HTTP tool
HTTP header checker
See the status code and response headers a website returns to our servers. Redirects are shown, not followed.
Reading the result
Status codes starting with 2 mean success, 3 are redirects, 4 are client errors such as 404, and 5 are server errors such as 503. Headers like server, cache-control and content-type show how the site is configured.
Related
Want to know if a site is down for everyone? Use our website checker or look up its DNS records.