Cyber Security Search Engines

In the 21st century, it has become crucial for every user, including IT security professionals, to access search engines, as they have become essential tools. 

Currently, Google and Bing are among the most used search engines. Users can use these search engines to find answers to their queries or anything else they want.


Since Google and Bing have been so successful, there is a whole collection of search engines now available on the internet like:-

  • Safari
  • Yandex
  • DuckDuckGo

What do you think about the publically available search engines? Do you think they contain every bit of information you could need?

The straightforward answer is the big “No.” In such a scenario, you might have to choose an alternative method to access the data or information you seek.

Security professionals often need quick access to the data and the ability to connect the dots between different pieces of information when performing tasks such as

  • Open-source intelligence gathering
  • Reconnaissance
  • Vulnerability detection
  • Network security breach identification

In recent years, several search engines have been developed that are primarily focused on cyber security.

What Are Cyber Security Search Engines?

The field of cyber security is constantly evolving. In today’s era, having all the necessary resources and search tools related to cyber security is crucial to staying protected against emerging unwanted cyber threats.

A cyber security search engine enables users to find information and data related to cyber security topics, as these search engines are mainly intended for this purpose only.

While the primary focus of these search engines is to provide results related to the following topics:-

  • Malware
  • Viruses
  • Hacks
  • Data breaches
  • Other cybersecurity-related topics

The rapid evolution and growth of these search engines are significant.

In terms of the number of types of data that users can filter their searches for, these services allow them to search for:- 

  • Malicious links
  • Malicious websites
  • Vulnerable systems

Apart from identifying security flaws in systems and networks, these search engines can also be used as a real-time defense against several cyber threats.

Cybersecurity awareness is rising rapidly as the internet becomes more exposed to severe faults. Due to this, cyber security search engines are evolving swiftly, adding advanced security features to protect consumers.

Here Are Our Picks For The 30 Best Cyber Security Search Engines

  • Shodan: Internet-connected device search engine for discovering IoT devices, cameras, and critical infrastructure.
  • ExploitDB: Comprehensive database of known software vulnerabilities and exploits for security research.
  • Censys: Internet-wide scanning and data collection platform for assessing security and compliance.
  • SecurityTrails: Provides comprehensive domain and IP address data for threat intelligence and security analysis.
  • ZoomEye: Cyberspace search engine for discovering devices and monitoring internet activities.
  • Pulsedive: Threat intelligence platform offering feeds, search, and enrichment for cybersecurity data.
  • GrayHatWarfare: Index of publicly accessible Amazon S3 buckets for security analysis.
  • PolySwarm: Decentralized threat detection marketplace utilizing multiple antivirus engines.
  • Fofa: Search engine for internet-connected devices, providing threat intelligence and cybersecurity insights.
  • LeakIX: Real-time data breach and leak detection platform for monitoring sensitive information exposures.
  • DNSDumpster: Domain research tool to discover DNS information and related subdomains for security assessments.
  • FullHunt: Cybersecurity search engine for discovering vulnerabilities and misconfigurations in web applications.
  • AlienVault: Unified security management platform offering threat intelligence and incident response capabilities.
  • ONYPHE: A cybersecurity data search engine aggregates various sources for threat intelligence and monitoring.
  • Grep App: Code search engine for discovering security vulnerabilities and patterns in open-source repositories.
  • URL Scan: The service scans and analyzes URLs for potential security threats and malicious content.
  • Vulners: Database of software vulnerabilities and exploits with search and alerting capabilities.
  • WayBackMachine: Internet archive allowing users to view historical snapshots of websites.
  • Dehashed: Search engine for finding leaked databases, compromised accounts, and exposed personal information.
  • Netlas: Cybersecurity search engine for discovering internet-connected assets and vulnerabilities.
  • CRT sh: Certificate transparency log monitoring service for discovering SSL/TLS certificates.
  • Wigle: Search engine for discovering and mapping wireless networks globally.
  • PublicWWW: Source code search engine for finding websites with specific technologies or vulnerabilities.
  • Binary Edge: Provides internet-wide scanning and threat intelligence data for cybersecurity analysis.
  • GreyNoise: Internet background noise analysis tool for identifying benign and malicious internet activity.
  • Hunter: Email address search engine for finding and verifying professional email addresses.
  • DorkSearch: Utilizes Google Dorks to find specific security vulnerabilities and exposed data.
  • IntelligenceX: Data search engine focusing on historical and leaked data for cybersecurity investigations.
  • Packet Storm Security: Archive of security advisories, exploits, and tools for vulnerability research.
  • SearchCode: Code search engine for discovering vulnerabilities and code patterns in open-source projects.

