collegeboard.com
Observed Jul 18, 2026, 13:46 UTC (21h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onAmazon
Email byProofpoint
Secured byLet's Encrypt
Registered withSafeNames Ltd.
Also usesGoogle Search Console
tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat collegeboard.com actually stands on - every host below is a signed observation
collegeboard.com
A / AAAA
13.248.160.13776.223.34.124
Amazonserves the site
NS
ns-1033.awsdns-01.orgns-1997.awsdns-57.co.ukns-354.awsdns-44.comns-684.awsdns-21.net
awsdns-01.org + awsdns-57.co.uk + moreanswers its DNS
MX
mxa-004a7c01.gslb.pphosted.commxb-004a7c01.gslb.pphosted.com
Proofpointreceives its email
TLS
collegeboard.com
Let's Encryptissued its certificate
DNS Records
A 2
13.248.160.13776.223.34.124
MX 2
10mxa-004a7c01.gslb.pphosted.com10mxb-004a7c01.gslb.pphosted.com
TXT 5
0rqgtpxszfhtncqlmlsqppgtcywykvdg96sr80ns88j2tc4yc4pb26lhhzq62779google-site-verification=3Ro3su8kTVVbC-S8XHdmQ-MVEq5ce654Jo5gsQaodAov=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -allv=DMARC1; p=reject; fo=1; adkim=s; aspf=s; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
NS 4
ns-1033.awsdns-01.orgns-1997.awsdns-57.co.ukns-354.awsdns-44.comns-684.awsdns-21.net
SOA 1
ns-1033.awsdns-01.org awsdns-hostmaster.amazon.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
collegeboard.com |
C=US, O=Let's Encrypt, CN=YR2 | Sun, 27 Sep 2026 01:21:58 +0000 |
YR2 |
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 (0)
None observed.
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; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
6c0eaa7e-321f-4720-aebf-3a9c8fe3d889- Output Hash
2178470c76054e5eb0aa1b69cb22b542edd27bb61274a5c51f9ce8a922806518- Signature
ed25519:b10428abc2487fe97abe0f38c144c24b0c64843c3f2d268b30acf8c2515c2519292c99d09c5486bc41434754a854e6a788ab9da2ac7b7974e6e3af43b12ccb0a- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast