Gateway to astronomical catalogues
VizieR (u-strasbg.fr) scores 78 out of 100 on Brand Analyzer, placing it in the Brand-Ready tier among Education brands, Technology brands, Other brands, in the 64th percentile of 19946 Education brands.
VizieR is an online astronomical catalogue service operated by the Strasbourg Astronomical Data Center (CDS) in France. It provides astronomers with a curated, searchable repository of published astronomical catalogues and data tables, offering tools such as a Kohonen Self-Organizing Map to help locate and group catalogues by sky region and content. VizieR is widely used by researchers and institutions, including AAS journals, as a trusted resource for accessing comprehensive survey and catalogue data in astronomy.
| Brand Name | VizieR |
|---|---|
| Domain | u-strasbg.fr |
| Industry | Education, Technology |
| Headquarters | Strasbourg, France |
| Parent Company / Owner | Strasbourg Astronomical Data Center |
| Main Competitors | NASA Astrophysics Data System, Mikulski Archive for Space Telescopes (MAST), NASA/IPAC Infrared Science Archive (IRSA), ESO Science Archive Facility, HEASARC |
Moz Domain Authority 67/100 vs category average 48 / leader 99 - a strong backlink profile, so AI systems frequently encounter mentions of the brand.
VizieR has a dedicated Wikipedia entity - a top-weighted signal AI models rely on to identify and describe the brand.
The homepage meta description reads "The VizieR Service for Astronomical Catalogues (CDS, Strasbourg, France)" (Meta description: 9 words. No OG description (falling back to meta)) - this is the summary AI engines are most likely to quote.
Structured data on the homepage: No structured data or Open Graph tags detected. Adding Organization and FAQ schema would further help AI crawlers parse the brand's identity.
AI-crawler access: No robots.txt found (default: all bots allowed, but explicit file preferred) - robots.txt controls whether engines like GPTBot and ClaudeBot can read the site at all.
Detected tech stack: Apache.
Social footprint: verified profiles on YouTube, GitHub, Instagram; no detected presence on Facebook, X (Twitter), LinkedIn - consistent profiles reinforce the brand's identity across the web.
0 Reddit mentions - community discussion signals real-world reputation to AI models.
Live results from asking a general-purpose AI assistant about the brand, checked October 2026.
When asked "What is SIMBAD Astronomical Database?", Claude could identify the brand as of October 2026. SIMBAD is a widely used astronomical database maintained by the Centre de Données astronomiques de Strasbourg (CDS) that provides basic data, cross-identifications, bibliography, and measurements for millions of astronomical objects outside the solar system. It's a core reference Best known for being the standard reference database for identifying and cross-referencing astronomical objects (stars, galaxies, nebulae, etc.) used by astronomers globally.
When asked "Best brands similar to SIMBAD Astronomical Database?", Claude would recommend VizieR as of October 2026. If someone asked about astronomical databases or tools for research/education in astronomy, SIMBAD is one of the most authoritative and commonly cited resources I'd mention.
Common questions people ask in Google, ChatGPT, Claude, Gemini, Perplexity, and other AI search engines.
VizieR offers access to a comprehensive, curated database of published astronomical catalogues and survey data tables. It provides search and navigation tools, including a Kohonen Self-Organizing Map, to help users locate catalogues by sky region and content similarity.
Sources: VizieR official site
VizieR is an online service maintained by the Strasbourg Astronomical Data Center (CDS) in France that provides access to a large, curated collection of published astronomical catalogues and data tables. It serves as a centralized repository where astronomers can search, browse, and retrieve catalogue data related to astronomical objects and sky surveys.
Sources: VizieR official site
VizieR has moderate AI-search visibility, scoring 53/100 on Brand Analyzer's AI visibility composite (visibility 57, trust 34, recommendation 68). This estimates how likely AI engines like ChatGPT, Claude, Gemini and Perplexity are to know, trust, and recommend the brand.
Sources: VizieR official site
VizieR is considered a trustworthy resource within the astronomical community, as it is maintained by the Strasbourg Astronomical Data Center (CDS), a recognized scientific institution, and is used by AAS journals and researchers worldwide for accessing published catalogue data.
Sources: VizieR official site
VizieR collects, curates, and distributes published astronomical catalogues and data tables, making them searchable and accessible to researchers. It offers tools like a Kohonen Self-Organizing Map to help users find and group catalogues by sky region or content similarity, enabling efficient discovery of relevant astronomical datasets.
Sources: VizieR official site
VizieR scores 68/100 on Brand Analyzer's AI recommendation signal, indicating it is reasonably likely to be surfaced when AI assistants like ChatGPT suggest Education options. Recommendation depends on crawlability, structured data, and category authority; a Wikipedia presence helps.
Sources: VizieR official site
VizieR is known for being a comprehensive, expertly curated repository of astronomical catalogues, maintained by the Strasbourg Astronomical Data Center (CDS). It is recognized for its advanced search and organizational tools, including the Kohonen Self-Organizing Map, which help users locate catalogues by sky region and content similarity.
Sources: VizieR official site
VizieR can improve AI discoverability by strengthening structured data (Organization and FAQ schema), maintaining an accurate Wikipedia/Wikidata entity, earning authoritative citations, and keeping content crawlable for AI bots. Brand Analyzer measures these as visibility, trust, and recommendation signals.
Sources: VizieR official site
VizieR is used by astronomers, researchers, and scientific institutions who need access to published astronomical catalogues and survey data for their research. It is also trusted by organizations such as AAS journals.
Sources: VizieR official site
VizieR is owned by or part of Strasbourg Astronomical Data Center. VizieR operates in the Education category.
Sources: Wikidata
VizieR is popular among astronomers because it offers centralized, curated access to a vast range of published astronomical catalogues and data tables, along with advanced search tools like the Kohonen Self-Organizing Map that make it easier to locate relevant data by sky region or content similarity. Its maintenance by CDS Strasbourg and trust from institutions like AAS journals further bolster its reputation.
Sources: VizieR official site
VizieR scores 53/100 for AI visibility - how well ChatGPT, Claude, Perplexity and Google AI Overviews can discover, identify and cite the brand.
VizieR has a limited AI-visibility profile at 53/100 - a proxy for how readily ChatGPT, Perplexity and Google's AI Overviews can recognise and cite it. Its strongest area is recommendation likelihood (68/100) and its weakest is trust (34/100). It benefits from a recognised Wikipedia company entity, a Wikidata knowledge-graph entry and a Moz Domain Authority of 67/100. The main gaps holding it back: thin schema.org structured data and no llms.txt to steer AI to its best pages. In a live check, Claude could already identify VizieR from memory (October 2026) - a sign these signals are paying off.
The score combines seven dimensions - name quality, digital presence, visual identity, messaging clarity, trust foundation, AI discoverability, and brand authority - into a single objective benchmark.
78 in October 2026, up from 67 in October 2026.
Ranked closest to VizieR: Université Saint-Paul (78/100), University of Santo Tomas (78/100), Utah Community Action (78/100), The University of Texas at El Paso (UTEP) (78/100).
A step up - brands to learn from: Zymo Research (81/100), Zutobi (81/100).
Category leader: Canva (97/100).
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