AI search engine optimization is the work of getting your brand found, understood, and cited by AI answer engines like ChatGPT, Perplexity, and Google AI Overviews, not just ranked in a list of links. This is the practitioner's version: 18 concrete checks, grouped by what those engines evaluate, each with a pass mark and the fix.
For the reasoning behind each check, read the full AI search guide. This page is the do-it-now companion. Work it top to bottom, because a failure early in the list cancels out everything below it. A brand that blocks the ChatGPT crawler cannot be helped by perfect schema.
The fastest way to get your own scores is the free AI SEO audit: it runs every check below on any URL in about 30 seconds and returns a prioritized fix list. Use it to baseline before you start.
1. Crawler Access: Can AI Read You
If AI engines cannot fetch your pages, nothing else on this list matters. Start here.
- AI crawlers are unblocked in robots.txt. Check that
OAI-SearchBotandChatGPT-User(ChatGPT),PerplexityBot(Perplexity),ClaudeBot(Claude), andGoogle-Extendedare not disallowed. Pass: none of them are blocked. A single accidentalDisallowhere removes you from that platform entirely. - Your key pages are indexed in Bing. ChatGPT and Copilot retrieve live results through Bing, so Bing indexation is a prerequisite for ChatGPT visibility. Pass: your priority URLs return results in Bing. Fix: submit them in Bing Webmaster Tools or via IndexNow.
- You have a valid LLMs.txt file. Pass:
/llms.txtis reachable and well-formed. Claude and Perplexity are on record reading it. Fix: generate one in under a minute with the LLMs.txt generator. - Core content is in the server-rendered HTML. If your main content only appears after client-side JavaScript runs, many AI crawlers never see it. Pass: your key facts and copy are present in the raw HTML.
2. Content Structure: Can AI Extract Your Answer
AI engines lift sentences, not pages. Structure decides whether yours are liftable.
- Sections open with the answer. Lead each H2 with a direct, quotable claim, then support it. Pass: a reader (or a model) gets the answer in the first two lines of every section.
- Key pages have FAQ blocks with FAQPage schema. This is the format AI engines most reliably extract into answers. Pass: your priority pages carry visible FAQs plus valid FAQPage markup. Fix: validate what you have with the structured data validator.
- Entities are named explicitly. State your brand, product, and category in plain text rather than relying on pronouns or implication. Pass: a model reading one page can say what you are and who you serve without guessing.
- Structured data is present and error-free. Organization, Article, and Product schema tell engines how to read your content. Pass: your schema validates with no errors. Broken markup is worse than none.
- Headings are descriptive and paragraphs are short. Clear hierarchy and scannable blocks help extraction. Pass: your headings read as questions or claims, not labels.
3. Authority and Citations: Does AI Trust You
Access and structure get you readable. Authority gets you chosen from the 3-5 brands an answer names. This is a citation, and it is earned.
- Pages have named authors with real credentials. Pass: a byline links to a bio that establishes expertise. Generic or missing authorship is a trust penalty.
- Claims cite primary sources. Link data and quotes to their origin. Pass: your factual claims are sourced, not asserted.
- Pages show a visible last-updated date. Freshness is a ranking signal for AI answers, especially on year-stamped queries. Pass: your important pages display when they were last updated.
- You appear on the third-party sources AI already trusts. Engines pull from review sites, Reddit, YouTube, and industry publications when they name brands. Pass: your brand shows up in your category's top few of those, not only on your own domain.
- Your brand facts are consistent across the web. Conflicting descriptions of what you do weaken the entity. Pass: your positioning reads the same on your site, your profiles, and third-party listings.
4. Measurement: Are You Tracking It
You cannot optimize what you cannot see, and AI referrals hide inside your existing analytics unless you split them out.
- You segment AI referral traffic. Build GA4 and Search Console views that isolate ChatGPT, Perplexity, and Gemini referrers. Pass: you can answer "how much traffic did AI send us last month" with a number.
- You track citations and share of voice across every platform that matters. RankZero covers 8: ChatGPT, Perplexity, Google AI Overviews, and Gemini included, with Claude, Grok, DeepSeek, and Mistral on demand. Pass: you know your share of voice against named competitors, not just your own trend. See the platform for how that tracking works.
- You monitor wins and losses at the prompt level. Category-level scores hide the queries you are quietly losing. Pass: you know which specific prompts cite you and which cite a competitor.
- You re-audit after every change. AI engines re-index on their own schedule; most fixes surface in citation data within 2-4 weeks. Pass: you re-run the audit after changes instead of assuming they landed.
The Priority Order, If You Only Fix Three Things
Most sites do not need all 18 at once. In order of impact: unblock the AI crawlers, add FAQ schema to your highest-intent pages, and get named on 2-3 third-party sources your category's AI answers already cite. Those three move citation frequency faster than anything else on the list. The rest compounds from there.
FAQ
What is AI search engine optimization? AI search engine optimization is the practice of making your brand findable, readable, and citable by AI answer engines such as ChatGPT, Perplexity, Google AI Overviews, and Gemini. It targets the signals those engines use to decide which brands to name in a generated answer: crawler access, content structure, structured data, third-party authority, and freshness, most of which traditional SEO tools do not check.
How is it different from traditional SEO? Traditional SEO optimizes for a position in a list of ten links. AI search engine optimization optimizes for being one of the 3-5 brands named inside a single synthesized answer, where there is no list and often no second click. The levers differ: structured facts, crawler permissions, answer-first formatting, and citations across the wider web matter more than backlink volume alone.
How long until it shows results? Technical fixes like unblocking crawlers and adding FAQ schema can appear in citation data within days. Content restructuring registers in 2-4 weeks as engines re-index. Earned third-party authority is the slowest lever, usually 2-3 months, and also the most durable.
Do I need to complete all 18 checks? No. Start with crawler access, since a blocked crawler makes every other fix invisible on that platform. Then work structure and authority. The measurement checks tell you whether the rest worked.
Can any of this be automated? The audit and tracking can. The free AI SEO audit runs the readability and technical checks on any URL, and ongoing citation and share-of-voice tracking runs continuously in the platform. The authority-building work still takes deliberate effort, which is where a done-for-you service fits.
Run the Checklist
Start by baselining one page with the free AI SEO audit, then work the failures in priority order. If you would rather have the checks run and the fixes shipped for you, get a free AI search audit and we will show you your citation gap against your top competitors before you commit to anything.