The 58% click collapse: what Google AI Overviews are doing to organic traffic
The number
Click-through rate for position-1 results on AI Overview keywords fell from 0.073 in December 2023 to 0.016 in December 2025. A 58% collapse in two years.
Ahrefs analysed 300,000 keywords using Google Search Console data over two years. Position-1 click-through rate on keywords where an AI Overview now appears fell from 0.073 in December 2023 to 0.016 in December 2025. That is a 58% drop in clicks for ranking #1.
If your business has been investing in SEO based on the old maths (top-3 organic = leads), the maths has changed.
What the cross-source data shows
Five independent studies, all 2025-2026, all pointing the same direction.
Ahrefs (December 2025), 300,000 keywords: AIO keywords lost 58% of position-1 clicks in two years. An earlier April 2025 measurement had it at -34.5%, so the trend is accelerating.
Pew Research (July 2025), 900 US adults, 68,879 searches: when an AI summary appears, users click a traditional result 8% of the time versus 15% when no AI summary appears. That is a roughly 47% drop. Click-through to the source citations inside the AI summary itself: 1%. AI Overviews appeared on 18% of all Google searches in the study. Google publicly disputed the methodology, but every other dataset below corroborates the direction.
Similarweb (July 2025): zero-click Google searches grew from 56% to 69% in the 12 months since AI Overviews launched. News publisher organic traffic fell from 2.3 billion to 1.7 billion monthly visits over the same period.
BrightEdge (16-month tracking): AI Overview presence rose from 30% to 48% of tracked queries year over year, a 58% expansion. 71% of cited volume on AIO is now informational intent, and 92% on ChatGPT.
The picture across all four sources is consistent. AI Overviews now appear on close to half of all Google searches, they cut clicks roughly in half on the queries where they appear, and the effect is getting larger, not smaller.
What it means for an Australian small business
A few practical implications most agencies have not adjusted to.
Ranking #1 below an AI Overview is worth less than being cited inside it. The old SEO maths said position-1 = ~30% click-through. The new maths says position-1 on an AIO query = ~1.6% click-through. The value transferred to the citations inside the AI summary itself, where roughly 8% of users click. If you are not the cited source, you are not in the game.
The hit lands hardest on informational queries. 71% of AI Overview citations and 92% of ChatGPT citations are informational, not transactional. Plumbers, electricians, lawyers, accountants, real estate agents and other service businesses get most of their organic traffic from how do I, what does it cost, is X worth it type queries. Those are exactly the queries getting eaten.
Brand search and direct traffic are now strategic. When click-through on generic search collapses, the traffic you can still control comes from people who already know your name. That makes name recognition (LinkedIn presence, podcasts, Reddit, BNI, AdWords on your own brand, GBP optimisation) more important than it was in 2023, not less.
Referral traffic from AI engines is small but growing. Similarweb measured ChatGPT referrals to news publishers up 25x year over year, but the absolute volume is nowhere near offsetting the organic Google losses.
What doing AI SEO actually means in 2026
The strategy has split into two tracks.
Track 1: be the cited source. Stat-rich content, schema hygiene (Article, Organization, Person), inline citations, named author, datePublished, semantic HTML, factual specificity, sentence structure that RAG retrievers can pull as a chunk. The Princeton GEO study showed up to 40% visibility lift from adding statistics alone.
Track 2: be the brand that gets searched directly. Brand search volume is the single strongest predictor of AI citation across every engine, at 0.334 correlation. That is built in places AI engines watch: Reddit, LinkedIn, YouTube, podcasts, news, Wikipedia.
Neither track is a quick win. Both compound.
Where Cluo fits
If you do not know where your business currently shows up in AI search, you cannot tell whether your existing SEO investment is still working under the new maths. Cluo's portal tracks daily visibility in ChatGPT, Gemini, Perplexity and Google in one dashboard. $50/month. Cancel anytime.
The 58% click collapse number is the cleanest answer to why bother tracking AI rankings. You are losing organic clicks whether you measure or not. Measuring is the first step in moving from organic-ranked to AI-cited.