AI SEO and Links: How Backlinks Fit Into AI Search
AI SEO explained for link builders: how Google AI Overviews, AI Mode, ChatGPT and Perplexity choose sources, and where links and brand mentions fit.
AI SEO is the work of getting your brand and pages cited or mentioned in AI-generated answers, from Google's AI Overviews and AI Mode to ChatGPT search and Perplexity. For link builders, the big question is how much links still matter when the answer is written by a model.
The honest answer is that links still matter indirectly, but they aren't the whole story. Google says there are "no additional requirements" to appear in AI Overviews or AI Mode beyond being indexed and eligible to show with a snippet, so the classic signals that help a page rank, including backlinks, still help it get found. But studies from Ahrefs suggest that mentions of your brand across the web line up with AI visibility more closely than raw backlink counts do.
The guides below cover each part of the picture, using what Google, OpenAI and Perplexity have documented and what published studies have found. Where something isn't known, they say so.
| Guide | What it answers | Role of links |
|---|---|---|
| Generative engine optimization | What GEO is and how it differs from classic SEO | Indirect: links still help pages rank and get retrieved |
| AI Overviews | How Google picks the sources in AI Overviews and AI Mode | Indirect: cited pages usually rank somewhere in Google |
| LLM SEO | How to get cited by ChatGPT, Perplexity and other assistants | Weaker than mentions in published correlation studies |
| Brand mentions | Why linked and unlinked mentions matter for AI visibility | Mentions plus links, both count for something |
All ai search guides
Generative Engine Optimization (GEO): What It Is and What Works
Generative engine optimization (GEO) is optimising content to be cited in AI answers. What the research shows, how it differs from SEO and where links fit.
How to Rank in AI Overviews (and Google's AI Mode)
How to rank in AI Overviews: what Google says about eligibility, which pages get cited according to Ahrefs data, and where backlinks fit in.
LLM SEO: How to Get Cited by ChatGPT and Other AI Assistants
LLM SEO is getting your brand mentioned and cited by ChatGPT, Perplexity and other AI assistants. What's documented, what studies show, and tools.
Brand Mentions: Why They Matter for AI Visibility and SEO
Brand mentions are references to your brand on other sites, linked or not. Why they matter for AI visibility, how to earn them and how to monitor them.