AI Visibility
Optimize your site to appear in AI search engines like ChatGPT, Gemini, and Perplexity.
Why AI Visibility Matters
AI search engines (ChatGPT, Google Gemini, Perplexity, Bing Copilot) increasingly drive traffic by citing websites in their responses. Only ~11% of domains are cited by both ChatGPT and Google AI Overviews for the same query — optimizing for each platform requires different strategies.
What Teste.no Checks
llms.txt Files
The llms.txt specification lets you provide AI models with a structured overview of your site.
/llms.txt— Brief site summary for AI crawlers/llms-full.txt— Detailed version with complete content
AI Crawler Policies
Your robots.txt controls which AI crawlers can access your content:
| Crawler | Platform | Default |
|---|---|---|
| GPTBot | ChatGPT / OpenAI | Most sites block |
| Google-Extended | Gemini / AI Overviews | Many sites block |
| ClaudeBot | Anthropic / Claude | Varies |
| CCBot | Common Crawl / many AI models | Often blocked |
| Bytespider | TikTok / various | Often blocked |
| PerplexityBot | Perplexity AI | Varies |
| Applebot-Extended | Apple Intelligence | Varies |
Structured Data
JSON-LD structured data helps AI engines understand your content. Teste.no validates schema.org types and checks for required properties that enable rich citations:
- Organization schema (for knowledge graph)
- Product schema (for shopping queries)
- Article schema (for content queries)
- FAQPage (for direct answer extraction)
- BreadcrumbList (for navigation understanding)
Platform-Specific Guidance
Each AI platform weighs different signals. The ai-search-readiness test covers the shared foundations (llms.txt, AI-crawler access, structured data); the guidance below is what matters per platform:
| Platform | Key factors |
|---|---|
| Google AI Overviews | Question headings, direct answers, tables, FAQ sections, publication dates |
| ChatGPT Web Search | GPTBot access, sameAs entity graph, content depth, OG tags |
| Perplexity AI | Freshness, original research, quotable paragraphs, multi-source citations |
| Google Gemini | Schema depth, YouTube links, image alt text, E-E-A-T signals |
| Bing Copilot | bingbot access, IndexNow, LinkedIn links, meta descriptions |
Citation Readiness
The ai-citability-check scores individual passages on your pages for AI citation quality. Each passage (text block under a heading) is scored across 5 dimensions:
- Answer Block Quality — Definition patterns, answer-first structure
- Self-Containment — Optimal length, low pronoun density, named entities
- Structural Readability — Sentence clarity, list structures
- Statistical Density — Percentages, sources, named references
- Uniqueness Signals — Original research, case studies