Google rolled out a core update from December 11-29, 2025. Tracking tools registered it as one of the most volatile updates of 2025, with major swings across e-commerce, health, news, and reference sites.
That alone would be notable. But this update also shifted how much weight engagement carries.
Engagement quality looked like a ranking multiplier.
Analysts watching the December update — including Lily Ray’s team at Amsive and the data teams at Sistrix and Raptive — reported that sites with strong user engagement were disproportionately represented among the winners. Google publishes no thresholds, and nobody outside Google can measure long-click rates, but the pattern across winners and losers pointed one direction: engagement quality seemed to amplify the value of other ranking signals.
On the flip side, sites where users click through and quickly bounce back to the results page fared worse, consistent with the click-quality attributes (goodClicks and badClicks) documented in Google’s own leaked ranking documentation.
In other words, the quality of clicks appears to carry more weight than the raw count.
The winners and losers tell the story.
Wikipedia lost over 435 visibility points in this update. That’s significant for a site that’s dominated search results for two decades. The pattern across Wikipedia’s losses suggests that pages with high impressions but mediocre engagement are being reevaluated.
Meanwhile, e-commerce and retail brands were the biggest winners. Why? These sites tend to generate strong engagement signals: users browse products, compare options, and spend time on pages. That behavior produces exactly the kind of long clicks Google is now rewarding.
E-E-A-T pressure applies everywhere, not just YMYL.
E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) has applied to every content category since Google’s 2022 rater-guideline update; YMYL topics just carry the heaviest weighting. December’s results were a reminder: analysts singled out sites with genuine first-hand experience as among the update’s clearest winners.
This matters because E-E-A-T isn’t just about content quality — it’s increasingly tied to how users interact with that content. A page can claim expertise all day long, but if users consistently bounce back to search results after visiting it, Google now has a stronger mechanism to downgrade it.
What this means practically.
The December update made the relationship between engagement and rankings more direct than it’s ever been. If your pages earn genuine engagement — users clicking through, staying on the page, and not returning to Google to try a different result — that engagement now carries more weight in the ranking formula.
This is the difference between a page that ranks because it checks the right technical boxes and a page that ranks because real users actually find it useful.
SerpClix click orders come from real humans searching for your keyword and clicking your listing — the genuine kind of visit this update rewarded, and behavior no bot can fake. There are no guarantees in SEO, but that’s the right side of the equation to be on.
The December update didn’t invent engagement as a ranking factor. It turned the volume up.
SerpClix uses an army of over 400,000 real human clickers to boost your organic CTR. Get started with a free trial or log in to your dashboard to set up your next click order.
Please note: there are no guarantees in search engine optimization, ever. There are innumerable factors that can affect search engine rankings. All SEO efforts can involve an element of risk. SerpClix employs real human clickers, so we think our service is far less risky than trying to use automated or robotic click methods. But, like all SEO strategies, there is an element of risk because Google’s algorithm is unknown and subject to change at any time. For more information please see our FAQs.
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