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Email DNS Diagnostics

DNS Checker

Choose exactly which DNS records to inspect, run focused SPF, DKIM, and DMARC checks when needed, and keep the raw network output expanded for deeper troubleshooting.

Select individual DNS record types or use check-all / check-none Run SPF, DKIM, and DMARC as separate mail-auth checks Keep the raw JSON trail visible for support handoff
Base records query the exact host. SPF, DKIM, and DMARC add email-authentication specific analysis on top.
Common selectors: ecomail, google, default, k1, selector1
At a Glance

Built for deliverability setup and QA

Use it before onboarding a sending domain, while investigating a failed authentication check, or when you need a fast evidence bundle for engineering or support.

Records Choose the exact DNS layers you want to inspect before each run.
DKIM Test a selector directly without leaving the page.
Mail Auth Inspect SPF, DKIM, and DMARC separately instead of in one fixed bundle.
Raw Keep the technical JSON expanded so it is ready for escalation.
Domain Intel Profile WHOIS, DNS, TLS, and trust signals. Blacklist Checker Check public DNSBL and RHSBL sources. SPF Checker Expand SPF includes and count DNS lookups.
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