How to use URL Status Checker
- Add response headers, cURL -i output or a HAR to URL Status Checker to get started.
- Press Analyze to run it locally in your browser.
- Use the parsed redirect chain and security-header audit URL Status Checker produces — nothing was uploaded.
About this page
URL Status Checker is a static, client-side tool with no backend. URL Status 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. Nothing you enter is uploaded, and it keeps working offline once the page has loaded.
Frequently asked questions
What is URL Status Checker for?
URL Status Checker lets you check your input right in the browser, with the result shown instantly and nothing uploaded.
Do I need an account for URL Status Checker?
No — URL Status Checker needs no account, sign-up or installation.
Is my input private in URL Status Checker?
Yes — your input never leaves your device; URL Status Checker does all the work in your browser.
Why can't URL Status Checker fetch a live URL itself?
Browsers block cross-origin requests (CORS), so URL Status Checker analyzes response headers, curl -i output or a HAR you capture and paste — all locally.
Can I use URL Status Checker without a connection?
Yes — after the first load URL Status Checker runs entirely offline.