📨 HTTP Headers
The HTTP Headers tool displays the headers your browser sends with every request and the headers the server returns. Headers are metadata that control caching, content type, language and security.
What it does
The HTTP Headers tool displays the headers your browser sends with every request and the headers the server returns. Headers are metadata that control caching, content type, language and security.
How to use it
On the IPChecks homepage, click the HTTP Headers card. No input is needed — the tool automatically captures your request headers (User-Agent, Accept-Language, etc.) and the response headers from the IPChecks server.
Real-world example
A developer debugging why a site won't cache can open the HTTP Headers tool to read the Cache-Control and Expires response headers. If they are missing or set to no-store, that explains the behaviour. Security headers such as Content-Security-Policy and X-Frame-Options are also visible here.
Frequently Asked Questions
What is the difference between request and response headers?
Request headers are sent by your browser to the server (who you are, what you accept). Response headers are sent back by the server (what it returned, how to cache it, security rules).
Are HTTP headers private?
They are transmitted in plaintext (unless over HTTPS) and include your User-Agent and accepted languages, but not your identity. They are normal, expected parts of every web request.
Why check security headers?
Headers like Content-Security-Policy, Strict-Transport-Security and X-Frame-Options protect against common attacks. Reviewing them helps confirm a site is configured with basic browser-side defenses.