Resolves a domain via public DNS, looks up the host's location, and scans the homepage for signals of the technology it's built with. Runs on free public APIs — results are best-effort, not a full audit.
Enter a domain name or a raw IPv4 address. If you give
it a domain, the tool first resolves the A record through Google's public DNS-over-HTTPS API to find the IP
address behind it. From there it looks up the host's approximate location and network owner (ISP/ASN), pulls the
domain's A, MX, NS, and TXT records so you can see how mail and nameservers are configured, and — for domains
only — fetches the public homepage through a proxy and scans the raw HTML for markup fingerprints (things like
wp-content for WordPress, __NEXT_DATA__ for Next.js, or a Cloudflare signature) to give
a best-effort guess at the technology stack.
This is useful for quickly sanity-checking where a site is hosted before you set up DNS records, confirming MX records point where you expect after an email migration, or getting a rough read on what a competitor's site is built with.
Is this a full security audit? No — it's a best-effort lookup built on free public APIs, not a substitute for a proper WHOIS/security scan.
Why couldn't it detect the technology stack? Some sites block the public proxy used to fetch their homepage, or don't leave detectable markup fingerprints — in that case the tool says so rather than guessing.
Does it work with IPv6? Currently only IPv4 addresses and domain names are supported.