On no blocklists we checked, valid HTTPS, the site answered 200 in 481 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 171.67.215.200 |
|---|---|
| AAAA | 2607:f6d0:0:925a::ab43:d7c8 |
| MX | 10 mxa-00000d07.gslb.pphosted.com 10 mxb-00000d07.gslb.pphosted.com |
| NS | argus.stanford.edu atalante.stanford.edu ns6.dnsmadeeasy.com ns7.dnsmadeeasy.com avallone.stanford.edu ns5.dnsmadeeasy.com |
| TXT | 00DVG000007nUP7=1TBVG0000000LkP notion-domain-verification=zGjaM9fWZoGRyOnvaxST0hfeCzfxvxzJnKMTN69sYJw htBOpqv5il135Xfa09GRiVHY09Xb9qXNj6o5lAfj8gNoBvyyGu5rSb4gvSj9lCUwY1NF0+wL2BO1ZDIcGIpADQ== google-site-verification=1HuKdQQTxv1R8v4dxihLzji-mH23d2KchIeaxsljN6Q brevo-code:09357c2630559d902817770f34dbf0b1 google-site-verification=bamHrkKBqpOQ8ouXQe0uFSuvVUFTB_TLju7gSCNq_Qw airtable-verification=d28bb41f3c1cb2569170fbdc7758b3e3 adobe-idp-site-verification=4c872117a60d5c3b7d132914730b3f3e2189c67a217450a2f3bc18a683a98f78 onetrust-domain-verification=1e6b4a2989b7412499dca24f8188396b 7A06A26ABB86CDADD0ED6FBF1464DF6B brevo-code:97c04c03c676317dbc22a7ee103483a6 mgverify=c7c142ba8b95199619ad561a75f165ad285c322b3892f9621c083b0293fd0da0 airtable-verification=b8f5e3c2468d582f896b4a8f0839dd8a asv_domain=3c0fdba17820a84cf2eaf5c0246775e0 bluebeam-verification=67www8belw9ml0gclwnde5xr14of7s 00Dg0000006IKxz=1TBWG0000000Q49 airtable-verification=6ae90a183923b17d9f1c76e90e31b4e4 00Dic0000004zXx=1TBic00000000Hl airtable-verification=6deae5f718f685ac8c8c3c37418aafcf 00DVG000007ihZt=1TBVG0000000Ldx anthropic-domain-verification-rrhf1p=E3SBrctYaemDvHQIrJbKWafVN google-site-verification=zwyVSZ2CSXXUndqTu5itEDFvp58bOFVBPAbtrIondBU google-site-verification=hIsj3ke1PYviQQm1ig-VMAlmA07GWc5vYeh2qJT56OA dtm-domain-verification=U4YHHpTmifZuKJsMSf78n0k8thskhr3Adq69T8e8NcM SFMC-6lLIlwvbCaTM80Tq1R1zsnKi9CqM3R6ZPPvoE6sK 00Dic0000004dh7=1TBic00000000Cv jamf-site-verification=YL4ixnZvLipoTrfg2RUwsg onetrust-domain-verification=8433a91efd67e3c2eacfc75979dd5b42e209042e4a5d4dc96725c6b273ac49de amazonses:7IodrIPH40wdjQxliaAOOqSX8rn4q7lSiSvuFZPwUnY= airtable-verification=13ac52fb202035dbad35b0ab24e598b4 D4CE65761A88C03EE2E9841BFF6B8AF0 airtable-verification=7cdd67720483f4801fc65d998968476e 00Ddy000003GfFB=1TBdy0000000Dzl 482958E678D10FD3AD1F737F78E8519B h1-domain-verification=aV4vQvSRHvQxGhvdz29L2ozsKDTReL7qKDgdjhPgzA5E7UC6 00DcY000007nqhN=1TBcY00000007mH sending_domain1097582=7dcf00de01f5fc8307de59194e0a8b462cbfa2b5e32d35bfc9e5269b93dca7a6 vmware-cloud-verification-2abfb849-6039-461b-aa8b-eee2629dd6e4 airtable-verification=94cdd68161a8e41e92cc5dd7abde8eae