www.eso.org
Registered
Page analyze update date:
2026/02/01 21:10:09
Last whois update date:
2026/06/16 01:18:16
Domain Status
Registered
Paid till
07.02.2031
Available from
09.03.2031
×
![Fullscreen website screenshot]()
www.eso.org Website screenshot
SEO Score
52.74%
77
Score achieved
146
Maximum score
Main Information
Title: ESO
Description: ESO, European Organisation for Astronomical Research in the Southern Hemisphere
Keywords: unknown
Page Encoding:
utf-8
Page Filesize: 193 KB
Server Information
IP: 134.171.75.1
Location: Germany,DE,Garching,85748,48.255,11.6551,Europe/Berlin
Http Server: nginx/1.20.1
Encoding: utf-8
Meta Tags List
- charset: utf-8
- equiv: X-UA-Compatible content: IE=edge
- name: viewport content: width=device-width, initial-scale=1
- name: robots content: index,follow
- name: author content: [email protected]
- name: description content: ESO, European Organisation for Astronomical Research in the Southern Hemisphere
- name: keywords content: ESO, eso.org, Astronomy, Astrophysics, Astronomie, Suedsternwarte, telescopes, detectors, comets, planets, stars, galaxies, nebulae, universe, NTT, VLT, VLTI, ALMA, ELT, La Silla, Paranal, Garching, Chile
- name: statvooVerification content: f546f5bccd3fb7f8c5d8e97c6beab814
- name: twitter:card content: summary
- name: twitter:site content: @ESO
- name: twitter:creator content: @ESO
- property: og:title content: ESO — The European Southern Observatory
- property: og:description content: Welcome to the most powerful astronomical observatories in the world.
- property: og:image content: https://cdn.eso.org/images/screen/uhd_yuri_alma_ant_cc.jpg
- property: og:image:secure_url content: https://cdn.eso.org/images/screen/uhd_yuri_alma_ant_cc.jpg
Internal Links
External Links
Whois Information
domain_name: eso.org
update_date: 2025-11-20T18:41:47.926Z
update_time: 1763664107
creation_date: 1991-02-06T05:00:00.868Z
creation_time: 665816400
expiration_date: 2031-02-07T05:00:00Z
Whois Raw Data
Domain Name: ESO.ORG
Registrar: Key-Systems GmbH
Domain Status: client transfer prohibited
Registry Expiry Date: 2031-02-07T05:00:00Z
Creation Date: 1991-02-06T05:00:00.868Z
Updated Date: 2025-11-20T18:41:47.926Z
Name Server: DNSSLAVE1.HQ.ESO.ORG
Name Server: DNSSLAVE2.HQ.ESO.ORG
Name Server: DNSSLAVE1.SC.ESO.ORG
Name Server: DNSSLAVE2.SC.ESO.ORG
REGISTRAR Contact: Key-Systems GmbH
>>> Last update of RDAP database: 2026-06-16T01:18:16Z
Robots.txt
# $Id: robots.txt,v 1.19 2017/05/23 17:35:51 web Exp web $
# robots.txt for http://www.eso.org/
User-agent: *
# CQ start
Disallow: /libs
Disallow: /apps
# CQ end
Disallow: /sci/php/redirect.html
Disallow: /public/redirect.html
Disallow: /intra/redirect.html
Disallow: /images/staff
Disallow: /sci/activities/projects/eis/bin
Disallow: /secure
Disallow: /casalma
Disallow: /almaaqua
Disallow: /wiki
Disallow: /projects/alma/arc/tw
#Disallow: /bin/getphone
Disallow: /*confidential/*
Disallow: /public/about-eso/committees/cou
Disallow: /public/about-eso/committees/cc
Disallow: /public/about-eso/committees/fc
Disallow: /public/about-eso/committees/opc
Disallow: /public/about-eso/committees/stc
Disallow: /public/about-eso/committees/uc
Disallow: /public/about-eso/committees/vc
Disallow: /projects/esocal/cs/
Disallow: /projects/esocal/esocal
#TWikis
Disallow: /*/bin/WebSearch
Disallow: /*/bin/WebChanges
Disallow: /*/bin/WebNotify
Disallow: /*/bin/login
Disallow: /*/bin/attach
Disallow: /*/bin/changes
