Factline
Use when you need to judge whether a website or email domain is trustworthy: registration date and domain age (RDAP), expiry, registrar, nameservers, email setup (MX, SPF, DMARC), disposable-email domains, and a low/medium/high risk with fl
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 113 ms
- Price
- $0.003 per call
- Paying buyers, last 30 days
- 2 (directory's own records)
- Paid calls, last 30 days
- 3
- Category
- DNS and domains
- Address
- https://factline.dev/v1/domain/check
Accuracy
Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.
For agents
This page as JSON: /sellers/18b36db19320.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).