AI Visibility Index / Industries / SEO & AI search visibility
Most AI-visible SEO & AI search tools (2026)
We scored 11 SEO & AI search tools on how easily ChatGPT, Perplexity, Claude and AI agents can find, understand and use them. Frase leads with 100/100. Data from our crawl on October 18, 2026; scores are a homepage snapshot, not live.
SEO & AI search tools average score
Whole-index average (-3 for this industry)
of these sites miss “Question & answer content”
| # | Product | Score | Crawlers | Content | Schema | Agents |
|---|---|---|---|---|---|---|
| 1 | Frase frase.io | 100 | 100 | 100 | 100 | 100 |
| 2 | Similarweb similarweb.com | 98 | 95 | 100 | 100 | 100 |
| 3 | Semrush semrush.com | 97 | 95 | 94 | 100 | 100 |
| 4 | Writesonic writesonic.com | 96 | 100 | 87 | 100 | 100 |
| 5 | Ahrefs ahrefs.com | 90 | 100 | 94 | 100 | 64 |
| 5 | Surfer surferseo.com | 90 | 100 | 93 | 100 | 64 |
| 7 | AthenaHQ athenahq.ai | 84 | 100 | 94 | 20 | 83 |
| 8 | Peec AI peec.ai | 79 | 100 | 94 | 20 | 64 |
| 9 | Scrunch scrunchai.com | 78 | 95 | 81 | 20 | 83 |
| 10 | Clearscope clearscope.io | 66 | 85 | 87 | 20 | 38 |
| 11 | Otterly.AI otterly.ai | 34 | 72 | 8 | 8 | 26 |
Sub-scores: Crawlers = AI crawler access, Content = answer-engine content, Schema = structured data, Agents = agent readiness (llms.txt, API/MCP). Ties share a rank.
SEO & AI search tools vs the whole index
| Area | This industry | All 538 sites |
|---|---|---|
| Overall score | 83 | 86 |
| AI crawler access | 95 | 97 |
| Answer-engine content | 85 | 89 |
| Structured data | 63 | 71 |
| Agent readiness | 75 | 76 |
Most common gaps among SEO & AI search tools
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FAQ
Which SEO & AI search tools are the most visible to AI search engines?
In our October 18, 2026 crawl, the top-scoring SEO & AI search tools were Frase (100/100), Similarweb (98/100), Semrush (97/100). The score measures how easily ChatGPT, Perplexity, Claude and AI agents can crawl, understand and use each product's homepage.
How do SEO & AI search tools compare with the rest of the AI Visibility Index?
The 11 SEO & AI search tools we track average 83/100, 3 points below the 86/100 average across all 538 SaaS and AI sites in the index.
What is the most common AI visibility gap among SEO & AI search tools?
73% of the SEO & AI search tools we checked miss "Question & answer content" (vs 71% across the whole index). Fix: Add an FAQ answering the exact questions buyers ask ChatGPT ("best X for Y", "X vs Y", "how much does X cost").
How is the AI visibility score calculated?
RankRoot checks four areas on each homepage: AI crawler access (robots.txt rules for GPTBot, ClaudeBot, PerplexityBot and others), answer-engine content (title, headings, FAQ-style content, server-rendered text), structured data (JSON-LD, Organization/Product schema) and agent readiness (llms.txt, discoverable API or MCP server). Each area is scored 0 to 100 and combined into one score.
When was this data collected, and can a company update its score?
Scores are a snapshot from our crawler on October 18, 2026. They are not updated automatically. Anyone can rescan a site live for free, and we refresh the index periodically.
My SEO & AI search tool isn't listed. How do I see where it would rank?
Run a free scan at https://getrankroot.com/report. You get the same score and checks, so you can compare it directly with this leaderboard.
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Methodology and full findings: State of AI Visibility 2026. Industry labels are assigned by RankRoot from each product's own homepage description.