Disallow: /*/bin/configure
Disallow: /*/bin/edit
Disallow: /*/bin/geturl
Disallow: /*/bin/installpasswd
Disallow: /*/bin/login
Disallow: /*/bin/logon
Disallow: /*/bin/logos
Disallow: /*/bin/mailnotify
Disallow: /*/bin/manage
Disallow: /*/bin/oops
Disallow: /*/bin/passwd
Disallow: /*/bin/preview
Disallow: /*/bin/rdiff
Disallow: /*/bin/rdiffauth
Disallow: /*/bin/register
Disallow: /*/bin/rename
Disallow: /*/bin/resetpasswd
Disallow: /*/bin/rest
Disallow: /*/bin/save
Disallow: /*/bin/savemulti
Disallow: /*/bin/search
Disallow: /*/bin/setlib.cfg
Disallow: /*/bin/statistics
Disallow: /*/bin/testenv
Disallow: /*/bin/twiki
Disallow: /*/bin/upload
Disallow: /*/bin/viewauth
Disallow: /*/bin/viewfile
# icons etc
# Disallow: /gif/
# Disallow: /icons/
# Disallow: /images/
# too many files
Disallow: /it/facilities/Unixhelp
Disallow: /it/manuals
Disallow: /it/scisoft/star
Disallow: /observing/dfo/status
# internal
Disallow: /projects/alma/faqs
Disallow: /webproject/
Disallow: /sci/facilities/paranal/sciops/team_only/
Disallow: /paranal/sciops/team_only/
Disallow: /2007/intra
Disallow: /intra
Disallow: /sdd
# other
User-agent: WebCopier
Disallow: /
# Yahoo
User-agent: puf
Disallow: /
SEO Audit
Technical SEO
✓
Response Code
200
Status 200 OK - page loads correctly.
✓
Character Encoding
Page: utf-8, Header: utf-8
Character encoding consistent between HTML and headers.
✓
Page Size
198381 bytes
Page size acceptable for fast loading.
!
Resources
69 total
Too many resources. Optimize and combine files for better performance.
✓
Hreflang Tags
23 hreflang tags
Hreflang tags found for multilingual SEO.
✓
Robots.txt
Exists
Robots.txt file found.
!
Sitemap
Not found
Add sitemap.xml and reference it in robots.txt.
✓
HTTPS
Yes
Secure HTTPS connection enabled.
✓
Compression
gzip
Gzip or Zstd compression enabled for faster loading.
!
Caching
Not set
Add cache-control headers to improve loading speed for returning visitors.
✓
Page Speed
3.26 ms
Excellent loading speed.
On-Page SEO
!
Title
ESO
Title too short. Expand to 30-60 characters for better SEO.
!
Meta Description
ESO, European Organisation for Astronomical Research in the Southern Hemisphere Lenght:79
Meta description too short. Expand to 100-160 characters.
!
H1 Heading
5 found - "Our Stories"
Use only one H1 heading per page. Remove extra H1 tags.
✓
Word Count
1152
Good content length (500-2000 words recommended).
!
Canonical Tag
Add canonical tag to prevent duplicate content issues.
✓
Duplicate Meta
[]
No duplicate meta tags found.
✓
Keywords
Meta keywords are optional (not used by major search engines).
Content and UX
✓
Language
en
Language attribute properly set.
!
Images
29 total, 2 missing ALT
Add ALT text to images for accessibility and SEO.
✓
Viewport
width=device-width, initial-scale=1
Viewport meta tag properly set for mobile devices.
!
Open Graph
Missing: og:url
Add missing OpenGraph tags for social media sharing: og:url
!
Structured Data
0 JSON-LD scripts
Add structured data (JSON-LD) for rich snippets and better SEO.
Positions in Google
Search Phrases - Google
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 1 | /~ndelmott/url_encod... | ||
| 2 | /public/ | ||
| 2 | /~ndelmott/Publi/SAF... | ||
| 2 | /public/teles-instr/... | ||
| 3 | /~ndelmott/Publi/SAF... | ||
| 4 | /~ndelmott/url_encod... | ||
| 4 | /public/teles-instr/... | ||
| 4 | /public/teles-instr/... | ||
| 4 | /~ndelmott/Publi/SAF... | ||
| 4 | /public/ |