AI search engines do use backlinks, but indirectly and differently than traditional SEO does. Engines that draw on Google's index, such as AI Overviews, inherit the authority that links help build, so backlinks still feed how you are ranked and understood. But AI engines also read the substance of how you are discussed, the actual text of a mention, not just the count of links pointing at you. So the honest answer is: links still matter, but as one input into authority rather than the lever they are in classic SEO, and what a source says about you can matter as much as whether it links.
How AI engines use links
Two mechanisms are worth separating.
The first is inherited authority. AI Overviews and AI Mode run on Google's search index, which has always used links as a signal of authority and relevance. A brand that has earned quality links is better positioned in that index, and therefore better positioned to be pulled into an AI Overview. Here, backlinks help much as they always have, just one step removed.
The second is textual substance. AI engines read the content of the web, so when a credible source discusses your brand, the engine takes in what is said, the context, the sentiment, the specifics, not only the fact that a link exists. A thoughtful mention that describes what you do well can inform how an engine represents you even if the link is nofollowed or absent. This is the part traditional SEO did not fully reward.
Why the substance matters more than the count
In classic SEO, links are a direct, heavily weighted, and countable ranking factor, which is why link building became a numbers game. AI search shifts the emphasis.
Because engines read the meaning of a mention, a smaller number of substantive references on relevant sources can outweigh a large pile of thin links. An unlinked but accurate description on a respected industry site contributes to how you are understood; a hundred low-quality links contribute little and can resemble the manipulative pattern engines discount. The signal AI engines value most is the one hardest to fake: being genuinely and accurately discussed where your category lives. This is why brand authority in AI search is broader than a backlink profile, and why SEO remains necessary but not sufficient.
What to do about backlinks
Stop counting links and start earning mentions. Aim to be referenced, accurately and favourably, on the sources your category actually reads: industry publications, credible reviews, the communities where buyers discuss options. Genuine mentions tend to bring links with them, and they bring the substance AI engines read on top.
Avoid the old numbers game. Buying or spamming links is low-value for AI search and risks looking like the low-quality pattern engines discount. The durable path is to be worth mentioning, which builds the links, the citations, and the authority together. Backlinks are a byproduct of being genuinely present and useful, not a target to chase for its own sake.
Key Takeaways
- AI search engines use backlinks indirectly: engines on Google's index inherit the authority links help build, so links still feed how you are understood
- AI engines also read the substance of a mention, its context and specifics, not just the count of links, which is a real shift from classic SEO
- An accurate unlinked mention on a credible source can help, because AI engines read text; in traditional SEO an unlinked mention passes no link equity
- A few substantive references can outweigh many thin links, and manipulative link building can resemble the low-quality pattern engines discount
- Earn genuine mentions where your category is discussed; links and citations follow, and backlinks are a byproduct of being worth mentioning, not a target to chase