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2s.io domain email-security
https://2s.io/api/domain/email-security
answers 402
Grade a domain's email-authentication and DNS-security posture from live DNS in one call: SPF, DMARC (policy + alignment), DKIM (for the supplied or common selectors), MTA-STS, TLS-RPT, DNSSEC, CAA, and BIMI. Pass domain (and optional dkimSelector). Returns an overall letter grade, a summary (spf/dmarcPolicy/dkim/mtaSts/dnssec/caa/bimi + spoofingProtected), and a per-mechanism block with the raw r
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.0045
- Network
- base
- Pay to
- 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 226 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-09-06T01:22:21.723Z (2h ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2F2s.io%2Fapi%2Fdomain%2Femail-security"