Since 20 August 2026, any publisher can embed a “Preferred Source” button on its pages that adds the site to a reader's preferred sources on Google, in one click and without interrupting reading (official announcement). More than 600,000 unique sources have already been chosen by users, up from more than 345,000 at the end of May. The mechanism now plays on classic results and on AI-generated answers, AI Overviews and AI Mode included: a free visibility signal that companies running their own website can no longer ignore.
The facts
- On 20 August 2026, Google announced on its official blog the rollout of an embeddable “Preferred Source” button: the reader clicks, the site joins their preferred sources and they return immediately to where they left off. The code, two lines, is published in the Search Central documentation; eligibility is set at domain or subdomain level.
- For readers who have made that choice, the site's content surfaces more often in “Top Stories”, in Discover and Google News, and carries a “preferred” badge in AI Overviews and AI Mode, Google's AI-generated search answers, which have included preferred sources since 27 May 2026 (PPC Land). Google measures that these readers are around twice as likely to click through to the site.
- More than 600,000 unique sources have been selected by users since launch, up from more than 345,000 on 27 May 2026 (Search Engine Journal), a rise of around 74% in under three months. The feature was launched in August 2025 in the United States and India, before being extended to the rest of the world and then to all languages in spring 2026 (Search Engine Land).
Why does this button also weigh on AI-generated answers?
The preferred sources mechanism was not born this week: launched in August 2025 in the United States and India for the “Top Stories” carousel alone, it had until now been confined to a separate preferences tool, which the reader had to go and find in Google's settings. On 20 August, Google extended it through a button embedded directly on publishers' pages, which removes most of the friction and explains the rapid growth in the number of sources selected.
The preference is the reader's choice, tied to their Google account, and a site has to persuade an audience to come back often enough to trigger the click. That same preference then feeds two kinds of visibility at once: more frequent display in classic results, Discover and Google News, and the “preferred” badge in AI summaries. It is a personalised signal, acting only for the readers who have chosen the site, with no global ranking boost attached. That is exactly what makes it interesting for an SEO agency in Luxembourg: at a time when AI summaries are reducing organic clicks, a lever that turns audience loyalty into measurable visibility, free of charge, on both fronts at once, is a rarity.
AIxH's view
This kind of signal confirms a trend we follow closely in our SEO & GSO practice: audience loyalty now counts as much as technical optimisation for staying visible in AI-generated answers. Embedding the button takes a few minutes; building the audience that triggers it takes editorial consistency over time. That is the hierarchy to keep in mind: the button converts loyalty that already exists, and building that loyalty is the real work. We also practise what we describe: the link to add us to preferred sources, in its script-free variant, now sits beneath each of our articles, this one included. If you want to assess where your site stands on both counts, a visibility audit by a GEO agency in Luxembourg gives a precise picture of the starting point: presence in AI answers, SEO foundation and audience signals.