HTTP probing

Which hosts run a web server, and what does it return?

HTTP probers take a list of hosts, request each one, and report status codes, titles, redirects and technologies. It turns thousands of names into a short list of real web applications.

Listed alphabetically. The order is not a ranking.

• httpxActive

  Multi-purpose HTTP probing toolkit that checks which hosts serve web content and reports status, title, server, TLS and technology data.

  11k stars · last push November 10, 2026 · v1.12.0 · MIT