How to use Short URL Checker (Reference)
- Add response headers, cURL -i output or a HAR to Short URL Checker (Reference) to get started.
- Hit Analyze and Short URL Checker (Reference) computes the result client-side.
- Read the parsed redirect chain and security-header audit that Short URL Checker (Reference) lays out for you.
About this page
Short URL Checker (Reference) runs entirely in your browser. Short URL Checker (Reference) 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, Short URL Checker (Reference) 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
How do I use Short URL Checker (Reference)?
Use Short URL Checker (Reference) to check your input without installing anything; everything happens client-side.
Is Short URL Checker (Reference) free to use?
Yes — Short URL Checker (Reference) is completely free, with no usage limits.
Does Short URL Checker (Reference) upload my data?
No — Short URL Checker (Reference) processes everything locally in your browser, so nothing you enter is uploaded or stored.
Why can't Short URL Checker (Reference) fetch a live URL itself?
Browsers block cross-origin requests (CORS), so Short URL Checker (Reference) analyzes response headers, curl -i output or a HAR you capture and paste — all locally.
Does Short URL Checker (Reference) work on mobile?
Yes — Short URL Checker (Reference) is just a web page and runs on any modern browser, including phones and tablets.