HTTP header and security header checker
See every HTTP response header, the redirect chain, response time, HTTP/2 and a security-header grade.
Left today 10/10 uses · Guest
About HTTP header checker
Enter a page link; we request it like a browser and show every redirect step (e.g. http → https → www), each status code and all response headers.
The security section grades A–F on six headers that block common attacks, with what each one does.
FAQ
301 vs 302?
301 is a permanent move (Google passes ranking to the new URL); 302 is temporary.
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