Best Cyber Security Search Engines And Their Features

Best Cyber Security Search Engines 2024FeaturesStand Alone FeaturePricingFree Trial / Demo
1. Shodan 1. Network Monitoring
2 . Comprehensive IP Enrichment
3. Map view
4. Exploit search
5. Keyword filters
IoT and network device searchFree and paid plans are available.Yes
2. ExploitDB1. Open-Source
2. Easy-to-Use Interface
3. Proof-of-Concepts
4. Actionable Data
5. Wide Coverage
Database of public exploitsFree access.No
3. Censys1. Vulnerability Assessment
2. API Access
3. Comprehensive Data
4. Asset Tracking
5. Detailed Device Information
6. Search Functionality
Comprehensive Internet asset searchFree and paid plans are available.Yes
4. SecurityTrails1. Comprehensive domain and IP address data
2 Advanced search capabilities
3. Access to historical data
4. Fast detection and response
5. Third-party risk assessment
6. Attack surface reduction
7. Threat hunting
Domain and IP historical dataFree and paid plans are available.Yes
5. ZoomEye1. Device and Service search
2. Geolocation
3. Vulnerability search
4. Exploit search
5. Connected Object Detection
Cyberspace search engine for devicesFree and paid plans are available.Yes
6. Pulsedive1. Offers a range of APIs
2. Offers a range of integrations
3. Real-Time Threat Monitoring
4. Indicator of Compromise (IOC) Search
Threat intelligence and research platformFree and paid plans are available.Yes
7. GrayHatWarfare1. Search Functionality
2. Quick and Easy Access
3. Content Preview
4. Security Warnings
5 Alerting Functionality
Publicly exposed S3 buckets searchFree and paid plans are available.Yes
8. PolySwarm1. Decentralized marketplace
2. Collaborative approach
3. Real-time threat detection
4. Reward system
5. Scalability
Marketplace for malware detection enginesFree and paid plans are available.Yes
9. Fofa1. Powerful search capabilities
2. Active detection technology
3. Advanced filtering options
4. The ability to create hierarchical portraits based on IP
5. Integration with other tools 
6. Up-to-date and comprehensive coverage
Internet-wide search and monitoringFree and paid plans are available.Yes
10. LeakIXNetwork and Internet asset discoveryData leak and breach searchFree and paid plans are available.Yes
11. DNSDumpster1. DNS reconnaissance
2. Mapping
3. Visualization
4. Reverse DNS lookup
5. information gathering
DNS recon and research toolFree access.Yes
12. FullHunt1. Assets Discovery
2. Real-Time Notification
3. Scanners Integration
4. Continuous Vulnerability Scanning
5. Configuration and Scheduling
6. Assets Inventory and Database
7. Internet-Connected Assets Monitoring
8. Programmable APIs
Continuous attack surface managementFree and paid plans are available.Yes
13. AlienVault1. Unified Threat Detection
2. Correlation of Events
3. Threat Intelligence Feeds
4. Behavior Monitoring
5. Incident Response
6. Compliance Management
7. Open Threat Exchange (OTX)
Threat intelligence and security insightsFree and paid plans are available.Yes
14. ONYPHE1. Internet Scanning
2 Dark Web Monitoring
3. Malware Analysis
4. API Access
Cyber threat intelligence search engineFree and paid plans are available.Yes
15. Grep App1. Large Index
2. Fast Search
3. Easy navigation
4. Integrations
5. Advanced Search Options
Search code repositories efficientlyFree and paid plans are available.Yes
16. URL Scan1. Free to use
2. Real-time scanning
3. Integration with other security tools
4. Detailed scan reports
5. Customizable scanning options
Scan and analyze websitesFree and paid plans are available.Yes
17. Vulners1. Comprehensive vulnerability database
2. Advanced search capabilities
3. Real-time vulnerability monitoring
4. Integration with other tools
5. Customizable alerts
Database of vulnerabilities and exploitsFree and paid plans are available.Yes
18. WayBackMachine1. Website Archiving
2. Search Function
3. Web Time Travel
4. Public Domain
5. API Access
6. Save Websites
Internet archive for historical dataFree access.No
19. Dehashed1. Data Breach Reporting
2. Email tracking
3. Data leak prevention
4. Specification finder
5. Web-Based
6. Indexed search
Search leaked databases and breachesFree and paid plans are available.Yes
20. Netlas1. Search any section of a host response
2. Search by Favicon, Whois Fields, ASN, and GeoIP data
3. Search for Domains, Subdomains, Certificates, and Technologies
4. Handling of redirects
5. Vulnerabilities and PoCs
6. API SDK for Python
Search in the dark web and breachesFree and paid plans are available.Yes
21. CRT sh1. Comprehensive Certificate Database
2. User-Friendly GUI Interface
3.. Transparent Certificate Logs
4. Algorithm Visibility
5. Open-Source Nature
6. Trust
7. Reliability
Certificate transparency logs searchFree access.No
22. Wigle1. Network Mapping
2. Search and Filtering
3. Network Details
4. Signal Coverage Maps
5. Statistics
6. Analytics
7. API Access
Wireless network mapping and searchFree access.Yes
23. PublicWWW1. Source Code Search
2. Historical Data
3. Keyword Search
4. Technology Detection
5. Advanced Filters
Search source code in web pagesFree and paid plans are available.Yes
24. Binary Edge1. Internet-Wide Scanning
2. Asset Discovery
3. Asset Monitoring
4. Vulnerability Assessment
5. Threat Intelligence
6. Security Event Monitoring
7. API and Integration
8. Historical Data Analysis
Cybersecurity data and analytics platformFree and paid plans are available.Yes
25. GreyNoise1. Contextual data enrichment
2. Threat intelligence classification
3. Noise reduction
4. APIs and integrations
5. Internet-wide scanning visibility
6. Threat hunting and research
Internet noise intelligence platformFree and paid plans are available.Yes
26. Hunter1. Email Finder
2. Email Verifier
3. Campaigns
4. Integrations
5. API
6. Chrome Extension
Email address search and verificationFree trial, paid plansYes
27. DorkSearch1. Advanced search operators
2. Customizable queries
3. Easy-to-use
4. Comprehensive search results
5. Automated Scanning
Google dork search engineFree access.Yes
28. IntelligenceX1. Searches in a variety of sources
2. Keeps a historical archive
3. Privacy focused
4. Ad-free
5. Wide Integrations
Search source code on web pagesFree and paid plans are available.Yes
29. Packet Storm Security1. Vulnerability Database
2.News and Analysis
3. Security Advisories
4. Whitepapers and Research
5. Community Contributions
Cybersecurity tools and advisoriesFree access.No
30. SearchCode1. Extensive Code Search
2. Repository Indexing
3. Vast Language Support
4. Open Source Integration
5. Code Comparison
Source code search and analysisFree access.Yes

1. Shodan


Users can utilize Shodan (Sentient Hyper-Optimised Data Access Network) to detect internet-connected devices, find their users and vulnerabilities, and hunt for exploits through banner grabbing and server port scanning.

Boolean operators and filters make Shodan search efficient. It offers 50 free results and premium subscriptions for more. This 2009 search engine by John Matherly searched Internet-connected devices and systems.

However, threat actors may utilize it to locate susceptible systems that were poorly safeguarded and vulnerable to multiple intrusions.

It provides complete information on internet-connected devices, including:

Security configurations


Other important details

Shodan is nicknamed the scariest search engine since it can find unsecured webcams and industrial control systems. A powerful search engine like Shodan might be excellent or terrible. Threat actors may exploit Shodan, so use any tool appropriately.

Why Do We Recommend It?

  • Shodan locates online devices.
  • Shodan checks computers and devices online for active ports and services.
  • GPS coordinates help Shodan locate each gadget.
  • Shodan reviews service ads.
  • Shodan identifies insecure or misconfigured devices.
  • Shodan searches for ICS.
  • Shodan finds susceptible settings and vulnerabilities.
  • Shodan seeks IoT gadgets.
  • Shodan API automates device lookups.
  • Shodan regularly indexes new devices.

Demo video

Pros and Cons of Shodan

1. Powerful search capabilities1. Privacy concerns
2. Exploit the search feature2. Potential for misuse
3. Identify misconfigured devices3. Technical expertise required
4. Identify trends and patterns4. Incomplete data

2. ExploitDB


Offensive Security, a reputable information security training business, maintains ExploitDB, which helps high-end penetration testers practice.

In addition to delivering many Information Security Certifications, Offensive Security offers extensive penetration testing services. ExploitDB is an excellent tool for security analysts and researchers to find network vulnerabilities due to its comprehensive database.

Additionally, it keeps you abreast of the latest cyberattacks. This collection helps users secure their networks by revealing threat actors’ and hackers’ newest TTPs.

Security professionals can get real-time exploits and proofs-of-concept from the ExploitDB. Unlike many other security tools that offer warnings, the ExploitDB contains exploits and samples that can be used to verify system and network security.

Why Do We Recommend It?

  • ExploitDB contains exploits, vulnerabilities, and protections.
  • Search for security weaknesses using product names, CVE identifiers, or phrases.
  • ExploitDB entries describe an exploit’s program, systems, methods, and prerequisites.
  • ExploitDB’s proof-of-concept code lets security researchers and pros reproduce vulnerabilities.
  • Metasploit and ExploitDB are linked. Exploits usually use Metasploit modules and auxiliary scripts.
  • ExploitDB displays exploit timelines and ages by vulnerability disclosure date.
  • Distributing hacked software and firmware, ExploitDB helps users find system vulnerabilities.

Demo video

Pros and Cons of ExploitDB

1. Customizable Alerts1. Limited Scope
2. Up-to-date Information2. Lack of Support
3. Timely Information3. Lack of Quality Control
4. Comprehensive Database

3. Censys


Censys is a cybersecurity search engine and internet-wide scanning platform mainly designed to help security experts discover and analyze devices, networks, and systems connected to the Internet. 

Censys provides a comprehensive internet view by continuously scanning and indexing various aspects of the digital landscape. The platform uses a combination of scanning TTPs to gather information about devices and services on the internet.

It collects the following types of data such as:-

  • Open ports
  • Protocols
  • SSL/TLS certificates
  • Banners

This information is then indexed and made searchable through the Censys interface. Users can leverage Censys to perform a wide range of security-related tasks.

Here below, we have mentioned the tasks that could be done via Censys:-

  • Search for specific devices or services
  • Analyze vulnerabilities
  • Analyze misconfigurations
  • Track the adoption of encryption protocols
  • Track the adoption of cipher suites
  • Monitor certificate issuance
  • Monitor certificate revocation
  • Identify potential security risks within their networks

It indexes and organizes this information to enable users to search for specific:-

  • Devices
  • IP addresses
  • Domains
  • Certificates
  • Other network-related data

Those seeking to explore and understand the Internet’s infrastructure will find its comprehensive database and search capabilities extremely useful.

