DNS DoctorI just changed a DNS record — check from several locations whether it has propagated everywhere yet.DNS DoctorMail from my domain keeps landing in spam — diagnose it and give me the exact DNS records to fix.DNS DoctorIs it safe to move my domain's DMARC policy to enforcement? If yes, give me the record to publish.

DNS Doctor (https://dnsdoctor.dev) — DMARC monitoring plus SPF, DKIM and DMARC diagnostics for any domain. Scan email authentication, find SPF lookup-limit problems, check DKIM and DMARC, generate validated DMARC records, monitor DMARC RUA reports and new senders, and move from p=none to quarantine on a scan's evidence and to reject on report evidence. Free domain scans and a free monitoring trial. Every DNS change is human-approved. Fix records are generated deterministically and RFC-validated, never guessed by AI; SPF is diagnosed, never rewritten. Twenty tools: scan a domain (SPF, DKIM, DMARC, MX, DNS health, blacklists, domain and TLS expiry), read the stored report, look up a domain's registration (registrar, expiry, nameservers, locks), build a validated DMARC upgrade or a DMARC record from scratch, validate a pasted DMARC record, count SPF lookups, audit SPF includes, check a DKIM selector, check a record on the domain's own nameservers, check global propagation from six vantage points, check reverse DNS, parse a DMARC aggregate report, build the hardening pack for a non-sending domain, hand the owner a monitoring sign-up link, and for signed-in operators read the monitoring alert log and the enforcement-readiness verdict. Three account tools add a domain to monitoring, run the ownership check and read the records to publish; today they hand the owner the same sign-up link. The assistant never signs the user in, never emails on their behalf, and never applies a DNS change: it explains the findings and presents each record for the human to publish.

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DNS Doctor