How to use 301 Redirect Checker
- Give 301 Redirect Checker response headers, cURL -i output or a HAR to work from.
- Press Analyze to run it locally in your browser.
- Review the parsed redirect chain and security-header audit shown below.
About this tool
Everything 301 Redirect Checker does happens on your own device. 301 Redirect Checker reconstructs a redirect chain and status codes from response headers, a curl -i dump or a HAR you capture in DevTools.
It also audits the final response for security headers such as HSTS, CSP and X-Content-Type-Options. No data is sent anywhere, so it stays fast and private by default.
Frequently asked questions
What is 301 Redirect Checker for?
301 Redirect Checker runs entirely on your device: add your input, and it checks it locally in real time.
Do I need an account for 301 Redirect Checker?
No — 301 Redirect Checker needs no account, sign-up or installation.
Is my input private in 301 Redirect Checker?
Yes — your input never leaves your device; 301 Redirect Checker does all the work in your browser.
Why can't 301 Redirect Checker fetch a live URL itself?
Browsers block cross-origin requests (CORS), so 301 Redirect Checker analyzes response headers, curl -i output or a HAR you capture and paste — all locally.
Can I use 301 Redirect Checker without a connection?
Yes — after the first load 301 Redirect Checker runs entirely offline.