It’s worth noting that while Censys provides valuable information, it respects individuals’ privacy and adheres to ethical data collection practices. 

It focuses on gathering publicly available information and does not engage in unauthorized or intrusive activities.

Why Do We Recommend It?

  • Censys regularly scans networks to find and gather device data.
  • We classify our servers, routers, and IoT devices with Censys.
  • Censys helps businesses find security vulnerabilities in their devices and services that an adversary could exploit.
  • Censys monitors SSL/TLS certificates from trusted authorities using Certificate Transparency logs.
  • Censys provides real-time threat feeds on emerging threats, malicious actors, and attack trends.
  • Censys helps organizations assess their servers, websites, and security credentials.
  • Censys’ powerful API integrates with security systems and processes quickly.

Pros and Cons of Censys

1. Historical Data Analysis1. Lack of Real-time Data
2. Powerful Search Capabilities2. Dependency on Internet Scanning
3. Comprehensive Internet Visibility
5. Threat Hunting

4. SecurityTrails


SecurityTrails is a robust inventory that comprises an extensive database of domain and IP address data, catering to the needs of users and applications that require absolute transparency with a real-time updation feature. 

The robust technology it uses provides a comprehensive and reliable view of the internet infrastructure. Because it can update its real-time data, it offers an in-depth look at the current state of the internet.

With their easy-to-use tools, you can:-

  • Quickly analyze your DNS data
  • Monitor your DNS data
  • Provide you insight into your network
  • Provide you insight into potential security threats

To reduce the attack surface of your network and detect new threats, SecurityTrails has proven to be the right solution for assessing third-party risks.

The use of real-time data foundations and lightning-fast data stores makes the SecurityTrails API more robust and makes its outcomes more accurate.

SecurityTrails is trusted by over 100,000 users worldwide for its fast-detecting products that help prevent and eliminate potential threats and loopholes. 

Why Do We Recommend It?

  • SecurityTrails track IP addresses, name servers, and other DNS changes.
  • SecurityTrails’ WHOIS informs domain owners and registrars.
  • Past IP addresses can be tracked.
  • SecurityTrails helps users detect subdomains when assessing site security or design.
  • IP address-based reverse DNS lookups disclose webpages and servers.
  • SecurityTrails offers DNS zone files containing all entries for domain A, CNAME, MX, TXT, etc.
  • Domain SSL/TLS certificate searches show authority, expiration, and more.

Demo video

Pros and Cons of SecurityTrails

1. Offers broad data resources1. Limited free version
2. Comprehensive view of Internet infrastructure2. Expensive
3. Fast response timing3. No live support

5. ZoomEye


ZoomEye is a search engine for Internet-connected devices developed by the Chinese company “Knownsec.”

Recently, the ZoomEye search engine has become an essential tool for many security professionals, including some who, unfortunately, use it for unauthorized purposes. 

It can be utilized to collect valuable data about potential targets and vulnerabilities. However, unauthorized access to or attempts to hack into a website is illegal, and we strongly discourage this approach.

ZoomEye allows users to search for specific types of Internet-connected devices, such as:-

  • Routers
  • Webcams
  • Servers
  • IP addresses
  • Open ports

ZoomEye also provides a mapping feature that shows the geographical distribution of the devices it has indexed. To locate network devices connected through the internet, ZoomEye uses:-

  • Xmap 
  • Wmap

Security analysts can quickly identify potentially vulnerable devices on the internet with the help of ZoomEye. It also allows them to monitor and track vulnerable devices in real time to stop the further propagation of malware.

It also allows users to view historical data on the devices it has indexed, as this helps to identify the following things:- 

  • Changes in device configurations
  • The new devices that have come online

In addition, users can access ZoomEye’s data via API, which allows for integration with other tools and platforms.

Why Do We Recommend It?

  • ZoomEye locates servers, switches, routers, and more.
  • ZoomEye lists IP cameras, routers, web servers, databases, and more.
  • ZoomEye and Shodan work well together to discover and learn about targets.
  • It finds security vulnerabilities in target systems and services by analyzing ads, software versions, and other data.
  • ZoomEye lets you search by location, company, OS, and more.
  • ZoomEye recognizes webpages and apps by domain or IP address.
  • It can detect and analyze IoT devices, including cameras, smart homes, and industrial control systems.
  • ZoomEye’s dynamic map shows global targets.

Demo video

Pros and Cons of ZoomEye

1. Comprehensive data1. Limited scope
2. Cost-effective2. Limited support
3. API access3. Security concerns

6. Pulsedive


Pulsedive is a threat intelligence platform that provides real-time information on potential cyber threats. It analyzes data from various sources to offer a complete and up-to-date picture of possible cyber threats.

While the sources include:-

  • Malware analysis reports
  • Dark web monitoring
  • Social media feeds

To quickly identify potential threats, Pulsedive allows users to search for specific indicators of compromise (IOCs) like:-

  • IP addresses
  • Domain names
  • Hashes

Pulsedive also provides tools for users to analyze and visualize the data to export it for use in other security tools.

The company also provides a paid version (Pro version) of the platform with several additional pro features. At the moment, Pulsedive consumes more than 40 OSINT feeds.

Such a comprehensive feed contains a wide range of data, including over a million IP addresses, domains, and URLs. On Pulsedive, you can search for all these data types for free.

In short, Pulsedive is a complete package as a threat intelligence platform since it provides users with all the information and tools they need to track and mitigate any potential security threat.

Why Do We Recommend It?

  • Pulsedive’s threat intelligence database includes IOCs, malware signatures, IP addresses, domains, URLs, and hashes.
  • IP addresses, domain names, email addresses, and hashes might reveal threats and malicious conduct.
  • Pulsedive evaluates risk indicators based on context, credibility, frequency, and severity.
  • X Pulsedive adds malware kinds, campaigns, threat actors, and security reports to its database.
  • Pulsedive tracks threat actors’ TTPs, linkages, activities, and indicators.
  • Pulsedive hashed questionable files for malware analysis.
  • Pulsedive helps users gather danger intelligence from numerous sources.

Demo video

Pros and Cons of Pulsedive


1 Customizable alerts
1. Limited free tier
2. Real-time updates2. Massive amount of data with complexity
3. Integrations3. Dependence on external sources

7. GrayHatWarfare


GrayhatWarfare’s free tool revealed 48,623 open S3 buckets. Individuals and businesses use Amazon S3 buckets to store and distribute data.

The expert software engineers at GrayhatWarfare built this searchable database that illuminates the worrying condition of cloud security. Many public and private organizations use Amazon’s Simple Storage Service (S3) for content caching.

S3 is a dependable and effective content distribution method for media and government entities. It is one of the most incredible options for storing and accessing massive amounts of data, and it is highly scalable and adaptable for companies of all sizes.

By default, files are placed in safe and private buckets to prevent unauthorized access. User settings can be readily changed to make these files public.

This flexibility is helpful, but it’s crucial to alter settings carefully to prevent unauthorized access to critical data for illegal purposes.

Why Do We Recommend It?

  • GrayHatWarfare searches public Amazon S3 buckets.
  • S3 buckets can be found using keywords, domains, and other criteria.
  • GrayHatWarfare lists S3 bucket files and objects.
  • GrayHatWarfare users can access public S3.
  • It aids debugging, security studies, and data breaches.
  • GrayHatWarfare shows public S3 bucket metadata and access limits.
  • AWS accounts, organizations, or other details can identify bucket owners.

