Observed arrival · 2026-10-30

Lookproof’s mail and DNS diagnostics

lookproof.dev Visit website

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

A collection of mail, DNS, domain, and web checks, available in a browser or through a pay-per-request API.

Landing page captured for the 2026-10-30 issue.

For: Developers and AI agents checking mail or DNS configuration
Worth noticing: Tool pages list endpoints, limits, findings, and prices; some API schemas and machine-readable descriptions are still planned.

Field notes

Each tool page specifies its input, limits, findings, endpoint, and price; the catalog ranges from CAA and DNSSEC checks to IDN conversion and pasted zone-file linting. The API is described as returning structured status, data, and findings with evidence and freshness. Free browser checks are available, while API requests are priced individually; JSON schemas and a machine-readable API description are listed as future additions.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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