Registered 11 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 147 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 64.233.180.100 64.233.180.113 64.233.180.102 64.233.180.138 64.233.180.139 64.233.180.101 |
|---|---|
| AAAA | 2607:f8b0:4004:c21::8b 2607:f8b0:4004:c21::65 2607:f8b0:4004:c21::66 2607:f8b0:4004:c21::8a |
| MX | 0 smtp.google.com |
| NS | ns3.google.com ns1.google.com ns2.google.com ns4.google.com |
| TXT | globalsign-domain-verification=vVNUJEiPJniKDdoWicJuKMf9V52-vb9KovoAIiiida firebase=ampproject-b5f4c v=spf1 include:_spf.google.com ~all google-site-verification=chKFPtQ4rPV7lmfP4CvdlBELHvQxmaRgeaHeH5J3R68 |
| CAA | {'type': 'CAA', 'issue': 'pki.goog', 'critical': 0} |
| registrar | MarkMonitor Inc. |
|---|---|
| registered | 2015-08-31 |
| expires | 2027-08-31 |
| last changed | 2026-08-12 |
| owner | REDACTED FOR PRIVACY |
| nameservers | ns1.google.com ns2.google.com ns3.google.com ns4.google.com |
| status | client delete prohibited client transfer prohibited client update prohibited |
| valid | yes |
|---|---|
| issuer | Google Trust Services |
| covers | misc-sni.google.com, *.aiplatform-notebook.cloud.google.com, *.aiplatform-training.cloud.google.com, *.backupdr.cloud.google.com, *.backupdr.cloud.google, *.backupdr-staging.cloud.google.com, *.backupdr-staging.cloud.google, *.backupdr-autopush.cloud.google.com, *.backupdr-autopush.cloud.google, *.backupdr-dev.cloud.google.com, *.backupdr-dev.cloud.google, *.backupdr-sandbox.cloud.google.com |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 include:_spf.google.com ~all |
|---|---|
| DMARC | pass policy reject |
| 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 ampproject.org.
Reference: /llms.txt.
Watch ampproject.org. 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