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Use this free HTTP Header Checker to view HTTP response headers and request headers for any URL. It’s a quick way to debug redirects, caching, security policies, and server configuration directly in your browser.
Developers, SEOs, and system administrators can use the HTTP header tool to understand how a server responds, verify CDN behavior, and diagnose misconfigurations without needing a separate command-line client.
The HTTP Header Checker sends a request to the URL you provide and shows you:
Server, Content-Type, Cache-Control, Content-Encoding).200 OK, 301 Moved Permanently, 404 Not Found).It’s a simple way to inspect how your site responds to visitors, bots, and crawlers at the HTTP level.
https://www.example.com/).Search engines care about HTTP status codes and redirects. The HTTP Header Checker helps you:
301 vs 302 redirects.Location headers and redirect chains.Performance tools and CDNs rely on correct headers. By checking your headers, you can:
Cache-Control, Expires, and ETag headers.Content-Encoding (e.g., gzip, br) for compression.Security headers help harden your site against attacks. Use the HTTP Header Checker to verify:
Strict-Transport-Security (HSTS)Content-Security-Policy (CSP)X-Frame-Options, X-Content-Type-Options, and related headersSpot missing or misconfigured security headers quickly and plan updates to your server or application configuration.
Yes, the checker can follow redirects and show each step in the redirect chain, including status codes and Location headers.
The focus is on response headers returned by the server, but the tool can also display key request headers so you understand what was sent.
Yes. You can inspect headers for both HTTPS and HTTP endpoints, as long as the URL is publicly accessible.
Yes. You can run as many checks as you like directly in your browser, free of charge.
Optimism is an occupational hazard of programming: feedback is the treatment.
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