A growing number of customers no longer scroll through ten blue links. They ask ChatGPT for the best dentist near them, read Google’s AI Overview at the top of the results, or ask Perplexity to compare three contractors. If your business isn’t one of the sources those tools draw from, you’re invisible in a conversation that’s happening about your industry right now.
This guide explains what AI SEO actually is, how AI search chooses its sources, what Google and OpenAI say in their own documentation, and the practical steps that make your business easier to find and cite. No hype, and no tricks: just what works.
What is AI SEO?
AI SEO, often called generative engine optimization (GEO), is the practice of making your website easy for AI-powered search tools to discover, understand and quote. Traditional SEO aims to rank a page in the list of results. AI SEO aims to be one of the handful of sources an AI answer is built from, and ideally the one it links to.
The good news is that the two overlap almost completely. AI search tools still rely on crawling, indexing and ranking web pages to find their sources. A site that’s fast, well structured and genuinely helpful tends to do well in both. What changes is the emphasis: clarity, specificity and reputation matter even more when an AI is deciding which few sentences to quote.
How AI search chooses its sources
Each tool works a little differently, but the pattern is similar. When someone asks a question, the tool searches an index of web pages, picks a small set of relevant, trustworthy results, reads them and writes an answer, usually with links back to the pages it used. Your page has to clear three hurdles:
- It must be crawlable and indexed. If the tool’s crawler can’t reach your page, it can’t use it.
- It must be relevant and trustworthy. Pages that rank well in normal search, and sites with a strong reputation, are far more likely to be selected.
- It must be easy to quote. A clear, direct answer to the question is much easier for an AI to use than a vague paragraph of marketing language.
What Google says about AI Overviews
Google is refreshingly direct about this. Its documentation on AI features and your website (opens in a new tab) says there are no additional requirements to appear in AI Overviews or AI Mode. The same foundational SEO best practices apply: pages must be indexed and eligible to show a snippet, content should be helpful and people-first, and the site should offer a good page experience.
That means anyone selling a secret “AI Overview optimization” trick is overselling. What Google rewards is described in its guidance on creating helpful, reliable, people-first content (opens in a new tab): content written by people with real expertise, for a real audience, that leaves the reader satisfied.
How to show up in ChatGPT and Perplexity
ChatGPT and Perplexity run their own crawlers, and this is where many sites quietly lock themselves out. OpenAI’s crawler documentation (opens in a new tab) explains that OAI-SearchBot is used to surface websites in ChatGPT’s search features, while a separate crawler, GPTBot, collects content for training models. The two are controlled independently, so you can allow ChatGPT search while opting out of training if you prefer.
Perplexity works the same way. Its crawler documentation (opens in a new tab) describes PerplexityBot, which indexes pages to surface and link them in Perplexity’s answers.
| Tool | Crawler to allow | What it's used for |
|---|---|---|
| Google AI Overviews & AI Mode | Googlebot | Google Search, including AI features |
| ChatGPT search | OAI-SearchBot | Surfacing and linking sites in ChatGPT answers |
| Perplexity | PerplexityBot | Surfacing and linking sites in Perplexity answers |
| Microsoft Copilot | Bingbot | Bing search, which powers Copilot answers |
Check your robots.txt file and any firewall or bot-protection settings. Some security tools block unfamiliar crawlers by default, which can remove you from AI search without you ever knowing.
Write content AI can quote
AI tools build answers from specific, well-organized information. The pages that get cited tend to share a few traits:
- They answer the question directly. Put a clear, one-to-two sentence answer near the top of the section, then add detail. “A small business website usually takes four to eight weeks” is quotable; “timelines vary” is not.
- They use descriptive headings. Headings that mirror real questions (“How long does SEO take to work?”) make it easy to find the relevant passage.
- They include specifics. Real numbers, named locations, clear processes and first-hand experience give an AI something concrete to work with.
- They show who’s behind them. An author, a real business with an address and phone number, and consistent details across the web all build trust.
- They cover the whole topic. A service page that also answers the common follow-up questions (cost factors, timelines, what’s included) is more useful than a thin page with a contact form.
FAQ sections are especially effective because they’re written exactly the way people ask questions. We build them into every SEO and service page we create for this reason.
