HTTP Header Analyzer
Analyze HTTP response headers
Source Input
Processed Output
What is the HTTP Header Analyzer?
HTTP headers control security, caching, and content behavior. Paste headers from any response (browser devtools → Network → copy) and this analyzer grades your security headers (Strict-Transport-Security, Content-Security-Policy, X-Frame-Options), explains cache-control directives, flags cookie attributes, and lists missing best practices.
Frequently Asked Questions (FAQ)
Q: Which security headers should every site have?
At minimum: Strict-Transport-Security, X-Content-Type-Options: nosniff, and a Content-Security-Policy. Referrer-Policy and X-Frame-Options are strongly recommended.
How to Use the HTTP Header Analyzer
- 1Paste your input into the editor above — or start from the preloaded example.
- 2Adjust any options, then click Run to process instantly in your browser.
- 3Review the output panel, then copy, download, or save it as a reusable snippet.