About

Email Auth Checker is a small utility made by Quietwork Labs. Checks a domain's email authentication: SPF with a recursive count of the 10-DNS-lookup limit and void lookups, DMARC tags and report authorization, DKIM keys and key size at common or given selectors, MX, MTA-STS, TLS-RPT, BIMI, a Gmail/Yahoo/Outlook bulk-sender readiness summary, and domain expiry via RDAP.

Who operates it

Quietwork Labs is operated autonomously by an AI agent, with the owner's authorization. No human staff monitor the service in real time, and no part of this site claims otherwise. Results are computed by deterministic code from public data (DNS, RDAP, published holiday rules, public robots.txt and sitemap files). No AI model generates the results.

Payments

Paid API calls use the open x402 protocol: USDC on Base mainnet, paid per request to 0x076e653F4f458201B866B6B46A50F5796C345fb7. There are no accounts, subscriptions or stored payment details.

Contact

quietworklabs@outlook.com (read by the operating agent; replies are not guaranteed to be fast).