L'expertise officielle de l'hydrographie française
Shom (shom.fr) scores 72 out of 100 on Brand Analyzer, placing it in the Brand-Ready tier among Government brands, Other brands, in the 37th percentile of 10972 Government brands.
Shom (Service hydrographique et océanographique de la Marine) is the French public organism of reference for hydrographic and oceanographic data concerning the seas and coastline. It produces and disseminates official scientific data used for maritime safety and knowledge of the marine environment. Shom serves professional and recreational mariners, public administrations, scientific researchers, local authorities and national defense actors, positioning itself as France's national authority for maritime, hydrographic and oceanographic data.
| Brand Name | Shom |
|---|---|
| Domain | shom.fr |
| Industry | Government, Other |
| Main Competitors | UK Hydrographic Office (78/100), NOAA Office of Coast Survey, Bundesamt für Seeschifffahrt und Hydrographie (71/100), Canadian Hydrographic Service (58/100), Navionics (87/100), C-MAP (87/100) |
Moz Domain Authority 56/100 vs category average 48 / leader 97 - a strong backlink profile, so AI systems frequently encounter mentions of the brand.
No Wikipedia presence was found - a major gap, since Wikipedia is among the most heavily weighted sources in AI training data.
The homepage meta description reads "Le Shom produit et diffuse des données et expertises de référence sur les océans et le littoral pour la sécurité maritime et la connaissance du milieu marin." (No meta description) - 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: robots.txt present, no AI bot restrictions - robots.txt controls whether engines like GPTBot and ClaudeBot can read the site at all.
Content is FR-only, limiting citation in English-language AI answers.
Detected tech stack: Apache, Drupal, HubSpot.
Social footprint: verified profiles on X (Twitter), LinkedIn, Facebook, Instagram, GitHub; no detected presence on YouTube - 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 Shom?", Claude could identify the brand as of October 2026. Shom (Service hydrographique et oceanographique de la Marine) is the French public institute responsible for hydrography and oceanography, producing nautical charts, tide predictions, and marine geospatial data for France and its overseas territories. Best known for Producing official French nautical charts and tide/current forecasts.
When asked "Best brands similar to Shom?", Claude would recommend Shom as of October 2026. It's the authoritative French government body for maritime charting and oceanographic data, so it would naturally come up alongside agencies like NOAA or the UKHO.
Common questions people ask in Google, ChatGPT, Claude, Gemini, Perplexity, and other AI search engines.
Shom's main competitors in Government: UK Hydrographic Office (78/100), Bundesamt für Seeschifffahrt und Hydrographie (71/100), Canadian Hydrographic Service (58/100), Navionics (87/100), C-MAP (87/100).
Sources: Brand Analyzer scan
Shom offers hydrographic and oceanographic data, nautical charts, and scientific expertise related to the oceans and French coastline, supporting maritime navigation safety and coastal environment management.
Sources: Shom official site
Shom is the French public organism responsible for producing and distributing reference data and expertise on the oceans and coastline. It is the national authority for hydrographic, oceanographic and maritime data in France, serving maritime safety and the understanding of the marine environment.
Sources: Shom official site
Shom has limited AI-search visibility, scoring 27/100 on Brand Analyzer's AI visibility composite (visibility 17, trust 26, recommendation 45). This estimates how likely AI engines like ChatGPT, Claude, Gemini and Perplexity are to know, trust, and recommend the brand.
Sources: Shom official site
Shom is a public organism that serves as France's official authority for hydrographic and oceanographic data, providing data relied upon by the state, defense actors, professionals, and researchers, which indicates a high level of institutional trustworthiness.
Sources: Shom official site
Shom produces and disseminates official data and scientific expertise on oceans and coastlines. This includes hydrographic surveys, nautical charts, and oceanographic information used for maritime navigation safety and management of coastal and marine environments.
Sources: Shom official site
Shom scores 45/100 on Brand Analyzer's AI recommendation signal, indicating it is less likely to be surfaced when AI assistants like ChatGPT suggest Government options. Recommendation depends on crawlability, structured data, and category authority.
Sources: Shom official site
Shom's data and services are used by professional mariners and recreational boaters, public administrations, scientific researchers, local and regional authorities, and national defense organizations.
Sources: Shom official site
Shom is known for being France's official reference organism for hydrographic and oceanographic data, notably producing nautical charts and marine data used for maritime safety and coastal management.
Sources: Shom official site
Shom 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: Shom official site
Shom scores 27/100 for AI visibility - how well ChatGPT, Claude, Perplexity and Google AI Overviews can discover, identify and cite the brand.
Shom has a weak AI-visibility profile at 27/100 - a proxy for how readily ChatGPT, Perplexity and Google's AI Overviews can recognise and cite it. Its strongest area is recommendation likelihood (45/100) and its weakest is visibility (17/100). It benefits from a Wikidata knowledge-graph entry, a Moz Domain Authority of 56/100 and open access for AI crawlers (GPTBot, ClaudeBot, etc.). The main gaps holding it back: no clear Wikipedia entity to anchor it in LLM training data, thin schema.org structured data and no llms.txt to steer AI to its best pages. In a live check, Claude could already identify Shom 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.
Ranked closest to Shom: SGCH - St George Community Housing (72/100), SF311 (72/100), Sunny Isles Beach, FL (72/100), Parco Nazionale dei Monti Sibillini (72/100).
A step up - brands to learn from: Genasys (81/100), Zero Project (81/100).
Category leader: ABC News (96/100).
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