Registered 26 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 46 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 208.80.154.224 |
|---|---|
| AAAA | 2620:0:861:ed1a::1 |
| MX | 10 mx-in2001.wikimedia.org 10 mx-in1001.wikimedia.org |
| NS | ns1.wikimedia.org ns0.wikimedia.org ns2.wikimedia.org |
| TXT | google-site-verification=AMHkgs-4ViEvIJf5znZle-BSE2EPNFqM1nDJGRyn2qk v=spf1 include:_cidrs.wikimedia.org ~all yandex-verification: 35c08d23099dc863 |
| CAA | {'type': 'CAA', 'iodef': 'mailto:dns-admin@wikimedia.org', 'critical': 0} {'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0} {'type': 'CAA', 'issue': 'pki.goog', 'critical': 0} |
| registrar | MarkMonitor Inc. |
|---|---|
| registered | 2001-01-13 |
| expires | 2027-01-13 |
| last changed | 2026-08-12 |
| owner | REDACTED FOR PRIVACY |
| nameservers | ns0.wikimedia.org ns1.wikimedia.org ns2.wikimedia.org |
| status | client delete prohibited client transfer prohibited client update prohibited |
| valid | yes |
|---|---|
| issuer | Let's Encrypt |
| covers | *.m.mediawiki.org, *.m.wikibooks.org, *.m.wikidata.org, *.m.wikimedia.org, *.m.wikinews.org, *.m.wikipedia.org, *.m.wikiquote.org, *.m.wikisource.org, *.m.wikiversity.org, *.m.wikivoyage.org, *.m.wiktionary.org, *.mediawiki.org |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 include:_cidrs.wikimedia.org ~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 wikipedia.org.
Reference: /llms.txt.
Watch wikipedia.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