Zero-click search doubled in 18 months
"Zero-click search" refers to searches where the user finds the answer directly in the SERP without clicking any result. Sparktoro Q4 2025: 65 % of US Google searches are now zero-click, up 25 points in 18 months. AI Overview is the main cause.
Measured traffic impact
On AI Overview-impacted queries: -18 % median organic clicks (Authoritas Q1 2026), -32 % on top-10 when user finds the answer in the overview. Informational sites are the most impacted (20-40 % traffic loss), transactional and navigational sites less (5-10 % loss).
The effect is not uniform
A brand cited as source in AI Overview sees its CTR rise 25 % on average. A non-cited brand loses 32 % of top-10 clicks. The difference is binary: cited = benefits, not cited = loses. This polarization creates huge growth gaps between brands in the same sector.
Three defense strategies
Strategy 1 — Optimize to be cited as source: H1 question, FAQ schema, extractable structure. The #1 lever, detailed in other clusters of this hub. Strategy 2 — Diversify to other organic channels: organic LinkedIn, YouTube, podcasts, newsletter. Reduce Google dependence. Strategy 3 — Convert existing traffic better: optimize landing pages, lead capture, retargeting.
What does not work
Blocking AI bots in robots.txt as retaliation is a bad strategy. It renders you invisible to AI Overview AND to ChatGPT/Claude/Perplexity, without restoring previous Google traffic. The zero-click movement is structural; ignoring it doesn't slow it down.
Traffic benchmark 2024 → 2026
Median US B2B SaaS site: 100 organic visits 2024 → 78 visits 2026 on comparable query volume. -22 % over 24 months. Sites with active GEO strategy: 100 → 95-105. Sites without strategy: 100 → 65-75.
What works — proof
US B2B mid-market brands that deployed rich schema.org + FAQ sections + Wikipedia + editorial PR between 2024 and 2026 maintain or grow their organic traffic. Brands that changed nothing lose 15-30 % of comparable traffic. The polarization is sharp at 24 months.
Emerging alternative traffic
Direct LLM-referrer traffic (visits from chatgpt.com, perplexity.ai) partially offsets Google decline. In 2026, this channel represents 1-3 % of total organic traffic for most B2B brands, but grows at +200-400 %/year. Projection: 5-10 % of organic traffic by 2028. A significant channel to anticipate and instrument starting now.
Don't panic but act
Zero-click is not the end of SEO or the end of websites. It's a redistribution. Brands that adapt (GEO optimization, channel diversification, better-piloted conversion) come out ahead. Those that watch traffic decline without acting pay the cost of delay. Investing in 2026 on GEO + conversion optimization is the rational arbitrage.