eso.org

.org toplist crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 2655 ms crawled 2026-05-18

DE · 134.171.75.1 · AS2117 European Southern Observatory

Reputation 89/100 weak security headers dmarc monitor-only

sector nonprofit type homepage

HTML metadata

Title

ESO

Description

ESO, European Organisation for Astronomical Research in the Southern Hemisphere

Language

Translations

cs
da
de
de-at
de-be
de-ch
en-au
en-gb
en-ie
es
es-cl
fi
fr
fr-be
fr-ch
it
it-ch
nl
nl-be
pl
pt
sv

Feeds

Open Graph

title: ESO — The European Southern Observatory
description: Welcome to the most powerful astronomical observatories in the world.

Technology

Server: nginx
CMS: Gatsby

Third-party hosts loaded (2)

feeds.feedburner.com×3
mastodon.social×1

Social

Contact

Email

information@eso.org

Registration

Registrar

Key-Systems GmbH

Created

1991-02-06

Expires

2031-02-07 1724 days left

Updated

2025-11-20

Name servers

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

DNS records live

NS

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

MX

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

TXT

Show 10 TXT records

cisco-ci-domain-verification=54ef0413fbaa4879bfce2916c97ec6bf316d462a9e9cd92413984c18318d9451
autodesk-domain-verification=kxQmuQwAneo4Gb9Go5Na
apple-domain-verification=NqSEBIFXGUTBfcfp
MS=ms14993896
adobe-idp-site-verification=0288fe76f2783415b251fcbd6e53c4e2cb945df670c1acb5ff4828bf13163659
zr9W1tIwY2CIMCuH7FeI4CQqbbMUGAwWGci3CohpHbSGEv2Pa3S7Vv55j2gEMaGHxHnLXUg+WDebArMVjccZiw==
google-site-verification=QSkhr8v4m0uSSMqPUsZ05Pmla3_xgrBO_pMY5ZsjTIY
jamf-site-verification=tcqgqvnDkbUg5zDue830CA
fc0509e688cefd638caf6699d4112b50978229f808715ce2ab
google-site-verification=42STXdibM2OWALosfjc5uk4o9q8_ZUTYtMniIgWmBs0

Email authentication partial

SPF

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 ip4:134.171.8.115 ip4:134.171.8.120  ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:postmaster@eso.org; ruf=mailto:postmaster@eso.org; sp=none; ri=86400

policy: none (monitoring only) · sp=none

DKIM

k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…

selectors probed

Certificate (current)

GEANT TLS RSA 1

from 2025-10-08 to 2026-10-08

Expires in 141 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://www.eso.org/public/

present

strict-transport-security

findings

short HSTS max-age
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=60;