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LiveSource: DNS · public resolvers 1.1.1.1, 8.8.8.8Observed:
What this service recorded for this name on earlier checks. A check happens only when someone opens a report or calls the API: nothing is scheduled, so gaps between checks are normal.
3 checks since Oct 11, 2026, the latest on Oct 11, 2026.
No change in the recorded values across 3 checks.
The history is kept for the domain name only; nothing about who looked it up is stored. Entries not seen again for 400 days are deleted. Changing A, AAAA and hosting values are normal for sites behind load balancers or content delivery networks.
DMARC tells receiving mail servers what to do with messages that claim to come from your domain but pass neither SPF nor DKIM in a way that lines up with the From address. It is a TXT record at _dmarc.yourdomain that starts with v=DMARC1 and carries a policy: p=none, p=quarantine or p=reject.
It also gives you visibility. With a rua address in the record, receivers send you daily aggregate reports that list who is sending mail in your name.