What drives AI visibility? What the research says about mentions, backlinks and YouTube
Which signals line up with a brand showing up in Google AI Overviews, AI Mode and ChatGPT? The largest public dataset so far comes from Ahrefs' 75,000-brand studies. Here are the findings, the exact correlation values and what we do with them.
By the AIO Automatic team · Last updated
What correlates most with appearing in Google AI Overviews?
Branded web mentions. In Ahrefs' study of 75,000 brands, mentions of the brand across the web had a 0.664 correlation with AI Overview visibility, ahead of branded anchors (0.527) and branded search volume (0.392). Classic link metrics were weaker: Domain Rating 0.326, referring domains 0.295 and backlink count 0.218.
Do YouTube mentions matter for AI visibility?
Ahrefs' follow-up study across ChatGPT, AI Mode and AI Overviews found YouTube mentions had the strongest correlation with AI visibility of any factor tested, around 0.737. Being talked about in videos, not only on web pages, lines up with brands that AI engines name. That is why video is part of our content format.
| Factor | Correlation | Type |
|---|---|---|
| YouTube mentions (follow-up study, all AI surfaces) | ~0.737 | Off-site, video |
| Branded web mentions | 0.664 | Off-site, text |
| Branded anchors | 0.527 | Off-site, links |
| Branded search volume | 0.392 | Demand |
| Domain Rating | 0.326 | Link authority |
| Referring domains | 0.295 | Link authority |
| Branded traffic | 0.274 | Demand |
| Number of backlinks | 0.218 | Link volume |
| Ad traffic / ad cost | 0.216 / 0.215 | Paid |
Are backlinks still worth building for AI search?
Backlinks still matter for Google organic rankings, which feed AI Overviews and AI Mode. But in Ahrefs' data, raw backlink count (0.218) correlated far less with AI Overview visibility than brand mentions (0.664). Links that come with a real mention of your brand in relevant context do more work than links alone.
Does correlation mean these factors cause AI visibility?
No. These are correlations, and big brands tend to have more of everything: mentions, links, searches and AI visibility. The practical reading is directional: earn more genuine mentions of your brand in places AI engines read, including YouTube, review sites and industry publications, and make your own pages easy to cite.
Read more about entity SEO and information gain, or see how our done-for-you AI search visibility service handles mentions and outreach.
Frequently asked questions
Who ran these studies?
Ahrefs, using its own brand and backlink data. Both studies are linked in the sources list below.
Does paying for Google Ads help AI Overview visibility?
Ahrefs found ad traffic (0.216) and ad cost (0.215) had weak correlations, similar to backlink count.
What should a business do first?
Make sure AI crawlers can read your site, publish answer-first pages, and start earning genuine mentions on YouTube, review sites and industry publications. Our free AI visibility check shows where you stand.