Launch URL tester
Run a quick public launch check before sharing your app: response, HTTPS, redirect target, HTML, headers, robots, and sitemap.
Launch URL tester
Check whether a public URL responds, ends on HTTPS, returns HTML, and exposes basic crawl files.
Rate limited to 5 tests per minute. Only public http/https websites are allowed; localhost and private IPs are blocked.
Result
Enter a public URL to see launch checks here.
This is a lightweight smoke test, not a full security audit or uptime monitor.