Demo video

Pros and Cons of GrayHatWarfare

1. Efficient and Easy to Use1. Potential Privacy Violations
2. Helpful for Security Researchers2. Legal and Ethical Concerns
3. Free to use3. Limited Functionality

8. PolySwarm


PolySwarm is a hub of a decentralized network of threat detection engines that allows users to scan files and URLs for threats using a network of security experts. 

PolySwarm, a community and network that detects malware across the internet, is powered by NCT, a cryptocurrency based on Ethereum. The platform creates competition between multiple security vendors within the industry to find and identify threats.

This approach offers a broader threat analysis and is even more effective than relying on a single vendor’s solution. 

PolySwarm uses blockchain technology to maintain a secure and decentralized ecosystem that ensures:-

  • Transparency
  • Fair threat analysis
  • Accuracy of the threat analysis

The platform, built on Ethereum, is designed to detect new malware and respond to it as soon as it is detected. Furthermore, PolySwarm has also been recognized as an ecosystem capable of detecting cyber threats worldwide in real-time.

Using a combination of commercial and specialized engines, PolySwarm cultivates a broader spectrum of threats to protect enterprises from new attacks. Several advantages, including immediate gains, are offered to all participants in PolySwarm’s marketplace.

PolySwarm aims to provide consumers worldwide with awareness and countermeasures against new, emerging security threats.

Why Do We Recommend It?

  • Distributed antivirus engines and security experts scan files and URLs for viruses in PolySwarm.
  • PolySwarm verifies file and URL safety using threat information and databases.
  • Using cutting-edge malware detection algorithms, polySwarm investigates viruses, worms, Trojans, and ransomware.
  • PolySwarm analyzes URL and file activity to detect malicious network communications, file changes, and system changes.
  • PolySwarm emphasizes zero-day threats.
  • PolySwarm blocks are phishing and drive-by downloads.
  • PolySwarm scanning reveals risks, symptoms, severity, and prevention

Demo video

Pros and Cons of PolySwarm

1. Wide integration1. Limited user base
2. Improved threat detection2. Uncertain regulatory environment
3. Combination of commercial and specialized engines3. Dependence on experts

9. Fofa


FOFA is an excellent search engine that can map out the entire internet. Its active detection technology has already identified over 4 billion assets online.

FOFA has also accumulated an impressive 350,000 fingerprint rules. It can quickly identify most software and hardware network assets, giving you even more powerful search capabilities.

The asset data that FOFA provides can be used in many ways to support your work or project. And, with the ability to create hierarchical portraits based on IP, you can easily visualize and understand complex data relationships.

FOFA is a cyberspace search engine developed by BAIMAOHUI. It provides users with a fast-track method for finding the information they need.

There are several things you can search for on it, including:-

  • Vulnerability scope analysis
  • IPs
  • Domains
  • Popularity ranking statistics
  • Hosts
  • Titles
  • Headers
  • Application distribution statistics

Overall, it is a complete package set for users in the field of cybersecurity; in short, this search engine could become the perfect choice for them.

Why Do We Recommend It?

  • For example, Fofa can filter search parameters such as IP address, domain name, port number, protocol, and location.
  • Fofa crawls the internet for computers, networks, and other data.
  • Fofa sees target system software, versions, and configurations in internet-facing ads and headers.
  • The Fofa search engine finds IP addresses and domain names.
  • Signatures or patterns help Fofa find vulnerabilities and compromise indicators.
  • We scan IoT devices for vulnerabilities at Fofa.

Demo video

Pros and Cons of Fofa

1. Advanced analysis1. Lack of advanced features
2. Comprehensive search2.. Overwhelming search results
3. Simple to advance customizations3. Limited function
4. Multitude of filters4. Data accuracy

10. LeakIX


LeakIX is like two platforms in one. It revolutionizes information searching by combining a powerful search engine with an open reporting platform to provide unprecedented access to public information.

Although LeakIX and Shodan have distinct capabilities and search queries, LeakIX’s web-based platform provides a similar user experience to Shodan while offering its unique features.

One of the significant advantages of the platforms is that it can offer valuable insights into the following things:-

  • Compromised devices
  • Servers
  • Database schemas online

The LeakIX service provides a more comprehensive insight into compromised servers’ systems than Shodan, which also tags compromised servers.

By fixing misconfigurations that cause leaks and other security risks, LeakIX connects the source, hosting firms, CERTs, and researchers. Additionally, LeakIX, a Belgian project, is new and hasn’t achieved global prominence among experts.

Despite being relatively new, LeakIX has the potential to become the following must-have tool in the market, with the ability to be utilized by the following entities:-

  • Penetration testers
  • Malware researchers
  • OSINT community

If you’re interested in LeakIX’s queries, their website has a dedicated page for them. Check it out here (!

Why Do We Recommend It?

  • LeakIX scans the internet for indexed information, data leaks, public datasets, and other open resources.
  • LeakIX searches can be limited by IP address, domain name, port number, protocol type, country, industry, and more.
  • Online study and data collection by LeakIX creates an index of public services, gadgets, and infrastructure.
  • The LeakIX index lists exposed databases, their types, IP addresses, and credentials.
  • It monitors data leak sources and frequency.
  • LeakIX indexes IoT data and devices.
  • LeakIX indexes vulnerable services, systems, and devices for easy discovery.

Demo video

Pros and Cons of LeakIX

1. Comprehensive data collection1. Requires technical expertise
2. Advanced search capabilities2. Limited data sources
3. Collaboration features
4. API access

11. DNSDumpster

DNSDumpster is a nifty tool that can help you uncover all the hosts related to a domain. The best part? It’s completely free! Knowing what visible hosts an attacker might see is crucial when assessing security.

Among the information provided by the application is the following:-

  • Geographical data
  • Host details
  • Email addresses
  • Formats 

All of these data can be used to understand the targets’ networks better. The best part of this tool lies in its ability to help you explore all the hosts associated with a domain. And guess what? This can be done at no cost since it’s a free domain research tool.

Network attackers and defenders must immediately map an organization’s attack surface. Understanding an organization’s vulnerabilities helps you find holes and improve security, whether attacking or defending.

Why Do We Recommend It?

  • DNSDumpster finds and lists DNS resources.
  • DNSDumpster finds domain subdomains.
  • IP-based reverse domain name search is possible with DNSDumpster.
  • DNSDumpster shows domain, subdomain, and IP address relationships.
  • DNSDumpster stores the domain hosting provider and autonomous system number.
  • It searches for domain registrants, expiration dates, name servers, and contact information.
  • DNSDumpster shows old DNS records to track DNS configuration changes.

Demo video

Pros and Cons of DNSDumpster

1. Quick and efficient1. Limited scope
2. Complete data gathering2. Dependency on publicly available information
3. interactive map3. No guarantee of privacy

12. FullHunt

Cyber Security Search Engines

FullHunt is the most comprehensive database of the entire internet’s attack surface, and at the moment, there is no better database available on the internet’s attack surfaces than FullHunt.

It began as an innovative project addressing a crucial security concern numerous companies face worldwide. Recently, it has become quite complicated for enterprises to defend their precious digital assets from threat actors and sophisticated cyber-attacks. 

The evolution of cyber threats and increased online criminal activities have made these things difficult. So, FullHunt helps businesses identify their attack surfaces, track them for vulnerabilities, and perform ongoing security scans to stay protected.

It’s one of the best enterprise-grade frameworks to detect changes and exposure in the external attack surface. In addition, the architecture has grown to provide accurate intelligence to worldwide enterprises to defend their digital environments.

A complete security solution that can identify and neutralize threats in real-time to protect sensitive data and intellectual property of enterprises across industries is the project.

To effectively manage an attack surface, an organization needs a comprehensive platform to automate and streamline various processes. For this, FullHunt is the one-stop solution that offers a complete platform.

Why Do We Recommend It?

