DNSTrustCheck: DNS & Email Health Checker
Run a full DNS and email-authentication scan on any domain — MX, SPF, DKIM, DMARC, BIMI, blacklist status, WHOIS, DNSSEC and more — and get a weighted health score with an exportable audit PDF.
Don't know your DKIM selector? Leave it blank — we'll try common ones automatically.
Bulk Domain Scan
Paste multiple domains (one per line) to scan them all and compare scores side by side — handy for agencies and consultants managing several client domains.
DMARC Aggregate Report Reader
If your DMARC record has an rua= address, mailbox providers send you periodic XML reports there — usually unreadable without a tool. Upload one (.xml or .xml.gz) to see a plain-language summary of who's sending as your domain and whether they're passing authentication.
Email Header Analyzer
Paste the full raw headers of an email (in Gmail: "Show original"; in Outlook: message properties → Internet headers) to see the delivery path and any authentication or spoofing red flags.