Observed arrival · 2026-08-28

Domain Health Scan Checks the DNS Paperwork Behind Email

domainhealthscan.com Observed source

Editorial interest 78/100 Selection signal · not a rating of the site

A public-DNS diagnostic tool for inspecting MX, SPF, DKIM, DMARC, and MTA-STS records without sending email or probing a mailbox.

Landing page captured for the 2026-08-28 issue.

Field notes

The checker queries public DNS rather than sending test messages or accessing a mailbox. It covers MX, SPF, DKIM, DMARC, and the MTA-STS DNS signal, with DKIM requiring a user-supplied selector. Its example report divides findings into evidence, impact, and a next check, and explicitly preserves unknown results instead of forcing them into pass or fail.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

⊠LoginAccess appeared gated

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

One card from the complete issue

Porion Gets More Tolerance

315,344 arrived 1,000 judged 1000 catalogued Enter the complete issue