SiteCheck
E-mail pre-check without SMTP: syntax, whether the domain can receive mail (MX or implicit MX, null MX, non-existent domain), disposable domain (9,000+ domain CC0 list), role account (info@, sales@...), free provider and a typo suggestion (
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 1111 ms
- Price
- $0.001 per call
- Paying buyers, last 30 days
- 4 (directory's own records)
- Paid calls, last 30 days
- 4
- Category
- DNS and domains
- Address
- https://api.sitecheck-api.workers.dev/api/email-check
Accuracy: paid answers checked against an independent record
Not yet in our paid checks. A seller we have not checked has neither passed nor failed.
For agents
This page as JSON: /sellers/567ad0007a56.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).