DNS lookup, propagation checker, blacklists, HTTP headers, dig & nameserver diffs, crawlability for search engines and AI, plus your own connection info. No sign-up required.
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All record types for any domain, plus a cross-nameserver consistency check.
Open toolCheck if your DNS changes have propagated across global public and open UK resolvers.
Open toolRegistrar, registration dates, nameservers and ownership for a domain or IP.
Open toolCheck an IP or domain against 16+ DNS blacklists (RBLs) in one go.
Open toolStatus code, full redirect chain and every response header for a URL.
Open toolrobots.txt, meta robots, sitemaps and per-bot access incl. AI crawlers.
Open toolIP geolocation, ISP and network details — your own IP or any address.
Open toolYour browser, device, screen and the IPv4/IPv6 addresses you connect from.
Open tool