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Network
Look up A, AAAA, MX, TXT, NS, and CNAME records for a domain.
Runs entirely in your browser, nothing is uploadedResolved from your browser via Cloudflare’s public DNS-over-HTTPS resolver, not queried authoritatively, so results reflect what that resolver currently has cached.
The lookup is sent from your browser to Cloudflare’s public DNS over HTTPS resolver.
A, AAAA, MX, TXT, NS and CNAME records are requested and shown with the time to live each one reports.
Handy right after a change, to see what a resolver is currently handing out.
Look up and explain a domain’s SPF record, mechanism by mechanism.
Open toolLook up and explain a domain’s DMARC policy, tag by tag.
Open toolLook up a domain’s DKIM record for a selector you provide, and explain its tags.
Open tool