
Acunetix
Intruder
HackerOne
Trustwave Services
Forcepoint Web Security Suite
Bae Systems Cyber Security
Nessus
Varonis
HeaderShield.dev
Mozilla Observatory
Hardenize
ImmuniWeb
Snyk
Detectify
Aikido Security
Modify Header Value (HTTP Headers)
HeaderShield scans a URL for HTTP security headers like CSP, HSTS and X-Frame-Options, explains each one in plain language, assigns a grade, and outputs ready-to-paste Nginx, Apache and Cloudflare snippets to close the gaps. Free to scan.
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Intruder - Intruder is a security monitoring platform for internet-facing systems.
Mozilla Observatory - The Mozilla Observatory is a project designed to help developers, system administrators, and security professionals configure their sites safely and securely.
HackerOne - HackerOne provides a platform designed to streamline vulnerability coordination and bug bounty program by enlisting hackers.
Hardenize - Hardenize provides a comprehensive and free assessment of web site network and security configuration.
Trustwave Services - Trustwave is a leading cybersecurity and managed security services provider that helps businesses fight cybercrime, protect data and reduce security risk.
ImmuniWeb - AI-Enabled Attack Surface Management, Dark Web Monitoring, and Application Penetration Testing solutions tailored to reduce complexity and costs of Application Security Testing, Protection and Compliance.