The technical foundations
AI SEO sits on the same technical base as traditional SEO. The essentials:
- Crawlable, server-rendered pages. Content that only appears after heavy JavaScript runs can be harder for some crawlers to read. Pages that deliver their text in the initial HTML are safest.
- Structured data. Schema markup helps search engines understand who you are, what you offer and where. Google’s introduction to structured data (opens in a new tab) explains how it gives explicit clues about a page’s meaning.
- Fast, stable pages. Good Core Web Vitals help normal rankings, which in turn make you more likely to be chosen as a source.
- A clean sitemap and internal links. Help every crawler find every important page.
AI search for local businesses
When someone asks an AI tool for “the best plumber in Mississauga” or “a dentist near me that takes new patients,” the answer draws on the same signals as local search: your Google Business Profile, reviews, consistent business details and pages that clearly describe your services and service areas.
That makes the local SEO basics more valuable than ever:
- A complete, accurate Google Business Profile with photos and the right categories.
- A steady flow of genuine reviews that mention your services and location.
- The same business name, address and phone number everywhere you’re listed.
- A page for each service and each city you serve, like the city pages we build for SEO in Mississauga and across the GTA.
How to measure AI search visibility
AI search is harder to measure than a traditional ranking, because answers change from one person and one question to the next. You can still get a reliable picture with a few simple habits:
- Watch your referral traffic. Visits from chatgpt.com, perplexity.ai and copilot.microsoft.com show up in your analytics as referrals. A rising trend means AI tools are linking to you.
- Keep an eye on Search Console. Traffic from AI Overviews and AI Mode is included in your Google Search Console performance data, alongside your normal search results.
- Ask the questions yourself. Once a month, ask ChatGPT, Perplexity and Google the ten questions your best customers ask before they buy, and note whether your business is mentioned or linked.
- Ask new customers how they found you. A single question on your contact form, like “How did you hear about us?”, often reveals AI recommendations that analytics can’t see.
Track these alongside your normal rankings, calls and enquiries. The goal isn’t a vanity metric; it’s more of the right customers finding you, whichever tool they use.
AI SEO myths to ignore
- “You need special AI markup to appear in AI Overviews.” Google says there are no additional requirements.
- “An llms.txt file will get you into ChatGPT.” It’s optional at best, and Google doesn’t use it for Search. Crawlability and content matter far more.
- “AI search makes SEO pointless.” AI tools still find their sources through search indexes. Strong SEO is how you get into the answer.
- “Mass-produced AI content will win.” Thin, generic content is exactly what Google’s helpful content guidance warns against. Original expertise wins.
Your AI SEO checklist
- Confirm your robots.txt allows Googlebot, Bingbot, OAI-SearchBot and PerplexityBot.
- Check that your firewall or security plugin isn’t blocking legitimate AI search crawlers.
- Make sure important pages are indexed in Google Search Console and Bing Webmaster Tools.
- Add a clear, direct answer at the top of each key section and page.
- Add FAQs that match the real questions your customers ask.
- Add structured data for your business, services and FAQs.
- Complete your Google Business Profile and keep collecting reviews.
- Build a page for each core service and each area you serve.
- Show real expertise: authors, case studies, specific details and first-hand experience.
AI search is still changing quickly, but the direction is clear: the businesses that publish the clearest, most trustworthy answers get cited. If you’d like help making your website one of them, see how we approach SEO for businesses across Canada, or tell us about your business.
Frequently asked questions
What is AI SEO?
AI SEO, also called generative engine optimization (GEO), is the practice of making your website easy for AI search tools like ChatGPT, Google AI Overviews and Perplexity to find, understand and cite when they answer questions.
Is AI SEO different from regular SEO?
Mostly no. Google says there are no additional requirements to appear in AI Overviews beyond normal SEO best practices. The differences are in the details: allowing AI search crawlers, writing clear quotable answers and building a strong reputation across the web.
How do I get my business mentioned by ChatGPT?
Allow OpenAI's search crawler (OAI-SearchBot) in your robots.txt, publish clear pages that answer the questions your customers ask, keep your business details consistent online and earn mentions from trusted sites and reviews.
Do I need an llms.txt file?
It's optional. Google has said it doesn't use llms.txt for Search, and there's no evidence it's required by other AI tools. Your time is better spent on crawlability, helpful content and reputation.





