Registered 17 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 65 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 172.66.131.196 172.66.131.195 |
|---|---|
| AAAA | 2606:4700:10::ac42:83c4 2606:4700:10::ac42:83c3 |
| MX | 30 aspmx3.googlemail.com 20 alt2.aspmx.l.google.com 20 alt1.aspmx.l.google.com 30 aspmx5.googlemail.com 30 aspmx2.googlemail.com 10 aspmx.l.google.com 30 aspmx4.googlemail.com |
| NS | frank.ns.cloudflare.com heather.ns.cloudflare.com |
| TXT | perDsR5C google-site-verification=Pfj1np2DatPrDPYG9D1_g0qjtfMWlRnyRJjUXO1vpU4 postman-domain-verification=e01aedcebacc23ab2182217e65d1eac1036bdf6087d82722ddfe9118fa83b3c85f88ac02d6b833baad7f936a95ec45d3910822f0a859f321750adce7d7a09b46 cloudflare_dashboard_sso=b2f23f24fee0985f545094d556a85719 sinch-domain-verification=5864cf22-b0de-4413-9a07-35a9be503d1b jetbrains-domain-verification=cedozsfwyqxd7ykjil94jgxk2 apple-domain-verification=Oa87TbN9zgGp4xDQ v=spf1 include:_spf.google.com include:_spf.salesforce.com include:mail.zendesk.com -all google-site-verification=7VVtQXAmfNVNcmbSLPUfyNe9CubJrAtUiVxAOjcmAvg 13.06.2023 google-site-verification=ISFsnATuGD5Qz-MeRQntvXas_vdWC7N50jpDeyyGJAA MS=ms79540624 |
| CAA | {'type': 'CAA', 'critical': 0, 'issuewild': 'godaddy.com'} {'type': 'CAA', 'issue': 'sectigo.com', 'critical': 0} {'type': 'CAA', 'issue': 'amazon.com', 'critical': 0} {'type': 'CAA', 'critical': 0, 'issuewild': 'ssl.com'} {'type': 'CAA', 'critical': 0, 'issuewild': 'letsencrypt.org'} {'type': 'CAA', 'critical': 0, 'issuewild': 'amazon.com'} {'type': 'CAA', 'critical': 0, 'issuewild': 'pki.goog; cansignhttpexchanges=yes'} {'type': 'CAA', 'critical': 0, 'issuewild': 'digicert.com; cansignhttpexchanges=yes'} {'type': 'CAA', 'issue': 'digicert.com; cansignhttpexchanges=yes', 'critical': 0} {'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0} {'type': 'CAA', 'critical': 0, 'issuewild': 'comodoca.com'} {'type': 'CAA', 'issue': 'ssl.com', 'critical': 0} {'type': 'CAA', 'issue': 'godaddy.com', 'critical': 0} {'type': 'CAA', 'issue': 'pki.goog; cansignhttpexchanges=yes', 'critical': 0} {'type': 'CAA', 'critical': 0, 'issuewild': 'sectigo.com'} {'type': 'CAA', 'issue': 'comodoca.com', 'critical': 0} |
| registrar | Network Solutions, LLC |
|---|---|
| registered | 2009-10-29 |
| expires | 2028-10-29 |
| last changed | 2026-08-12 |
| nameservers | frank.ns.cloudflare.com heather.ns.cloudflare.com |
| status | client transfer prohibited |
| valid | yes |
|---|---|
| issuer | Sectigo Limited |
| covers | orcid.org, *.int.orcid.org, *.orcid.org, *.qa.orcid.org, *.sandbox.orcid.org, *.stage.orcid.org |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 include:_spf.google.com include:_spf.salesforce.com include:mail.zendesk.com -all |
|---|---|
| DMARC | pass policy quarantine |
| DKIM | found: google |
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 orcid.org.
Reference: /llms.txt.
IPv6. Does orcid.org work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.
Watch orcid.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