On no blocklists we checked, valid HTTPS, the site answered 200 in 104 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 23.49.179.66 |
|---|---|
| AAAA | 2600:1408:c400:795::255e 2600:1408:c400:791::255e |
| MX | 100 mit-edu.mail.protection.outlook.com |
| NS | asia1.akam.net usw2.akam.net use2.akam.net ns1-37.akam.net eur5.akam.net use5.akam.net ns1-173.akam.net asia2.akam.net |
| TXT | e2ma-verification=piiib include:4920340.spf07.hubspotemail.net openai-domain-verification=dv-pavuNIk1XG88x99BoqSFI0Zs adobe-idp-site-verification=0817e32603f0dda03188b9f1f3bbaf4f754c5322926036af8890df7bf65cb90d amazonses:asyYfDTQj+TCy9t5jFbakgwGbomDqXREEs3KdC0iMQE= E2MA-VERIFICATION=MONGB 87EDC6C34B18248C3196DDDF99E346F0 airtable-verification=4283ac2aa983e97636807d478d6bf30c 6B22D05A50CCFD8AEDE263D10A43B5F2 atlassian-domain-verification=3eRva0Gy/EjVyKEw46uExfEXpDGJfhwocwVCy5NTxcPpf89AqdK3Lkc2Ert/Mram e2ma-verification=uviib pardot_310211_*=a4e9728d1b90355b6240f4d7778cc4da11c10a20552ae99e6ed03d8e48c06583 atlassian-domain-verification=maRNLIMivtdhvCr9JoVuLKHWRn7mZOY8072lyRNeyamz0NHc/s0b0m3R3yt1NKK3 mandrill_verify.28vVgPhRZLda1o_v90CPWg E2MA-VERIFICATION=86JGB *fastly-domain-delegation-hnb9joooe7gojgqu4eth-00494769-2025-08-23 google-site-verification=qNAffaSjUkhb2JCBb1BQ2nXAkcNYLeLc7G6vjMRD1js bWl0ZWR1 ecgkc7fnflsm01hh6uqjr86h02 anthropic-domain-verification-4zkzdh=QhN4rrjaqMvpem4OLpNCpsSJP 1VNZ334aKc8FypCKDhIMOQBsKFd8gCgTFQuPlDwQfzPNxPCKonTOnhuFQ8+kE32E2TgkBiOp9EFab5nfVc+38g== jamf-site-verification=Zb92YEBOKGMV1yFAEtYd1w airtable-manual-domain-verification=ce83c94e-0127-4fd3-9265-3b37a46a7b8a v=spf1 include:_s00430413.autospf.email -all e2ma-verification=xlabb airtable-verification=46ae122907d40a1413b6a05898774435 E2MA-VERIFICATION=8AWBB mgverify=2a07014ab707abf9b6f984210c05ef7a1fd905296aebe173776844c14db61c1e atlassian-domain-verification=3Ex0JUvwojvbDLOJvNHnYUFEZCF+kwii0OjHbhDkymB97xpCOkkIFUoET2RQy15E e2ma-verification=oiiib e2ma-verification=xiiib E2MA-VERIFICATION=C8D4 google-site-verification=pqf9o422iIeT7mzfZmQwkpLYH3VTlB05OC9c_OncFOg google-site-verification=6ethhhET4cfz7L1Dfve9bCOTAqMr6IU79Va6gb8HxlA stripe-verification=fe726543b783764b2ba9137f4e675faa0709416ac7a5d9f50e21248a706ad93d asv=d035bbd54ef96bf2ffd1479e55ae0860 E58E872724E5FA64C802DD4A74C404BC airtable-verification=c8040e640f7deab69a01d68c91893e07 airtable-verification=dd819f16a069eee2e4e6cc433b24e9e5 google-site-verification=b4-1loZHD1WzNmews_hsTTKL__gLblD6iKBFbA4j97c |
| valid | yes |
|---|---|
| issuer | DigiCert Inc |
| covers | web.mit.edu, alum-dev.mit.edu, alum.mit.edu, climate.mit.edu, commencement.mit.edu, emergency-dev.mit.edu, events-static.mit.edu, giving-dev.mit.edu, giving.mit.edu, hr.mit.edu, img.mit.edu, ist.mit.edu |
| protocol | TLSv1.2 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 include:_s00430413.autospf.email -all |
|---|---|
| DMARC | warning policy none |
| DKIM | found: google, selector2, k1, s1, s2 |
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 mit.edu.
Reference: /llms.txt.
Watch mit.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