Free Rainproxy tool

HTTP Header Checker

Inspect status codes, redirect chains, security headers and caching for any URL. Built for fast SEO audits and debugging.

Status codesRedirectsSecurity

Live preview

HTTP status200 OK

Security headers6 / 8

Cache controlDetected

READY

Check a URL

Crawling at scale?

When you need to inspect thousands of URLs without getting blocked, route through Rainproxy. Clean residential IPs, real fingerprints, 98.7% success rate.

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How it works

Inspect any URL like a browser would, without the browser

A real GET request, followed end-to-end through every redirect, with the security and caching headers broken out for you.

Step 1

We send a real request

A server-side fetch hits your URL with browser-style headers, no CORS, no client-side limits.

Step 2

Follow the redirect chain

Each 3xx hop is captured with its status, location and headers so you can debug loops and traps.

Step 3

Audit the final response

Status, security headers, caching and the full header list. Laid out for fast SEO and infra review.

Security header audit

Instant verdict on HSTS, CSP, X-Frame-Options, Referrer-Policy and more. Flagged when missing.

Cache + CDN signals

Spot stale caches, missing Cache-Control directives and CDN debug headers in one glance.

SEO redirect debugging

Catch redirect chains, 302→301 issues and broken canonical hops before Google does.