5 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Print and mail physical US letters (PDF, HTML, Markdown, DOCX, or image) and postcards via USPS, paid in USDC — with certified/registered proof options and standalone address verification at POST /v1/verify. Integration...
Change watch for dkim selector mail: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with...
Read public RDAP registration state for a domain: registrar or managing entity when published, registration and expiry dates, and registry status codes. This is a registration/ownership-lifecycle lookup only; it does not...
DKIM public key for selector "mail" of a domain: looks up mail._domainkey.<domain> (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms th...
Check whether an isolated cart can reach checkout and expose blockers without payment. It never logs in, creates an order or finalizes checkout.