ithaka.org

Observed Jul 21, 2026, 17:12 UTC (2d 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.

Verify this receipt yourself + Watch this domain

Up right now

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesFigmaAtlassianFacebook/MetaGoogle Search Console

1 subdomain · tranco_100k

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

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

ithaka.org

A / AAAA

23.185.0.2

unattributedserves the site

usnjpr2ns04.ithaka.orgusnyny1ns05.ithaka.orgusaeaz1ns03.ithaka.orgusaeaz1ns05.ithaka.org+3 more

ithaka.organswers its DNS

ithakaHarbors-org.mail.protection.outlook.com

Microsoft 365receives its email

TLS

ithaka.org

Let's Encryptissued its certificate

DNS Records

A 1

23.185.0.2

MX 1

10ithakaHarbors-org.mail.protection.outlook.com

TXT 22

r10cfhrm9fnotlarrfoktvtvhp
_globalsign-domain-verification=B57sRQpmte4G4w-gavZbVNmmNsMxGp5kcL19UP2599
v=spf1 mx include:spf.protection.outlook.com include:u1397501.wl.sendgrid.net include:mail.zendesk.com include:_spf.salesforce.com ~all
figma-domain-verification=d56d10e13250e9953337f1e3a28d52806e1403b8ff9ca377462039668ea69f28-1731339603
zoho-verification=zb15637450.zmverify.zoho.com
openai-domain-verification=dv-DNnxj5IUUN3uFd8pZxkI2wgn
a9d7eqqjpbg5e5g4hd3ep6trd2
sending_domain1053043=b3f84e44c2a759b6996015a7744e5ffa2de3eb68646182dd4ff99d4a282dd4f2
atlassian-domain-verification=asBLg5rZcczG0c5tehrhXNo3ALZKQ0Mpa7awcxZauMs9ST0cBPtJDJcuWBYqMP80
jamf-site-verification=OhQ1FJFf6tKYCTHhb9Q6cA

NS 7

usnjpr2ns04.ithaka.org
usnyny1ns05.ithaka.org
usaeaz1ns03.ithaka.org
usaeaz1ns05.ithaka.org
usnjpr2ns01.ithaka.org
usnjpr2ns02.ithaka.org
usmiaa1ns03.ithaka.org

SOA 1

usnjpr2ns02.ithaka.org hostmaster.ithaka.org

SRV 4

ygg2.vp.vc:5060 p50
ygg1.vp.vc:5060 p10
ygg1.vp.vc:5061 p10
ygg2.vp.vc:5061 p50

TLS Certificates (3)

Common Name	Issuer	Expires
`ithaka.org`	C=US, O=Let's Encrypt, CN=YR1	Thu, 24 Sep 2026 16:13:20 +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 (1)

www.ithaka.org

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 ithaka.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_d3c6388dcd5fd641
Output Hash: 82519dc25c47e3ee225358f57de5a1cd9761a61c8da77f0d3d5230600abeaf73
Signature: ed25519:cd771bcae84c7dc477839ef1ebf7fb02aaa0be1827d19245e5480500b43f0c971cdc674b6672666e22daa8cb4a228b59b7b39d2980eeebcd4db03e83ff435d0d
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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