eso.org — September 2026 traffic, keywords & AI visibility

Search engines send eso.org an estimated 146,100 visits a month. Effectively all of it is organic — about 146,100 visits from unpaid results. Spread across 11,000 ranking keywords, that averages roughly 13 organic visits per keyword.

eso.org scores 89 out of 100 on our AI visibility scale, grade A. It takes full marks for LLMS.txt and Structured data. The biggest gap is Crawlability, at 5 of 10 points (robots ✓ · sitemap ✗), worth 5 points if closed. It also loses points on Company profile (22/25) and SEO health (17/20).

The llms.txt on eso.org runs to 141 lines (6,245 characters) across 12 sections, last generated in February 2026. It introduces the site as "European Southern Observatory (ESO)". It tells AI engines the business works in Astronomy, Research and Technology. It describes 3 products, with prices such as Data Archive Services at Free for academic use, Contact for commercial pricing. Services it lists include Telescope Access Programs, Astronomical Data Analysis Support and Educational Outreach. The audience it names is Scientists, Researchers, Students, Astronomy Enthusiasts, Educational Institutions, aged All ages (Global). Technologies it mentions include Python, JavaScript, Cloud Infrastructure, Data Analytics Tools and Custom Software for Astronomy. The keywords it claims start with "astronomy", "telescope", "space research" and "astrophysics". It gives the company type as Public and says it is hiring.

# European Southern Observatory (ESO)

## About
The European Organisation for Astronomical Research in the Southern Hemisphere (ESO) is a leading intergovernmental organization dedicated to advancing astronomical research. ESO operates some of the world's most advanced telescopes, providing scientists with unparalleled access to data and resources. With a mission to foster international collaboration, ESO plays a pivotal role in expanding our understanding of the universe through innovative technology and research.

**Areas of Work:** Astronomy, Research, Technology

## Things to Remember
- **Website:** https://eso.org
- **Address:** Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany
- **Contact:** [email protected]
- **Phone:** +49 89 32006-0
- **Hours:** Mon-Fri: 9AM-5PM
- **Timezone:** Europe/Berlin
- **Currency:** EUR
- **Company Type:** Public
- **Employees:** 300 employees
- **Revenue:** Not Disclosed
- **Hiring Status:** Yes, actively hiring

## Products
- **Astronomical Observations** (Contact for pricing): Access to data and observations from ESO's world-class telescopes for research purposes.
- **Data Archive Services** (Free for academic use, Contact for commercial pricing): Comprehensive archive of astronomical data for researchers and institutions worldwide.
- **Research Grants and Collaborations** (Contact for details): Funding and collaborative opportuniti

Google lists eso.org for about 11,000 keywords, which together bring an estimated 146,100 organic visits a month.

The latest technical audit of eso.org scored 78 out of 100 overall. Performance is its weakest area at 59, while SEO scores highest at 83. The audit makes 12 recommendations in all, and 3 of the 4 listed first are rated high priority or critical.

European Organisation for Astronomical Research in the Southern Hemisphere's company profile names nasa.gov, esa.int and hubble.org as competitors. Its own llms.txt adds space.com, sciencedaily.com and astronomy.com. Outside its market, the domains ranked closest to it in our worldwide ranking are holahupa.com, mynewsdesk.com, standardnotes.com and myharmony.com.

nasa.gov

esa.int

hubble.org

space.com

sciencedaily.com

astronomy.com