  • FullHunt locates data and assets in a given domain or company.
  • FullHunt inspects the assets it discovers for security flaws.
  • Exploits and vulnerabilities for individual assets can be scoured with FullHunt.
  • Cloud storage buckets, web servers, and networking devices are all areas where FullHunt can find faulty settings.
  • FullHunt monitors certain domains and businesses for data breaches.
  • FullHunt evaluates the target company’s third-party assets and services.
  • FullHunt is constantly checking for vulnerable assets and updated configurations.
  • Data on attack surfaces and vulnerabilities is visualized and reported by FullHunt.

Demo video

Pros and Cons of FullHunt

1. Comprehensive Search1. Limited Coverage
2. Wide integrations2. Paid
3. Offers free trial3. Complexity
4. Scalability4. Limited customization

13. AlienVault


AlienVault is an entirely open-source security information and event management (SIEM) solution offering advanced features to its users.

AlienVault is based on an Open Threat Exchange (OTX) that facilitates open collaboration and information sharing among the following entities to counter arising cyber threats:-

  • Private companies
  • Independent security researchers
  • Government agencies

The intelligence community transformed the way it handles threat data with OTX. Integrating community-generated OTX threat data is possible in AlienVault and third-party security products, ensuring the latest threat intelligence updates for threat detection defenses.

Currently, the OTX community boasts a massive network of over 190,000 participants from 140 countries worldwide. This diverse community shares a staggering amount of information, with over 19 million potential threats reported daily.

Why Do We Recommend It?

  • AlienVault aggregates global threat data from multiple sources.
  • AlienVault’s threat intelligence stream alerts users to new threats, vulnerabilities, and attack trends.
  • AlienVault monitors IP addresses, domains, and URLs for malicious or suspicious activity.
  • Threat information and knowledge exchange through AlienVault helps communities cooperate.
  • Malware signatures and indicators help filter threat intelligence for previously discovered malware.
  • AlienVault monitors botnet communication, command and control servers, and compromised devices.
  • AlienVault’s threat intelligence feed includes CVEs, severity ratings, and exploits.
  • Live threat intelligence from AlienVault illuminates regulatory compliance.

Demo video

Pros and Cons of AlienVault

1. Streamlined workflow1. Slow performance
2. Pre-built reports, templates, and workflows2. Complex setup and configure
3. Real-Time Alerts3. Limited automation capabilities
4. Free



ONYPHE is a search engine mainly designed for cyber defense. It is focused on discovering and managing attack surfaces and allows scanning the entire Internet and dark web to identify exposed assets. It can also crawl links like a regular web search engine.

ONYPHE’s Cyber Defense Search Engine gathers open-source and cyber threat intelligence data from the internet by crawling various sources and listening to background noise.

Furthermore, their data can be searched using a web form or multiple APIs. The platform gathers and aggregates data on various aspects of the internet, including:-

  • IP addresses
  • Domains
  • Open ports

Apart from security researchers, it can also be used by organizations to evaluate their security posture to identify potential vulnerabilities.

Why Do We Recommend It?

  • Online scanning and data collection by ONYPHE generates cyber-threat intelligence.
  • Passive DNS traffic monitor ONYPHE records hostnames, IP addresses, and subdomains.
  • ONYPHE analyzes domain name whois data, proprietors, and contact information.
  • ONYPHE examines SSL/TLS certificate details, expiration dates, and domains.
  • It contacts Shodan for data and tracks all CVEs, severity ratings, and exploits.
  • ONYPHE’s IP geolocation data helps identify cyber threats.
  • ONYPHE reports and visualizes cyber threat intelligence.

Demo video

Pros and Cons of ONYPHE

1. Comprehensive Data Collection1. Data Overload
2. Real-Time Threat Intelligence2. Data Accuracy
3. Customizable Visualizations3. Complexity
4. Collaboration Features

15. Grep.App

Grep.App is a versatile search engine that empowers its users to perform searches through more than half a million publicly available repositories on GitHub for relevant code snippets.

In short, across a vast number of repositories, it can be used to search for specific-

  • Code snippets
  • Functions
  • Keywords offers extensive search capabilities, including an exact match for the string entered and all punctuation and special characters. 

In addition, the search functionality supports regular expressions and implements the RE2 syntax for improved accuracy and flexibility. So, with these capabilities, tracking down elusive coders on GitHub has never been easier.

Why Do We Recommend It?

  • Search half a million Git repositories for keywords or code samples.
  • Limit search results by repository, language, file type, or size with this app.
  • Software that supports regular expressions offers advanced and varied search capabilities.
  • searches codebases for comments, variable names, and function names.
  • Grep.App searches for language-specific grammar and structure.
  • The app remembers searches and saves repository bookmarks for convenient access.
  • Searches and functionality can be automated using the API.

Demo video

Pros and Cons of Grep.App

1. Code Preview1. Limited to code search
2. Customizable search options2. Self-hosting
3. Simple UI

16. URL Scan

Cyber Security Search Engines
URL Scan is a free online service that helps detect and analyze potentially malicious URLs and websites. Security researchers and other users use this tool to determine the safety of a particular URL or website.

When a URL or website is submitted to, the service performs various checks to identify any suspicious or malicious behavior, such as:-

  • Phishing attacks
  • Malware distribution

While to do so, the service uses a range of techniques to perform this analysis, including:-

  • Sandboxing
  • Static analysis
  • Dynamic analysis
  • Behavioral analysis

It follows an automated process in which submitted URLs are accessed like regular users, and the resulting page navigation activity is recorded for analysis.

This tool is a complete package for anyone who wants to ensure:-

  • Website security
  • Identify threats
  • Examine potential threats
  • Detect suspicious activities

Reports include an overview of the scan’s results and recommendations for addressing any identified security concerns. Along with the detailed URL analysis, it also offers several security resources and tools to help users better understand the issue and fix it more efficiently.

Why Do We Recommend It?

  • URL Scan analyzes website URLs.
  • URL Scan checks your website for XSS, SQL injection, and weak server setups.
  • It searches blacklists and reputation databases to assess a website’s reputation.
  • URL Scan checks websites for malware and infiltration.
  • URL Scan tests website SSL/TLS against security requirements.
  • URL Scan checks webpages for harmful links and files.
  • URL Scan verifies website safety and trustworthiness.

Demo video

Pros and Cons of URL Scan

1. Completely free1. Limited scanning depth
2. Detailed reports2. Limited scanning frequency
3. Powerful scanning capabilities3. False positives

17. Vulners

Cyber Security Search Engines

Vulners is a web-based vulnerability database and search engine that provides information about:-

  • Security vulnerabilities
  • Exploits
  • Patches
  • Bug bounty

It’s a comprehensive security database with machine-readable format descriptions for various software vulnerabilities. The database contains information about multiple types of vulnerabilities found in:-

  • Software
  • Hardware
  • Web applications

The continuously updating database and the establishment of cross-references between bulletins allow you to stay current with the latest information security threats.

On the Vulners platform, users can perform a search using a variety of search criteria like:-

  • Vulnerability type
  • Vendor
  • Product
  • Date

The search results also provide detailed information about the vulnerability. One of the noticeable features of this platform is that it shows the results in Google search style.

Vulners is a valuable platform that includes all the necessary security ingredients for anyone involved in cybersecurity, from individual researchers to large organizations.

Why Do We Recommend It?

  • Our catalog of software, hardware, and networking vulnerabilities is extensive.
  • A vulnerability’s “exploitability.” is its wild-world exploitability.
  • Exploit fixes, alternatives, and countermeasures are presented.
  • Citations include CVE and NVD.
  • Users can query the database and access vulnerability data using the Vulners API.
  • Vulners shares vendor and security company security notifications.
  • Users can generate vulnerability reports with Vulners.

