kastatic.org

Observed Jul 17, 2026, 13:35 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding

Signed observation on record.

Also usesGoogle Search Console

tranco_20k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat kastatic.org actually stands on - every host below is a signed observation

kastatic.org

ns-1266.awsdns-30.orgns-1840.awsdns-38.co.ukns-391.awsdns-48.comns-568.awsdns-07.net

awsdns-30.org + awsdns-38.co.uk + moreanswers its DNS

DNS Records

TXT 8

_globalsign-domain-verification=MK_ZKmss4D_DdzGOsssHxxBOK6hJc6LGycFvNOESdZ
_globalsign-domain-verification=nx5U56FiDUqhsckpguh1BWVo8oJVRsFtwCfGxdBN4e
_globalsign-domain-verification=xfkrv3yRwA5GGm0E4l5RlcNKTqVD8KAYsYdCYTBMF0
globalsign-domain-verification=qV_5Us2mt6FO1Ig5hnG4kYHESYAxuH5-qZ0cRXC-Ig
google-site-verification=JoLW8ZHgfcz_OUNGSAdmlKT813CNCdMigwHHmq3ZCpE
google-site-verification=U_WV_PYQ-o6OB-hd2ODXETlhe-8EgCo-Ev4n5A3REL0
v=spf1 -all
v=DMARC1; p=reject; aspf=s; ruf=mailto:dmarc-reports@khanacademy.org; rua=mailto:dmarc-reports@khanacademy.org

NS 4

ns-1266.awsdns-30.org
ns-1840.awsdns-38.co.uk
ns-391.awsdns-48.com
ns-568.awsdns-07.net

SOA 1

ns-568.awsdns-07.net awsdns-hostmaster.amazon.com

TLS Certificates (0)

None.

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for kastatic.org. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/kastatic.org">
  <img src="https://domaindrift.io/badge/kastatic.org.svg"
       width="300" height="64" alt="DomainDrift signed observations for kastatic.org">
</a>

Ed25519 Receipt

Receipt ID: c491a424-bff3-4014-84b2-1b7706cda9f6
Output Hash: 1f02a92309caa3e9c5caa742012793b1d562ed79f9e16300927b434216383dc3
Signature: ed25519:40bfcfb2dd295a3ab26817c071de53f2462e75a6302378ed6b5d81ddd919cd1513e2967a416a878f88f0d6ca9da149ae0b4934cbaec1f43f4dc461f0ed9d8909
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/kastatic.org