Advancing understanding of environmental health
CTD (ctdbase.org) scores 54 out of 100 on Brand Analyzer, placing it in the Early Stage tier among Healthcare brands, Education brands, Technology brands, in the 3rd percentile of 13196 Healthcare brands.
CTD (Comparative Toxicogenomics Database) is a publicly available, manually curated database that links environmental chemicals, genes, phenotypes, and diseases. It is designed to help researchers understand the molecular mechanisms by which environmental exposures contribute to human disease. The resource is freely accessible and targets biomedical researchers, toxicologists, and environmental health scientists seeking to generate testable hypotheses from curated chemical-gene-disease interaction data.
| Brand Name | CTD |
|---|---|
| Domain | ctdbase.org |
| Industry | Healthcare, Education |
| Main Competitors | PubChem, EPA CompTox Chemicals Dashboard, DisGeNET, PharmGKB (73/100), Open Targets (74/100), GeneCards (70/100) |
Moz Domain Authority 42/100 vs category average 41 / leader 95 - a strong backlink profile, so AI systems frequently encounter mentions of the brand.
Ranked #340,510 on the Tranco list of most-visited sites - modest traffic makes the brand easy for AI models to overlook.
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 "To provide a publicly available database that promotes understanding of the connections between environmental chemicals and human disease." (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: 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.
Social footprint: verified profiles on Instagram, GitHub; no detected presence on X (Twitter), LinkedIn, Facebook, 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 CTD?", Claude could identify the brand as of October 2026. CTD stands for the Comparative Toxicogenomics Database, a public research resource that curates and provides data on interactions between chemicals, genes, proteins, and diseases to help researchers understand the mechanisms of environmental health effects. Best known for Curated database linking chemicals, genes, and diseases for toxicogenomics research.
When asked "Best brands similar to CTD?", Claude would recommend CTD as of October 2026. It's a widely used and respected academic resource in toxicogenomics and environmental health research, so I'd mention it to anyone looking for tools in that specific niche.
Common questions people ask in Google, ChatGPT, Claude, Gemini, Perplexity, and other AI search engines.
CTD's main competitors in Healthcare: PharmGKB (73/100), Open Targets (74/100), GeneCards (70/100).
Sources: Brand Analyzer scan
CTD offers a publicly available database containing curated information on the relationships between environmental chemicals, genes, phenotypes, and diseases. Its core service is providing structured, manually reviewed scientific data that supports research into chemical-gene-disease interactions, enabling users to search and analyze these relationships for research purposes.
Sources: CTD official site
CTD, or the Comparative Toxicogenomics Database, is a publicly available, manually curated scientific database that documents relationships between environmental chemicals, genes, phenotypes, and human diseases. It is designed to support research into how environmental exposures affect human health by providing validated, structured data that can be used to form hypotheses about chemical-gene-disease interactions.
Sources: CTD official site
CTD has limited AI-search visibility, scoring 25/100 on Brand Analyzer's AI visibility composite (visibility 22, trust 22, recommendation 32). This estimates how likely AI engines like ChatGPT, Claude, Gemini and Perplexity are to know, trust, and recommend the brand.
Sources: CTD official site
CTD curates and organizes scientific literature to document relationships among environmental chemicals, genes, phenotypes, and diseases. It provides a publicly accessible database that allows researchers to explore chemical-gene interactions, gene-disease associations, and chemical-disease relationships, helping scientists generate hypotheses about how environmental exposures may contribute to disease mechanisms.
Sources: CTD official site
CTD scores 32/100 on Brand Analyzer's AI recommendation signal, indicating it is less likely to be surfaced when AI assistants like ChatGPT suggest Healthcare options. Recommendation depends on crawlability, structured data, and category authority.
Sources: CTD official site
CTD 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: CTD official site
CTD is used by biomedical researchers, toxicologists, environmental health scientists, and academic institutions studying the connections between chemical exposures, genetic factors, and disease outcomes. These users rely on CTD's curated data to support research in toxicogenomics, environmental health, and molecular biology.
Sources: CTD official site
CTD is known for providing manually reviewed, scientifically validated data connecting environmental chemicals, genes, phenotypes, and diseases. It is widely recognized among toxicologists and environmental health researchers as a key resource for studying the molecular basis of chemical-induced disease and for enabling hypothesis generation in toxicogenomics research.
Sources: CTD official site
CTD is popular among biomedical researchers and toxicologists because it offers free access to manually curated, scientifically validated data linking chemicals, genes, phenotypes, and diseases. This allows scientists to efficiently explore complex relationships between environmental exposures and health outcomes without needing to independently review primary literature, supporting hypothesis generation in environmental health research.
Sources: CTD official site
CTD scores 25/100 for AI visibility - how well ChatGPT, Claude, Perplexity and Google AI Overviews can discover, identify and cite the brand.
CTD has a weak AI-visibility profile at 25/100 - a proxy for how readily ChatGPT, Perplexity and Google's AI Overviews can recognise and cite it. Its strongest area is recommendation likelihood (32/100) and its weakest is trust (22/100). It benefits from a Wikidata knowledge-graph entry, a global traffic rank of #340,510 (Tranco) and a Moz Domain Authority of 42/100. 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 CTD 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 CTD: Credible (54/100), CLMA (54/100), Samaritan Daytop Village (54/100), Delpharm (54/100).
A step up - brands to learn from: Word of Mouth Technology (56/100), Werskincare (56/100).
Category leader: Booksy (96/100).
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