Demo video

Pros and Cons of Vulners

1. Comprehensive Database1. Limited information on some vulnerabilities
2. Automatic analysis of security bulletins2. Limited free access
3. Frequent Updates

18. WayBackMachine


The Wayback Machine was developed in 1996 and launched to the public in 2001. It’s a part of the Internet Archive website. With this free online tool, users can step back in time and view the appearance of websites worldwide at specific moments in history.

The Wayback Machine boasts an extensive collection of more than 562 billion web pages, and the archive continues to expand with numerous new additions every year.

The Internet Archive’s primary objective, a non-profit organization, is to enable unrestricted access to a wide range of information and knowledge, which aligns with its stated mission of “universal access to all knowledge.”

The Internet Archive has amassed an enormous collection of data over time, occupying a staggering 70 Petabytes of server space, and interestingly, they maintain two copies of each item in their archive.

Moreover, book digitization services, which receive donations, grants, and fees, keep this organization funded. To ensure the utmost privacy of its users, the Internet Archive refrains from tracking their IP addresses. Instead, it employs the secure HTTPS protocol across its entire platform.

Demo video

Pros and Cons of WayBackMachine

1. Historical Record1. Incomplete Record
2. Content Recovery2. Unreliable
3. Tracking Website Changes3. Copyright Issues

19. Dehashed

Cyber Security Search Engines

DeHashed is an innovative cyber security search engine that allows users to quickly and efficiently search through billions of leaked and previously breached credential records. 

The search engine is powered by a database of over 10 billion records and is designed to help users locate information regarding any potential:- 

  • Data breaches
  • Leaked credentials
  • Malicious I.P. Addresses
  • Leaked Emails
  • Leaked Usernames
  • Leaked Names
  • Leaked Phone Numbers
  • Leaked VIN Numbers
  • Leaked Addresses

DeHashed also offers a variety of additional services, such as:-

  • Data monitoring
  • Data analysis
  • Security Reporting

A significant feature of DeHashed is the provision of free scans of the deep web, which protects against the leakage of credentials. DeHashed empowers users to monitor and safeguard their digital identities by leveraging its powerful search capabilities. 

So, whether you are a security expert or an individual conscious about privacy, DeHashed is a valuable tool for staying one step ahead of potential cyber threats.

Why Do We Recommend It?

  • Searching for usernames, email addresses, and passwords can reveal stolen login information.
  • DeHashed stores data breaches and other security event credentials.
  • If credentials are in DeHashed, users might be warned of dangers.
  • Using stolen credentials, DeHashed can assess password security.
  • Users can receive email or username notifications when DeHashed adds new account data.
  • DeHashed notifies users about credentials that are exposed on the deep web.
  • DeHashed’s API lets developers automatically collect exposed credentials.

Demo video

Pros and Cons of Dehashed

1. Offers a valuable resource.1. Don’t comprise all data breaches
2. Mass Information Recovery2. Limited scope
3. Offers insight into data breaches3. Dependency on user input

20. Netlas

Cyber Security Search Engines

Netlas is a scanner and search engine that scans IPv4 addresses, websites, web applications, IoT devices, domain names, and other online assets using various protocols and provides enriched data through its search engine.

While here below, we have mentioned the protocols used by it:-

  • HTTP
  • FTP
  • SMTP
  • POP3
  • IMAP
  • SMB
  • CIFS
  • SSH
  • Telnet
  • SQL

At the moment, you can access five general data collections that contain a lot of information, and here below, we have mentioned them:- 

  • Internet scan results
  • DNS registry
  • Domain WHOIS
  • SSL certificates

The search feature in allows users to create search queries using various conditions and operators, such as:-

  • Whois fields
  • GeoIP data
  • DNS registry data
  • Protocol fields
  • Technology and product names
  • Vulnerabilities

Netlas employs Elasticsearch as its primary data storage engine. Its simple and flexible query string language allows for creating complex search queries to locate any necessary data with minimal preprocessing.

The Netlas search engine offers extensive support for popular network protocols, allowing users to access host response fields as search query parameters from a mapping of over 10,000 fields continuously expanding with new protocols.

Netlas uses passive scanning to identify products and technologies in 75% of host responses, including product versions in 33% of cases. Based on these versions, Netlas determines vulnerabilities, updates each scan, and provides information on exploit availability.

Why Do We Recommend It?

  • Open ports, subdomains, IP addresses, and domains are scanned.
  • Netlas background logs hostnames, IP addresses, and subdomains from DNS.
  • Netlas scans internet-connected assets for ports and services.
  • Netlas verifies internet-connected objects’ SSL/TLS credentials.
  • Netlas tracks internet-connected asset upgrades.
  • Netlas adds diverse data to asset data.
  • The Netlas API allows programmatic access to features and asset data.

Demo video

Pros and Cons of Netlas

1. Advanced Protocols1. Paid service
2. Complex search queries2. Learning curve
3. Continuously updated vulnerability database3. Passive scan limitations
4 Enriched data4. Possible false positives/negatives


Cyber Security Search Engines (aka certificates.Saint Helena) is an open-source website that allows users to quickly locate SSL/TLS certificates for a specific domain, making it an ideal tool for certificate monitoring. offers a user-friendly GUI format for easy access to SSL/TLS certificates and maintains transparent certificate logs, including ciphertext-format algorithms.

It assists in vulnerability assessments and ensuring compliance with industry standards. The inclusion of ciphertext-format algorithms adds an extra layer of security and protection.

This platform has become a one-stop resource for users seeking to examine, track, and verify the security of domains and their associated certificates.

Moreover, it plays a vital role in enhancing the security of online communications and supporting the ongoing efforts to maintain a robust and trustworthy SSL/TLS ecosystem.

Why Do We Recommend It?

  • provides Certificate Transparency logs.
  • Domain monitoring tools in allow domain certificate monitoring.
  • stores all CT certificates.
  • It provides each logged certificate’s subject, issuer, validity period, key details, and more.
  • scans Certificate Transparency records for new certificates.
  • Certificate search in helps find subdomains.
  • can check for revoked certificates.
  • Visitors can view certificate issuance and use statistics on
  •’s API lets programs and processes access and integrate certificate information.
  • provides Certificate Transparency education.

Demo video

Pros and Cons of

1. Extensive Certificate Coverage1. Limited Certificate Verification
2. Transparency2. Data Overload
3. Accountability3. Lack of Real-Time Updates
5. Minimalistic UI

22. Wigle

Cyber Security Search Engines

Wigle is a crowdsourced database of wireless networks. It was created to map and track wireless networks around the world.

The name “Wigle” stands for “Wireless Geographic Logging Engine.” The database primarily focuses on Wi-Fi networks but also includes other types of wireless networks.

Wigle operates through a mobile app and a website where users can contribute data by scanning for wireless networks using their devices. Wigle aims to create a comprehensive map of wireless networks globally. 

Users can search the Wigle database to find or gather the following types of data:-

  • Information about Wi-Fi networks in specific locations
  • View network details
  • Analyze network statistics

This platform is thoroughly usable for the following entities in different ways in the cybersecurity landscape:-

  • Security researchers
  • Network administrators
  • Security enthusiasts or individuals

This portal makes it easy for anyone to gain insights into Wi-Fi usage patterns, signal coverage, and network security. Moreover, Wigle also provides a valuable resource for understanding the distribution of wireless networks. It relies on voluntary contributions from users. 

Consequently, the database may not include every wireless network, and the coverage can vary depending on the number of users actively contributing to the project.

Why Do We Recommend It?

