Website & SSL
HTTP Header Checker
Inspect the HTTP response headers of any URL — status code, server, caching, security headers and more. A handy header checker for debugging and SEO.
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The HTTP Header Checker inspects the response headers a web server returns, including the status code, server software, caching directives, and security headers like HSTS, Content-Security-Policy and X-Frame-Options. These headers control how browsers and search engines treat your site, and reviewing them is the quickest way to confirm your caching, redirects, and security hardening are actually in place.
Built for developers, SEO specialists, and administrators in Phnom Penh, Siem Reap and across Cambodia who want visibility into what their server is really sending, this free tool by Hosting Cambodia lays out every header in a readable format. Enter a URL to check the status code, verify security headers are set, confirm caching behaviour, and spot missing or misconfigured headers that could affect performance or protection.
Frequently asked questions
What are HTTP security headers?
They are response headers like Strict-Transport-Security, Content-Security-Policy, and X-Frame-Options that instruct the browser to enforce protections against attacks such as clickjacking, cross-site scripting, and protocol downgrades.
Why should I check my HTTP headers?
Headers reveal your status codes, caching rules, server software, and security settings. Checking them confirms your configuration is correct and helps you find missing protections or caching issues.
What does the status code in the header mean?
The status code shows how the server responded, for example 200 for success, 301 or 302 for redirects, and 404 or 500 for errors. It is the first thing to check when diagnosing a URL.
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