stsci.edu — September 2026 traffic, keywords & AI visibility

stsci.edu draws an estimated 65,900 visits a month from search engines. Effectively all of it is organic — about 65,900 visits from unpaid results. Spread across 3,394 ranking keywords, that averages roughly 19 organic visits per keyword.

On our AI visibility scale stsci.edu earns 85 of 100 points, a grade A. It takes full marks for LLMS.txt and Structured data. The biggest gap is Crawlability, at 0 of 10 points (robots ✗ · sitemap ✗), worth 10 points if closed. It also loses points on Company profile (22/25) and SEO health (18/20).

The llms.txt on stsci.edu runs to 155 lines (7,549 characters) across 12 sections, last generated in April 2026. It introduces the site as "Space Telescope Science Institute". It tells AI engines the business works in Astronomy, Space Exploration and Scientific Research. It describes 4 products, with prices such as Hubble Legacy Archive at Free, JWST Pipeline Software at Free and MAST Discovery Portal at Free. Services it lists include Telescope Proposal Support, Data Calibration Services, Scientific Computing Resources and Education and Outreach. The audience it names is Researchers, educators, students, public, aged All ages (Global). Technologies it mentions include HTTPS, Python, AstroPy, Jupyter Notebooks and Custom Data Pipelines. The keywords it claims start with "space telescope science", "Hubble Space Telescope", "NASA telescope missions" and "exoplanet discovery". It gives the company type as Non-profit.

# Space Telescope Science Institute

## About
The Space Telescope Science Institute (STScI) is a leading research institute dedicated to space astronomy. It operates the science programs for NASA's Hubble Space Telescope and James Webb Space Telescope. STScI processes, archives, and distributes astronomical data to scientists worldwide. The institute supports proposal selection and observation planning. It develops software tools for data analysis and visualization. STScI engages in public outreach and education initiatives. Its archives contain petabytes of high-resolution space images. The team collaborates with NASA, ESA, and global astronomers. STScI drives discoveries in exoplanets, galaxies, and cosmology. It provides training workshops and resources for researchers. The institute maintains telescope calibration and performance. STScI's work enables transformative science from space observatories. It hosts virtual observatories and data challenges. The organization promotes diversity in STEM fields. STScI's expertise spans telescope technology and imaging techniques. It disseminates news on NASA discoveries. The institute supports space science careers through programs. STScI ensures data accessibility for all users. Its contributions shape our understanding of the universe. Overall, STScI is pivotal in advancing space telescope science.

**Areas of Work:** Astronomy, Spa

Google lists stsci.edu for about 3,394 keywords, which together bring an estimated 65,900 organic visits a month.

The latest technical audit of stsci.edu scored 88 out of 100 overall. Performance is its weakest area at 64, while accessibility scores highest at 100. The audit makes 12 recommendations in all, and 4 of the 4 listed first are rated high priority or critical.

Space Telescope Science Institute's company profile names https://nasa.gov, https://hubblesite.org, https://spacetelescope.org and https://esa.int as competitors. Its own llms.txt adds https://jpl.nasa.gov and https://astronomy.com. Outside its market, the domains ranked closest to it in our worldwide ranking are 7sur7.be, stopblocking.co.uk, mailenable.com and wildred.tv.

https://nasa.gov

https://hubblesite.org

https://spacetelescope.org

https://esa.int

https://jpl.nasa.gov

https://astronomy.com