  • Wigle is a global wireless network database.
  • It processes wireless network data for analytics.
  • Wigle maps and illustrates wireless networks.
  • Wigle lets users search and filter wireless network datasets by several parameters.
  • It shows wireless network detection frequency, signal intensity distribution, and MAC addresses.
  • Wigle’s signal strength mapping tool shows wireless network density.
  • It tracks wireless network accessibility, security, and other attributes over time.

Demo video

Pros and Cons of Wigle

1. Comprehensive Database1. Voluntary Contribution
2. Mapping and Visualization2. Privacy Concerns
3. Search Capabilities3. Limited Data for Non-Wi-Fi Networks
4. Filtering Capabilities

23. PublicWWW

Cyber Security Search Engines

PublicWWW is an advanced tool cum search engine that enables users to conduct comprehensive digital and affiliate marketing research. 

Its unique search capabilities surpass conventional search engines, empowering users with unparalleled opportunities for exploration and analysis.

In short, it’s a complete package for users searching for a tool that will provide them with full digital and affiliate marketing resources that no other search engine can provide.

By utilizing PublicWWW, individuals can effortlessly search for specific HTML, JavaScript, CSS, and plaintext elements within web page source code and compile a comprehensive list of websites with these elements. 

This unique function allows targeted investigation and essential information extraction from websites. PublicWWW’s powerful algorithms and search tools help users find alphanumeric fragments, signatures, and keywords in web pages and HTML code.

Its sophisticated search engine can yield up to 200,000 results per individual search query. In addition, users can easily download a massive amount of data as a CSV file for in-depth analysis.

This feature allows customers easy access to data, demonstrating the platform’s flexibility and sophistication. PublicWWW has 202,573,710 indexed websites. The database is extensive, yet the search process is fast, returning results in seconds.

Why Do We Recommend It?

  • PublicWWW users can search HTML, JavaScript, and CSS source codes.
  • Use PublicWWW to find relevant websites.
  • Ad network utilization is analyzed by PublicWWW.
  • PublicWWW users can study competitors’ tech and marketing methods.
  • PublicWWW helps investigate website advertising scripts and tags.
  • Searching PublicWWW for marketing tags or technology can reveal new marketing trends.
  • PublicWWW highlights affiliate-linked websites.
  • Searching PublicWWW for SEO tags, keywords, and optimization tactics aids website analysis.
  • Users can search PublicWWW for marketing data via a programming interface.
  • PublicWWW’s historical data lets users examine marketing trends.

Demo video

Pros and Cons of PublicWWW

1. Extensive Source Code Search1. Limited Visibility
2. Data Export2. Lack of Context
3. Multi-User3. Data Accuracy

24. BinaryEdge

Cyber Security Search Engines

By conducting comprehensive scans of the public internet, BinaryEdge generates real-time streams of threat intelligence and provides informative reports that reveal the vulnerabilities of internet-connected entities.

More companies expose their infrastructure and services online daily, increasing their vulnerability to cyberattacks. Organizations own many internet-exposed assets, some of which are undiscovered.

The increasing number of sensors in today’s world has complicated things, and without ongoing monitoring, it’s impossible to keep them internally and externally secure in organizational networks.

BinaryEdge gathers data by scanning and indexing various internet-facing systems, such as web servers, routers, IoT devices, and more. It uses active and passive scanning techniques to collect information about open ports, services, protocols, and potential vulnerabilities.

This data is processed and made available to clients through their web-based interface, API, or data feeds. BinaryEdge utilizes a network of scanners and honeypots to collect, classify, and connect diverse data sources.

Utilizing the information from these data points links digital resources to specific organizations, giving us a worldwide and current understanding of both familiar and unfamiliar assets owned by organizations.

So, it helps organizations in multiple areas, including:-

  • Cybersecurity monitoring
  • Threat intelligence
  • Risk assessment
  • Compliance management

Moreover, this platform also provides access to historical data, which can be valuable for forensic investigations or tracking the evolution of security vulnerabilities over time.

By leveraging the vast amount of data collected from the internet, BinaryEdge aims to enhance cybersecurity practices and improve the overall resilience of digital infrastructure.

Why Do We Recommend It?

  • BinaryEdge constantly scans the internet for vulnerabilities, unprotected ports, and undiscovered services.
  • It collects massive volumes of internet-connected device, service, protocol, and configuration data.
  • BinaryEdge analyzes computer and network vulnerabilities.
  • BinaryEdge actively detects vulnerability-focused attacks and exploitation.
  • It classifies online IoT devices.
  • BinaryEdge’s threat intelligence technology reports real-time threats, security flaws, and hostile acts.
  • API integration lets businesses link their data and services with BinaryEdge’s security architecture.

Demo video

Pros and Cons of BinaryEdge

1. Comprehensive Data Collection1. Technical Complexity
2. Actionable Intelligence2. Reliance on External Data
3. Real-Time Monitoring3. Privacy Considerations
4. Real-Time Alerts

25. GreyNoise


GreyNoise is a cybersecurity intelligence platform that provides information and insights into internet-wide scanning and malicious activities. 

It was created to help organizations and individuals better understand the noise level in their networks and differentiate between malicious and benign scanning activities.

GreyNoise collects and analyzes data from various sources, such as honeypots, darknets, and public scanning data, to identify and classify internet-wide scanning activity

It focuses on distinguishing between “background noise” generated by benign scanning tools and “malicious noise” generated by scanning activities associated with:-

  • Botnets
  • Vulnerability scanning
  • Other potentially harmful activities

The platform assigns color codes to different types of scanning activity. For example, GreyNoise categorizes benign scanning tools like Shodan and Censys as “benign,” while activities related to known malicious campaigns or botnets are labeled “malicious.” 

This classification helps security teams prioritize and address the more critical threats. By analyzing and sharing this information, GreyNoise aims to reduce security analysts’ workload by filtering out irrelevant scanning activity and providing actionable intelligence on potential threats. 

It helps organizations identify whether they are specifically targeted or part of broader scanning campaigns, allowing them to make more informed decisions about threat mitigation and incident response.

GreyNoise is used by security professionals, incident response teams, and researchers to gain insights into internet-wide scanning activities, identify emerging threats, and strengthen their overall cybersecurity posture.

Why Do We Recommend It?

  • GreyNoise searches the internet for servers, routers, IoT devices, and industrial control systems.
  • GreyNoise distinguishes “internet background noise” from targeted invasions.
  • It tracks devices, network owners, and prior activity.
  • It provides real-time data on developing risks, vulnerabilities, and harmful behaviors.
  • The API lets users incorporate GreyNoise’s data and services into their security infrastructure.
  • GreyNoise extensively studies network-wide scanning and assault operations.
  • GreyNoise lets researchers and analysts report suspicious or destructive conduct, discuss results, and collaborate on investigations.

Demo video

Pros and Cons of GreyNoise

1. Actionable intelligence1. Limited to scanning activity
2. In-depth research report analysis2. Reliance on external data sources
3. Integration capabilities3. Lack of real-time data
4. Dependency on a third-party platform4. Dependency on a third-party platform

26. Hunter

Cyber Security Search Engines

Hunter is a web-based service and tool primarily used to find and verify professional email addresses associated with specific domains or companies.

In addition to email search, Hunter offers email verification services, which can help determine the deliverability and validity of email addresses. It provides various features and services related to email outreach, lead generation, and verification. 

Users can search for email addresses associated with a particular domain, find a company’s most common email patterns, and even verify the deliverability of email addresses.

Hunter utilizes various sources to gather email addresses, including:-

  • Public data
  • Data breaches
  • Data provided by users

Hunter offers both free and paid plans, with the paid plans providing additional features and higher usage limits. Apart from this, it has gained popularity among the following entities:-

  • Sales professionals
  • Marketing professionals
  • Recruiters
  • Researchers 

All these entities always need to find and verify email addresses for various purposes.

