
WebSniffer
Sky Live HTTP Headers
Modify Header Value (HTTP Headers)
HTTP-Repeater (HTTP/s Live Headers) (Beta)
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)
WebSniffer is an intelligence platform in the making that is going to track changes on the web and provide actionable insights to its users. The online tool can currently view HTTP response headers of any web page, do domain name, IP address lookups and provides userโs browser information such as IP address, user agent and more.
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.
WebSnifferSky 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.
HTTP-Repeater (HTTP/s Live Headers) (Beta) - HTTP-Repeater (HTTP/s Live Headers) (Beta) is a browser extension that lets you capture browser requests and repeat the process in a loop automatically.
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.