How it works
This tool queries DNS directly from your browser using DNS-over-HTTPS (Google's public resolver), so there's no server in the middle and results are live. Pick a record type — MX for mail servers, TXT for SPF/verification records, NS for nameservers, and so on.
Privacy note
The domain you look up is sent to Google's public DoH resolver to answer the query — the same as any DNS lookup. Nothing else about you is stored by this tool.