eso.org

Observed Jul 24, 2026, 18:16 UTC (8d 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

Runs onEuropean Southern Observatory

Email byMicrosoft 365

Secured byHellenic Academic and Research Institutions CA

Registered withKey-Systems GmbH

Also usesGoogle Search Console

52 subdomains · tranco_20k

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

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

eso.org

A / AAAA

134.171.75.1

European Southern Observatoryserves the site

dnsslave1.hq.eso.orgdnsslave2.hq.eso.orgdnsslave1.sc.eso.orgdnsslave2.sc.eso.org

eso.organswers its DNS

eso-org.mail.protection.outlook.com

Microsoft 365receives its email

TLS

www.eso.org

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

134.171.75.1

MX 1

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

TXT 12

google-site-verification=QSkhr8v4m0uSSMqPUsZ05Pmla3_xgrBO_pMY5ZsjTIY
fc0509e688cefd638caf6699d4112b50978229f808715ce2ab
google-site-verification=42STXdibM2OWALosfjc5uk4o9q8_ZUTYtMniIgWmBs0
MS=ms14993896
jamf-site-verification=tcqgqvnDkbUg5zDue830CA
apple-domain-verification=NqSEBIFXGUTBfcfp
v=spf1 a:web-app-01.inriva.com ip4:85.184.250.78 include:mail.infrastructure.servers.ptfse.net include:servers.mcsv.net include:spf.protection.outlook.com include:spf_c.oraclecloud.com ip4:134.171.8.115 ip4:134.171.8.120 ~all
autodesk-domain-verification=kxQmuQwAneo4Gb9Go5Na
zr9W1tIwY2CIMCuH7FeI4CQqbbMUGAwWGci3CohpHbSGEv2Pa3S7Vv55j2gEMaGHxHnLXUg+WDebArMVjccZiw==
cisco-ci-domain-verification=54ef0413fbaa4879bfce2916c97ec6bf316d462a9e9cd92413984c18318d9451

NS 4

dnsslave1.hq.eso.org
dnsslave2.hq.eso.org
dnsslave1.sc.eso.org
dnsslave2.sc.eso.org

SOA 1

dnsslave1.hq.eso.org hostmaster.eso.org

SRV 5

expressway.sc.eso.org:5060 p10
expressway.hq.eso.org:5060 p1
expressway.sc.eso.org:5061 p10
expressway.hq.eso.org:5061 p1
email.eso.org:443 p0

TLS Certificates (3)

Common Name	Issuer	Expires
`www.eso.org`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Thu, 08 Oct 2026 08:19:23 +0000
`GEANT TLS RSA 1`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=HARICA TLS RSA Root CA 2021	Sat, 31 Dec 2039 11:14:59 +0000
`HARICA TLS RSA Root CA 2021`	C=GR, L=Athens, O=Hellenic Academic and Research Institutions Cert. Authority, CN=Hellenic Academic and Research Institutions RootCA 2015	Fri, 31 Aug 2029 07:41:54 +0000

Subdomains (52)

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

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

Ed25519 Receipt

Receipt ID: rcpt_a3e3f85ef4e8cc82
Output Hash: 7dc0bfd136535b6ed02cc3a628ff63a309c2500958ddc49ef14ae188aaa0301b
Signature: ed25519:dcf62dda837e5affb0cdf20ac4640ec3150dbaa0b815faa8dabded37dc0d58bb559263ea95c5aa6966f133b1fe3860a783ed5994035e5c37c42d5c6cb24e1b0b
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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