
HTTP-Repeater (HTTP/s Live Headers) (Beta)
Sky Live HTTP Headers
Modify Header Value (HTTP Headers)
WebSniffer
HTTP Header Analyzer
HTTP-TRACKER
HTTP Header Spy
Smart Header
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.
HTTP-Repeater (HTTP/s Live Headers) (Beta)Sky Live HTTP Headers - Sky Live HTTP Headers is an open-source browser extension that visually displays HTTP requests and response headers from every website you visit.
Mozilla Observatory - The Mozilla Observatory is a project designed to help developers, system administrators, and security professionals configure their sites safely and securely.
Modify Header Value (HTTP Headers) - Modify Header Value (HTTP Headers) is a browser extension that allows you to add, modify or remove a header for any request to your preferred domains.
Hardenize - Hardenize provides a comprehensive and free assessment of web site network and security configuration.
WebSniffer - WebSniffer is an online tool to outlook HTTP request and response headers.
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.