airtable-verification=0a746053a028476f6d1671cbc9016585 00Ddx000003sGMD=1TBdx0000000F0f brevo-code:033215cd835c1e9ddc21dfb479c54b76 pexip-ms-tenant-domain-verification=3f0ac106-a365-4d3b-9fb9-2a124f04d0b6 Sendinblue-code:bde1f306529e82fd2ccf9857fc09aa98 google-site-verification=n-cl_O68vbC-_UmufTZMmLLQb9wKnuUo-4FPom4m3iA google-site-verification=XBIgNMnjRT9eOchFldQx7rsHG9ROchX682SfSM0_1lE v=spf1 ip4:171.67.219.64/27 ip4:171.67.224.0/28 ip4:171.67.43.137 ip4:171.67.43.138 ip4:171.67.43.139 ip4:171.67.43.140 ip4:171.67.43.141 include:_spf.google.com include:_spf.qualtrics.com include:icpbounce.com include:spf.protection.outlook.com ip4:148.163.149.245 ip4:148.163.153.235 ip4:148.163.135.119 ip4:148.163.139.119 ip4:67.231.149.169 ip4:67.231.157.125 ip4:67.231.152.67 ip4:208.84.65.155 ?all wiz-domain-verification=2957e22f41cc73b19d44177ecf39bd1a1926a1e6362011b8f83e65aab5d6ef1a autodesk-domain-verification=pXMpLf7JP-86kN9Zt5jI 3VCR5VZOJKXDX3AFKS202RQVEDHPD1WB04T0QNAB TAILSCALE-scyG2dkta4GC30jIuPOW 00D46000000qFgG=1TBVH0000000Ak9 atlassian-domain-verification=C9ho3V/RWWifTCqh8sF3L0PI7jVZWAL9dCxVL1gzJvr6SYJCKBQ8nCX38z50vRQ6 google-site-verification=JM6F1JtgpITjPAatlXWl2mpzq_zobtnQEwKsbGA0DIk airtable-verification=22e64691170fba22a576b309bf587b87 onetrust-domain-verification=2983144927f6450ea12b5557b2080dae remarkable-domain-verification=d359b4b2-89f8-46f3-862a-6008b632497b bwZknJMLNV1XuaJAyUmKlAFrdZo+p5yDlTNACmDUWhgtyihfJc8oWMnK7hWLreN+ozU3mX91yHHzZx0adJPPPg== pardot884873=1b7cebffc22a290049b6710c0620e741a3f4d3a720196287a95816f9afaa7695 neat-pulse-domain-verification-9X4x1kX=3f8a8c19-1634-41e7-8511-4587459ff713 google-site-verification=p4uNfSaD7r |
| valid | yes |
|---|---|
| issuer | Internet2 |
| covers | stanford.edu, *.stanford.edu, web.stanford.edu, www-v6.stanford.edu |
| protocol | TLSv1.2 |
Domain is properly signed — chain validated by an independent validating resolver
| SPF | warning v=spf1 ip4:171.67.219.64/27 ip4:171.67.224.0/28 ip4:171.67.43.137 ip4:171.67.43.138 ip4:171.67.43.139 ip4:171.67.43.140 ip4:171.67.43.141 include:_spf.google.com include:_spf.qualtrics.com include:icpbounce.com include:spf.protection.outlook.com ip4:148.163.149.245 ip4:148.163.153.235 ip4:148.163.135.119 ip4:148.163.139.119 ip4:67.231.149.169 ip4:67.231.157.125 ip4:67.231.152.67 ip4:208.84.65.155 ?all |
|---|---|
| DMARC | pass policy quarantine |
| DKIM | found: default, k1, s1, s2, mail, resend |
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 stanford.edu.
Reference: /llms.txt.
Watch stanford.edu. 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