LLM SEO
& GEO:
GET CITED
BY AI.

First: is this actually real?

Yes — and it is moving fast. AI-referred website sessions jumped 527% in 2025 alone. ChatGPT now processes over 3 billion prompts monthly. Perplexity has indexed over 200 billion URLs. Google AI Overviews now appear on more than half of all search results pages.

When someone searches "best freight broker in South Carolina" or "women's boutique Greenville SC" in ChatGPT or Perplexity, those systems pull answers from websites — and cite the ones they trust. Your site is either in the answer or it isn't.

This is why the SEO work you do today matters more than ever. Not just to rank on Google — but to get cited by every AI system that's rapidly replacing Google for millions of queries.

What is GEO — and how is it different from SEO?

GEO (Generative Engine Optimization) is the practice of optimising your content so that AI systems can understand, retrieve, and cite it in their generated answers. LLM SEO is the same concept with a slightly different name.

Traditional SEO: you optimise to appear in Google's blue link results.
GEO: you optimise to be cited inside the AI answer itself — before anyone even clicks a link.

The critical point: GEO does not replace SEO. It extends it. Every technical SEO fix, every well-written page, every piece of schema markup — that work also builds your AI visibility. The foundations are the same. The execution gets more specific.

How LLMs actually decide what to cite

Different AI systems use different signals. Here is what the research shows:

ChatGPT favours structured, authoritative sources

Nearly 48% of ChatGPT's citations come from Wikipedia — which tells you everything about what it trusts: clearly structured content with defined entities, consistent formatting, and verifiable facts. For your website, this means writing like an authority, not like a salesperson.

Perplexity favours conversational, community-based content

Perplexity pulls heavily from Reddit and community forums (46.7% of citations). It rewards content that sounds like a real person answering a real question with practical experience. Write in a direct, conversational voice. Use first-person examples. Answer the actual question in the first paragraph.

Google AI Overviews blend both

Google's AI Overviews pull from a mix of authoritative pages and lived-experience content. Reddit accounts for 21% of citations. Well-structured blog posts and FAQ pages rank highly. Pages with FAQPage schema are 3.2x more likely to appear in AI Overviews.

The 7 signals that get you cited by AI

1. Answer-first content structure

44% of all LLM citations come from the first 30% of a page — the introduction. Lead with the answer, then expand. Do not bury your main point. Every blog post, service page, and FAQ entry should open with a direct, concise answer to the question it's addressing.

2. Structured content formatting

Use descriptive H2 and H3 headings. Use numbered lists and bullet points for steps and comparisons. Keep paragraphs to 40–60 words. Dense walls of text perform worst for AI citation. Structured content (headings, lists, FAQ format) is the single most effective format for AI search.

3. Schema markup (JSON-LD)

FAQPage schema is particularly powerful — pages with it are 3.2x more likely to appear in Google AI Overviews. Article schema tells AI exactly what type of content it's reading, who wrote it, and when. Organization schema establishes your brand entity. All of this makes it dramatically easier for AI to extract and cite your content accurately.

Important nuance: research shows ChatGPT and Perplexity read schema markup the same way they read any page text. The value isn't magic — it's that schema forces you to clearly label your content, which helps AI parse it correctly regardless of how it processes the markup.

4. Third-party brand presence

Domains with profiles on Trustpilot, G2, Yelp, and Capterra have a 3x higher chance of being cited by ChatGPT than those without. Brand search volume is the strongest single predictor of LLM citations — stronger than backlinks. Get listed everywhere that matters for your industry.

5. Statistics and citations in your content

Adding data-backed statistics to your content increases AI visibility by 22%. Using quotations from experts or customers boosts it by 37%. AI systems are trained to cite sources that cite sources. Reference studies, include specific numbers, and quote real people.

6. Fast page load speed

Pages with a First Contentful Paint under 0.4 seconds average 6.7 AI citations. Slow pages (over 1.13 seconds) average just 2.1. Speed is not just a UX factor — it is now directly linked to whether AI systems bother to crawl and cite your content at all.

7. Content freshness

85% of AI Overview citations were published in the last two years. 50% of Perplexity citations are from 2025 alone. AI systems heavily favour recent content. Add "Last updated" dates to your pages, refresh key articles regularly, and keep your blog active. A post from 2019 is practically invisible to AI search.

What this means for your website right now

The good news: if you fix your SEO, you fix your AI visibility at the same time. The bad news: if your site has no meta descriptions, no schema, no structured content, and no third-party presence — you are invisible to both Google and every AI system simultaneously.

Here is the order of priority:

• Fix the technical foundation first (title tags, meta descriptions, schema, speed)
• Rewrite content to be answer-first with clear headings and short paragraphs
• Add FAQPage schema to every service page and blog post
• Get listed on industry directories, review platforms, and local citations
• Publish fresh, statistics-backed content regularly
• Allow AI crawlers in your robots.txt (GPTBot, ClaudeBot, PerplexityBot)

Allow AI crawlers in your robots.txt

This is one most businesses miss entirely. If your robots.txt file blocks AI crawlers, you cannot be cited — period. Make sure these are explicitly allowed:

User-agent: GPTBot Allow: /
User-agent: ClaudeBot Allow: /
User-agent: PerplexityBot Allow: /
User-agent: Google-Extended Allow: /

Our robots.txt at defacedworld.com explicitly allows all of these.