NETWORK & SECURITY TOOLS

HTTP Header Checker 🌐

Q: What headers should I look for?

Useful headers include Cache-Control , Content-Type , Location , Strict-Transport-Security , Content-Security-Policy , X-Frame-Options , X-Content-Type-Options , Referrer-Policy and Permissions-Policy .

Inspect public website response headers, redirects, caching rules and important HTTP security headers.

Response headersRedirect chainSecurity checks

Check Website Headers

Website URL or domain

AllowedHTTP / HTTPS

Ports80 / 443 only

RedirectsUp to 5

🛡️ This checker only accepts public website domains. Direct IPs, localhost/private hostnames and custom ports are blocked to prevent abuse.

Header Summary

Status code

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Enter a public URL and check its response headers.

Final URL

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Redirects

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Headers found

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Security headers

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Server

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Content type

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Use this to inspect redirects, cache behavior, CORS and missing security headers before debugging a site.

Security Header Check

No check yet Waiting

Run a header check to see common security headers.

Redirect Chain

No redirect chain checked yet.

Response Headers

Header	Value
No headers checked yet.

Cache, CORS And Technical Details

Field	Value
No technical details checked yet.

HTTP Header Checker FAQ

What is an HTTP header checker?

An HTTP header checker shows the response headers sent by a website before the browser renders the page. Headers can reveal status codes, redirects, server software, content type, caching behavior, CORS rules and security policy hints.

What headers should I look for?

Useful headers include Cache-Control, Content-Type, Location, Strict-Transport-Security, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy.

Why does this tool block private targets?

This tool makes a server-side request, so it is limited to public website URLs. Blocking private hostnames, IP addresses and custom ports helps prevent abuse and keeps the checker focused on normal website debugging.