Registered 22 years ago, on no blocklists we checked, valid HTTPS, the site answered HTTP 404.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.
| A | 104.26.10.39 104.26.11.39 172.67.70.99 |
|---|---|
| AAAA | 2606:4700:20::681a:a27 2606:4700:20::681a:b27 2606:4700:20::ac43:4663 |
| NS | adel.ns.cloudflare.com alec.ns.cloudflare.com |
| TXT | v=spf1 -all facebook-domain-verification=7akblgtmzroi48r5lyrqddvzojtooz google-site-verification=VNLiS2VLxjYQKbuupFjE_Z55bGaJmQlXCNYTR89VvyM |
| registrar | NameCheap, Inc. |
|---|---|
| registered | 2005-02-08 |
| expires | 2027-02-07 |
| last changed | 2026-01-13 |
| nameservers | alec.ns.cloudflare.com adel.ns.cloudflare.com |
| status | client transfer prohibited |
| valid | yes |
|---|---|
| issuer | Let's Encrypt |
| covers | *.donmai.us, donmai.us |
| protocol | TLSv1.3 |
Domain is properly signed — chain validated by an independent validating resolver
| SPF | pass v=spf1 -all |
|---|---|
| DMARC | warning policy none |
| DKIM | none of 1 common selectors |
Whether mail claiming to be from this domain can be checked as genuine.
Green: clean. Red: listed. Grey: the list did not answer.
Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on donmai.us.
Reference: /llms.txt.
Watch donmai.us. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.
Watch — $1 / 30 days