Why Do We Recommend It?

  • Hunter searches for domain or website email addresses.
  • Hunter can find email addresses for any domain.
  • Hunter verifies email addresses’ deliverability.
  • The API lets apps incorporate Hunter’s email verification and search.
  • Hunter rates email addresses by reliability.
  • Hunter gathers data from the web and corporate networks.
  • Hunter tracks emails to measure email campaign success.

Demo video

Pros and Cons of Hunter

1. Email Finding1. Limited Free Usage
2. Campaign Management2. Accuracy Limitations
3. Vast Integrations

27. DorkSearch

DorkSearch is an advanced search tool that uses the power of custom queries and search operators. These components uncover covert information that is not easily discoverable via normal web browsing.

This strategy allows users to bypass typical search algorithms and obtain much-hidden info. DorkSearch is a must-have tool for cybersecurity professionals hunting for website vulnerabilities or anyone seeking odd information.

In short, it’s an easy-to-use tool that is extremely fast and time-saving. By using DorkSearch, you can access a multitude of information and data, such as

  • Website vulnerabilities
  • Email address lists
  • Sensitive documents
  • Usernames
  • Passwords
  • PII (Personally identifiable information)
  • PIFI (Personally identifiable financial information)

Are you wondering whether Dorking is entirely legal or not?

Don’t worry—it’s completely legal. It’s just another form of advanced searching—that’s it. But, abuse of it for illicit purposes could land you in jail or face severe consequences.

Why Do We Recommend It?

  • DorkSearch searches for relevant results using Google “Dorks”.
  • It speeds up searches to improve search results.
  • DorkSearch’s extensive filters let you search by file type, website, date range, and more.
  • DorkSearch lets users create and save Google Dorks for future searches.
  • DorkSearch scrapes and analyzes search results from documents and websites.
  • It finds website security gaps by searching for dorks with known security issues or misconfigurations.
  • DorkSearch on Google Dorks lets you search for websites, servers, directories, open ports, exposed files, and more..

Demo video

Pros and Cons of DorkSearch

1. Time-Saving1. Steep Learning Curve
2. Powerful Google searching 2. Limited Use Case7
3. Efficient data gathering3. Requires Technical Knowledge

28. IntelligenceX


IntelligenceX is founded by Peter Kleissner in 2018, and it is an independent European technology company that provides access to:- 

  • Open-source intelligence
  • Forensic tools

Headquartered in the vibrant city of Prague, Czech Republic, this organization is driven by a dedicated mission:- 

  • To foster the evolution
  • Keeping innovative search engine 
  • Maintaining an extensive data archive

IntelligenceX makes use of selectors and specific searches in the search process, and here below, we have mentioned a few of them:-

  • Email addresses
  • Domains
  • URLs
  • IPs
  • CIDRs
  • Bitcoin addresses
  • IPFS hashes

Utilizing its advanced capabilities, the search encompasses diverse realms, including the darknet, document-sharing platforms, whois data, public data leaks, and various other sources.

Moreover, the company diligently maintains an extensive historical data archive like the Wayback Machine. By providing fast and top outcomes, IntelligenceX seamlessly gives users access to the most discreet corners of the internet with minimal effort.

This formidable combination of swift search capabilities and an extensive data archive establishes IntelligenceX as an exceptionally powerful and innovative tool. With lightning-fast speed, it combs through billions of selectors within milliseconds, amplifying its efficacy.

Why Do We Recommend It?

  • Intelligence X may search Tor and I2P data.
  • Intelligence agencies can index unlawfully disclosed information.
  • It may consolidate and index data breaches, making finding email addresses and login credentials easier.
  • Domain intelligence may learn domain names.
  • Email intelligence may allow email address research and gathering.
  • This may involve finding email addresses, gathering metadata, and connecting them to digital personas.
  • Extra Benefits:
  • Intelligence X may collect OSINT data, document indexing and scanning, SSL/TLS certificate analysis, and other methods.

Demo video

Pros and Cons of Intelligence X

1. Accessibility1. Lack of transparency
2. Quick results2. Poor customer service
3. Comprehensive data source
4. Accurate and up-to-date results

29. Packet Storm Security

Cyber Security Search Engines
Packet Storm Security

Packet Storm Security is a popular online resource and information security website that was founded in 1998 by security researchers at The Packet Storm Team, and it mainly provides a wide range of resources that are related to:- 

  • Computer security
  • Hacking
  • Vulnerability/Exploit research

It’s one of the best platforms for security researchers and analysts to share their findings, including vulnerabilities, exploits, and proof-of-concept code. 

The website covers various aspects of computer security, such as:-

  • Network security
  • Web application security
  • Operating system vulnerabilities

In addition to the extensive collection of security resources, Packet Storm Security also provides news articles, security tutorials, and forums for discussions on security-related topics.

This platform’s focus is on cybersecurity issues. To keep users aware of cyber threats, it offers them the security intelligence and tools needed to defend against them.

Why Do We Recommend It?

  • Packet Storm Security may store every known software and operating system bug.
  • The platform may expose recent exploits that employ vulnerabilities to gain unauthorized access or commit crimes.
  • Packet Storm Security’s search and filtering features may help you find exploits and vulnerabilities.
  • Packet Storm Security may send emails, or RSS feeds to stay informed of vulnerabilities and exploits.
  • Packet Storm Security may offer vulnerabilities, exploits, whitepapers, security warnings, and cybersecurity technology.

Demo video

Pros and Cons of Packet Storm Security

1. Comprehensive Information1. Risky Use of Exploits
2. Up-to-Date Security Information2. Lack of Context
Cyber Security Search Engines

SearchCode is a code search engine that offers 75 billion lines of code from 40 million projects. It allows developers and programmers to search for source code and other programming-related resources across various repositories and websites.

It also provides a centralized platform for discovering and accessing source code snippets, functions, and entire projects. SearchCode indexes millions of repositories, including popular code hosting platforms like-

  • GitHub
  • Bitbucket
  • GitLab

It employs advanced search capabilities like regular expressions and filters to help users find specific code patterns, programming constructs, or project files.

Developers can utilize SearchCode for a variety of purposes, including:-

  • Finding examples of code implementation
  • Learning new programming techniques
  • Understanding how specific libraries or frameworks are used
  • Identifying potential vulnerabilities or bugs by analyzing similar code snippets

Moreover, it also offers an API for programmatic access to its database, which allows developers to integrate code search functionality into their own applications or tools.

Why Do We Recommend It?

  • SearchCode finds methods, functions, and classes.
  • SearchCode may support Python, Java, C++, JavaScript, and Ruby.
  • SearchCode may index code with links to relevant projects and repositories.
  • SearchCode results may include code snippets or examples to clarify queries.
  • SearchCode may offer advanced search filtering.
  • Filter by file extension, project size, creation date range, and more to find code repositories.
  • SearchCode may release an API for other apps and services.
  • This allows automated searches and downloads from SearchCode’s massive code repository.
1. Comprehensive Code Search1. Limited Code Context
2. Multiple Framework Support2. Quality and Relevance of Code
3. Multiple Language Support3. Lack of Private Repository Support


The existence of 30 cybersecurity search engines represents a significant development in cybersecurity.

However, cyber security search engines should not be seen as a standalone solution for comprehensive security, as they are powerful tools that complement existing security measures and practices. 

Employing the following security measures is still essential for maintaining a robust security posture:- 

  • Multi-layered security approach
  • Regular monitoring
  • Regular patching
  • User education
  • Strong security protocols

However, the search engines mentioned above offer a valuable resource for individuals and organizations actively seeking to increase their security measures and protect themselves against threats.

The diverse range of search engines available caters to various specific needs, including vulnerability assessment, threat intelligence, and malware detection.