Google AI Mode’s Second Most-Cited Domain, Data Finds

Google.com has quietly become the second most-cited domain in Google’s AI Mode, according to fresh data from Profound, an AI-visibility platform that helps brands track their presence across AI-driven search results. The report reveals that citation share for google.com surged 8.4 times between April 15 and June 30, with nearly all of that growth concentrated in two specific Google-hosted surfaces: Business Profile cards and Product Knowledge Panels.

Citation share measures how often a domain appears as a source in AI Mode responses. From April through June, google.com climbed to the number two spot, driven almost entirely by these two subpaths. The jump is especially pronounced in local searches and product searches. For local queries, the Business Profile card provides citations, and the analysis identified five sectors where this shift is most dramatic: hospitality and travel, home services, restaurants and dining, real estate, and healthcare. In product searches, the Product Knowledge Panel plays a similar role. When users compare products, check compatibility, or look for specifications, AI Mode often displays the panel rather than linking directly to a retailer or brand website.

This pattern is not new. Google’s AI responses have consistently favored its own pages for more than a year. In March, SE Ranking data, reported by SEJ, found that Google accounted for 17% of 1.3 million citations in AI Mode, rising to roughly 20% when YouTube was included. Profound uses a comparable citation-share metric but analyzed different datasets and timeframes. Both studies confirm that Google properties appear frequently in AI Mode citations. In May 2025, SEJ reported that 43% of AI Overview responses referenced Google’s own results, an earlier example of self-citation. These are recorded as google.com citations at the domain level, even when the card displays information about other businesses or products. The data suggests that growth is concentrated in these two card types, not in links to Google’s organic search results.

Profound interprets the rise in Product Knowledge Panel citations as an early signal of Google’s Universal Commerce Protocol, though it stops short of confirming that the panels in its dataset are UCP-enabled. Google describes UCP as an open standard that enables direct purchases across AI Mode and Gemini, with retailers acting as the Merchant of Record. The connection between the panels in the data and Google’s UCP buying process is Profound’s interpretation, not an official confirmation from Google.

Citation share indicates what AI Mode links to, not where traffic actually goes. An increase in google.com citations does not necessarily mean a visit to your website was replaced. Instead, it shows that for local or product queries, AI Mode might cite a Google-hosted card displaying your hours, photos, reviews, or product details rather than your own page.

Looking ahead, much of what AI Mode cites for local and product queries is Google’s own properties, not independent websites. That squeezes publishers and brands in the same way every self-citation pattern does: the citation lands on Google’s own surface instead of an outside site. However, these cards are a lever built from data you control, like your Business Profile for local results and product feed for shopping. This makes optimizing for these queries more manageable than sitewide efforts, as you influence data inputs directly. But it only secures presence in the cited card, which reflects citations, not subsequent clicks or sales.