DNS lookup
Query any record type over DNS-over-HTTPS. The query goes from your browser to Cloudflare's resolver (with Google as fallback); we never see it. Useful for checking propagation, MX records before a mail cutover, or the TXT records behind SPF and DKIM.
Quick reference
| Type | What it holds |
|---|---|
| A / AAAA | IPv4 / IPv6 address of a name |
| CNAME | Alias pointing one name at another |
| MX | Mail servers for the domain, with priority |
| TXT | Free text: SPF, DKIM, DMARC, verification strings |
| NS | The nameservers authoritative for the zone |
| SOA | Zone serial and timers; the serial changes when the zone does |
| CAA | Which certificate authorities may issue for the domain |
Seeing stale records after a change? Resolvers cache for the record's TTL, so a lookup here can legitimately differ from your office resolver until the TTL runs out. Checking the domain itself rather than its DNS? Use the domain expiry checker.
DNS per machine, not per domain.
Moorfox inventories which DNS servers every managed machine actually uses, per interface, which is usually where the mystery resolution problem lives.