Top picks: Cylana EASM, crt.sh, Findomain — plus 45 more compared.
Attack SurfaceKnock is a free External Attack Surface Management tool. Security professionals most commonly compare it with . All 48 alternatives are matched by shared capabilities, tags, and NIST CSF 2.0 coverage.
A closer look at the 8 most relevant alternatives and competitors to Knock, including their key features and shared capabilities.
AI-powered EASM platform for digital asset discovery and monitoring.
Bash script for subdomain enumeration via crt.sh certificate transparency logs.
A domain reconnaissance tool that automates subdomain discovery, port scanning, and monitoring with support for multiple data sources and notification integrations.
Amass is an open-source OWASP tool for comprehensive attack surface mapping and asset discovery through domain reconnaissance and subdomain enumeration.
A script to extract subdomains/emails for a given domain using SSL/TLS certificate dataset on Censys.
An automation framework that runs multiple open-source subdomain bruteforcing tools in parallel using Docker Compose and custom wordlists.
A command-line tool for discovering domains and subdomains related to a target domain during reconnaissance activities.
A Python-based tool for external attack surface discovery and reconnaissance across large-scale networks, focusing on IP address and subdomain enumeration.
AI-powered EASM platform for digital asset discovery and monitoring.
Bash script for subdomain enumeration via crt.sh certificate transparency logs.
A domain reconnaissance tool that automates subdomain discovery, port scanning, and monitoring with support for multiple data sources and notification integrations.
Amass is an open-source OWASP tool for comprehensive attack surface mapping and asset discovery through domain reconnaissance and subdomain enumeration.
A script to extract subdomains/emails for a given domain using SSL/TLS certificate dataset on Censys.
An automation framework that runs multiple open-source subdomain bruteforcing tools in parallel using Docker Compose and custom wordlists.
A command-line tool for discovering domains and subdomains related to a target domain during reconnaissance activities.
A Python-based tool for external attack surface discovery and reconnaissance across large-scale networks, focusing on IP address and subdomain enumeration.
ASM platform that scans external attack surfaces hourly for vulnerabilities
Internet intelligence platform for asset discovery and attack surface mapping
Automated ASM tool for multi-cloud environments with continuous asset discovery
Active attack surface mgmt solution for discovering & remediating unknown risks
Platform for external attack surface management and application security testing
Monitors internet-facing subdomains for vulnerabilities and misconfigurations
Discovers and inventories internet-facing assets including subdomains, IPs, and apps.
Attack surface management platform for discovering and securing exposed assets
Continuous external attack surface discovery and asset validation service
Automated digital asset discovery and monitoring for external attack surface
External attack surface mapping service to discover exposed digital assets
External attack surface scanning for MSPs to identify vulnerabilities
OSINT tool for mapping & monitoring risk ecosystems on Clear & Deep Web.
Continuous external asset discovery and monitoring with daily domain scans.
Maps external attack surface including assets, dark web exposure, and leaks.
Passive pre-sale domain diagnostic tool for vCISOs, MSPs & MSSPs.
ASM platform for continuous discovery and risk validation of internet-exposed assets.
Agentless EASM platform for asset discovery, exposure mgmt & risk reduction.
ZoomEye is an advanced cyberspace search engine that provides detailed information on cyberspace assets, including server software and version information, for cybersecurity experts, researchers, and enterprises.
FestIn discovers open S3 buckets associated with a domain using crawling and DNS reconnaissance techniques.
Explore the top million websites, ranked by referring subnets, and gain insights into online influence and popularity.
WiGLE.net is a platform that collects and provides data on WiFi networks and cell towers, with over 1.3 billion networks collected.
FullHunt is a next-generation attack surface security platform that enables companies to discover, monitor, and secure their external attack surfaces.
A technology lookup and lead generation tool that identifies the technology stack of any website and provides features for market research, competitor analysis, and data enrichment.
A source code search engine for searching alphanumeric snippets, signatures, or keywords in web page HTML, JS, and CSS code.
Automate your reconnaissance process with AttackSurfaceMapper, a tool for mapping and analyzing network attack surfaces.
Cloud_enum is a multi-cloud OSINT tool that enumerates publicly accessible resources across AWS, Azure, and Google Cloud platforms for security assessment purposes.
A Go-based tool for discovering and inventorying internet-facing AWS assets across single or multiple accounts to help maintain comprehensive cloud attack surface visibility.
An easy-to-use and lightweight API wrapper for Censys APIs with support for Python 3.8+.
Python utility for testing the existence of domain names under different TLDs to find malicious subdomains.
A multi-cloud DNS security tool that detects dangling DNS records and potential subdomain takeover vulnerabilities by scanning cloud infrastructure and DNS zones.
A black-box reconnaissance tool that discovers cloud infrastructure, files, and applications across major cloud providers for security testing purposes.
A powerful enumeration tool for discovering assets and subdomains.
A tool for performing subdomain enumeration using Censys API
A Python-based tool for subdomain enumeration and analysis
A simple web-based interface for subdomain enumeration using the subfinder tool.
A tool for generating permutations, alterations and mutations of subdomains and resolving them
Common questions security professionals ask when evaluating alternatives and competitors to Knock.
The most popular alternatives to Knock include Cylana EASM, crt.sh, Findomain, Amass, and censys-enumeration. These External Attack Surface Management tools offer similar capabilities and are frequently compared by security professionals evaluating their options.
There are 48 alternatives to Knock listed on CybersecTools, all within the External Attack Surface Management category. Each alternative is matched based on shared capabilities, tags, and NIST CSF coverage areas.
Knock is a free External Attack Surface Management tool. You can use it at no cost. Both free and commercial alternatives are available for comparison.
Knock is a External Attack Surface Management tool within the broader Attack Surface category. It is used by security professionals for external attack surface management capabilities and can be compared against 48 similar tools.
