massart.edu
Observed Aug 16, 2026, 13:14 UTC (19h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Up right now
Email byGoogle Workspace
Google WorkspaceSecured byLet's Encrypt
Let's EncryptAlso usesJamfOpenAI
Jamf
OpenAIIPv6 · 5 subdomains · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for massart.edu in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.
INFRASTRUCTURE MAPwhat massart.edu actually stands on - every host below is a signed observation
massart.edu
A / AAAA
23.185.0.12620:12a:8001::12620:12a:8000::1
2620serves the site
NS
ns-1236.awsdns-26.orgns-1943.awsdns-50.co.ukns-377.awsdns-47.comns-611.awsdns-12.net
awsdns-26.org + awsdns-50.co.uk + moreanswers its DNS
MX
aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
alumni.massart.edu
Let's Encryptissued its certificate
DNS Records
A 1
23.185.0.1
AAAA 2
2620:12a:8001::12620:12a:8000::1
MX 5
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 5
2529E0C941A05A8705370B73EB48958DBEE4C1FD0D0A4821529E7FC0975A2F3Ejamf-site-verification=uZfkVtFxmOemcVnRZU3pGgopenai-domain-verification=dv-umZzBflmyu8Qz3sAA4hODMCOv=spf1 ip4:69.43.98.0/24 ip4:12.228.6.215 ip4:69.43.75.15 include:_spf.salesforce.com include:cust-spf.exacttarget.com include:_spf.google.com ~all
NS 4
ns-1236.awsdns-26.orgns-1943.awsdns-50.co.ukns-377.awsdns-47.comns-611.awsdns-12.net
SOA 1
ns-1236.awsdns-26.org burfeind.massart.edu
DMARC_RECORDS 1
v=DMARC1; p=none; rua=mailto:dmarc-group@massart.edu; ruf=mailto:dmarc-group@massart.edu
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
alumni.massart.edu |
C=US, O=Let's Encrypt, CN=YR1 | Wed, 28 Oct 2026 13:58:12 +0000 |
YR1 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (5)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_731eb585deabf9b8- Output Hash
aa2f0db5fc5dfe527dc896576b7c4edc2d1361a9aa019ae0ec05a7713247766c- Signature
ed25519:1fd3d0f1eb32a2df3099d1b6b3f7f4a28306ff86437c8f98cfeace3ba2de13ee1aa33a55c5320a787c7a6d14cc4e50c8cca745c52a9cba69f645862fd6844c0d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast