How to use Status Code Checker
- Paste or load response headers, cURL -i output or a HAR into Status Code Checker.
- Click Analyze — Status Code Checker processes everything on your device.
- Review the parsed redirect chain and security-header audit shown below.
About this tool
Everything Status Code Checker does happens on your own device. Status Code Checker reconstructs a redirect chain and status codes from response headers, a curl -i dump or a HAR you capture in DevTools.
Because browsers block cross-origin live requests, Status Code Checker works from captured headers rather than fetching the URL itself. Your input never leaves the page, and no account or install is required.
Frequently asked questions
What does Status Code Checker do?
Status Code Checker runs entirely on your device: add your input, and it checks it locally in real time.
Does Status Code Checker cost anything?
No — Status Code Checker is completely free, with no sign-up and no hidden limits.
Is my input private in Status Code Checker?
Yes — your input never leaves your device; Status Code Checker does all the work in your browser.
Why can't Status Code Checker fetch a live URL itself?
Browsers block cross-origin requests (CORS), so Status Code Checker analyzes response headers, curl -i output or a HAR you capture and paste — all locally.
Can I use Status Code Checker without a connection?
Yes — after the first load Status Code Checker runs entirely offline.