Registered 19 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 112 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 57.145.2.1 |
|---|---|
| AAAA | 2a03:2880:f381:1:face:b00c:0:25de |
| NS | a.ns.facebook.com c.ns.facebook.com d.ns.facebook.com b.ns.facebook.com |
| TXT | v=spf1 a ~all google-site-verification=fK7K3F-hT-Pre47WNaVLRyk-_nC0Kc7K-IzagA5gPEw |
| CAA | {'type': 'CAA', 'issue': 'digicert.com; account=271b0beda0771d006aa3a6c11b05187d456d6c239b46cb5241196095b09c92af', 'critical': 0} |
| registrar | RegistrarSafe, LLC |
|---|---|
| registered | 2007-05-03 |
| expires | 2034-05-03 |
| last changed | 2025-05-28 |
| owner | Meta Platforms, Inc. |
| nameservers | a.ns.facebook.com b.ns.facebook.com c.ns.facebook.com d.ns.facebook.com |
| status | client delete prohibited client transfer prohibited client update prohibited server delete prohibited server transfer prohibited server update prohibited |
| valid | yes |
|---|---|
| issuer | DigiCert Inc |
| covers | fbcdn.net, fbsbx.com, www.fbcdn.net |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 a ~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 fbcdn.net.
Reference: /llms.txt.
Watch fbcdn.net. 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