HTTP Headers Checker | Status, Cache and Security Headers
Check a URL's HTTP status, redirects, content type, cache rules, server headers, and common security headers.
What the HTTP Headers Checker Shows
The HTTP headers checker fetches a URL and shows status code, redirects, content type, caching rules, server hints, and security-related headers returned by the page.
Headers Worth Reviewing
Look for status codes, canonical redirects, cache-control, content-type, HSTS, CSP, X-Frame-Options, referrer policy, and whether unexpected server details are exposed.
When to Check Headers
Use it before launches, after hosting changes, during CDN setup, when debugging redirects, and when checking whether security or cache headers are actually reaching the browser.
About This Tool
HTTP Headers Checker fetches the response headers for any URL and displays them in a readable list. It shows status code, content type, cache directives, security headers, and redirect chains so you can inspect how a server responds without using browser developer tools.
When to Use It
Use this to verify that security headers such as Content-Security-Policy and Strict-Transport-Security are set correctly, to debug caching behaviour, or to confirm that a redirect chain ends at the right destination.
How to Use
- Enter the URL you want to inspect.
- Click Check to fetch the response headers.
- Review the status code and header list.
- Check for missing security headers flagged in the results.
Frequently Asked Questions
Can it follow redirects?
Yes. The tool follows redirects and shows the full chain so you can see each intermediate step and the final destination.
What security headers should every site have?
Essential security headers include Strict-Transport-Security, Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, and Referrer-Policy.
Does it work with HTTPS sites?
Yes. The tool supports both HTTP and HTTPS URLs and will report whether HTTPS is configured correctly.