AI SEO: Optimizing Your Site for AI Search
Make your website findable, readable, and quotable for ChatGPT, Perplexity, Gemini, and Copilot. Also known as LLM SEO, GEO, or AEO — the name varies, the work doesn't.
What "AI SEO" means
AI SEO is the practice of optimizing a website so AI systems — ChatGPT, Perplexity, Gemini, Copilot — can crawl it, understand it, and cite it in their answers.
One disambiguation before anything else, because the phrase is used for two unrelated things. Optimizing your site for AI search engines — this page — is one. Using AI tools to automate traditional SEO work (drafting content, clustering keywords) is the other. They share three letters and nothing else. If you came here for the second, this isn't that.
The first kind goes by several names: AI SEO, LLM SEO, generative engine optimization (GEO), answer engine optimization (AEO), AI search optimization. They all describe the same discipline. What matters isn't the label — it's that AI answers are a distribution channel with its own plumbing, and most of that plumbing is invisible until you test it.
The three layers of AI SEO
Layer 1 — Access: can AI crawlers reach you at all?
Every AI engine sends crawlers, and each respects (or ignores) robots.txt differently. The ones that gate your visibility in AI search results: OAI-SearchBot for ChatGPT search, Claude-SearchBot for Claude, PerplexityBot for Perplexity. A robots.txt line, a WAF rule, or a CDN bot-protection setting can silently remove you from all of them. This layer is binary and checkable — test all crawlers against your site free.
Layer 2 — Understanding: does your content survive the fetch?
Most AI crawlers do not execute JavaScript. If your content only exists after client-side rendering, what the crawler stores is an empty shell. Structure matters too: clean headings, schema markup (Article, FAQPage), and an llms.txt file telling LLMs what your site is.
Layer 3 — Citation: is there anything worth quoting?
Engines quote passages that answer a question completely, in place: direct answers under question-shaped headings, one fact per sentence, named sources, dated claims. This is the layer the GEO research measured — and the layer BotView's GEO score grades 0–100.
How AI SEO differs from traditional SEO
| Traditional SEO | AI SEO | |
|---|---|---|
| Outcome | Ranking in a list of links | Being cited inside an answer |
| Discovery | Googlebot, Bingbot | GPTBot, OAI-SearchBot, ClaudeBot, PerplexityBot, Google-Extended and a dozen more |
| JavaScript | Googlebot renders it | Most AI crawlers don't |
| Robots.txt | One or two bots to think about | Per-bot decisions: search-index bots gate visibility, training bots are a policy choice |
| Measurement | Rankings, clicks, impressions | Crawler access, answer-readiness, citations |
| Failure mode | Page 2 of results | Silent absence from every answer |
Note the overlap: ChatGPT's web search draws on Microsoft Bing's index, so classic Bing indexing is itself an AI SEO concern — being invisible to Bing means being invisible to ChatGPT search regardless of your robots.txt. Details in how ChatGPT searches the web.
The AI SEO checklist
- robots.txt allows OAI-SearchBot, Claude-SearchBot, and PerplexityBot
- Your CDN/WAF isn't serving AI crawlers a challenge page
- Core content is present in the initial HTML, not injected by JavaScript
- Your site is indexed in Bing (it feeds ChatGPT search)
- Each key page answers its question in the first two sentences under the heading
- Headings are phrased as the questions users actually ask
- FAQPage / Article schema on pages where it genuinely applies
- Facts are specific, sourced, and dated — one per sentence
- llms.txt describes your site for LLM consumption
- You re-check access after any CDN, WAF, or robots.txt change
AI SEO — frequently asked questions
Is LLM SEO different from AI SEO?
No. “LLM SEO” and “AI SEO” are interchangeable labels for optimizing a site to be found and cited by AI systems. GEO and AEO are the same discipline under academic and marketing names respectively.
Do I need to stop doing traditional SEO?
No. AI engines still discover content by crawling and indexing, and ChatGPT search draws on Bing's index. Traditional SEO is the foundation; AI SEO adds access checks and quotability on top.
Which AI crawlers actually matter?
For visibility in AI search results, three gates: OAI-SearchBot (ChatGPT), Claude-SearchBot (Claude), PerplexityBot (Perplexity). Training crawlers like GPTBot and ClaudeBot are a separate policy decision — blocking them does not remove you from AI search.
Does blocking GPTBot hurt my ChatGPT visibility?
Blocking GPTBot opts you out of OpenAI's model training but does not affect ChatGPT search results — those are gated by OAI-SearchBot. Blocking OAI-SearchBot is what removes you from ChatGPT's answers.
How do I check my AI SEO?
Run a free BotView scan: it probes your site as each AI crawler, flags access problems, and scores each page's answer-readiness 0–100. Takes about a minute, no signup.
Deeper dives: what GEO is, what AEO is, and how to measure your AI search visibility.
Run a free AI SEO check
Per-crawler access grid plus a GEO score for your page — in about 60 seconds.