How to use Reverse DNS Lookup
- Enter a domain name into Reverse DNS Lookup.
- Run it, and Reverse DNS Lookup issues the DNS query directly from your browser.
- See the response from a public DNS resolver; Reverse DNS Lookup only displays what comes back.
About this tool
Reverse DNS Lookup runs as a page in your browser. Reverse DNS Lookup performs genuine DNS lookups over DNS-over-HTTPS against a public resolver, with no server of ours in the path.
The results are real query responses, not cached or invented values. The DNS query is sent from your browser to a public DNS-over-HTTPS resolver; this site has no backend and never sees it. A network connection is required, so it does not work offline.
Frequently asked questions
What does Reverse DNS Lookup do?
Reverse DNS Lookup resolves the DNS records you ask for by querying a public DNS-over-HTTPS resolver directly from your browser.
Does Reverse DNS Lookup cost anything?
No — Reverse DNS Lookup is completely free, with no sign-up and no hidden limits.
Does Reverse DNS Lookup contact a server?
Yes — Reverse DNS Lookup queries a public DNS-over-HTTPS resolver from your browser. This site has no backend and never sees the query, but the public resolver does, and a connection is required.