Ask almost any marketer why their organic traffic is down and the answer comes quickly: AI. Google’s AI Overviews, AI Mode and chatbots like ChatGPT are answering questions that used to send clicks to websites. That is part of the story, and the data on it is real.
But it is not the whole story. New research shows that organic losses are uneven, concentrated in certain types of sites, and driven by several forces at once. Heavier ad placements, faster growth in paid search, algorithm updates and a broader shift in how people reach websites are all playing a role.
If you blame everything on AI, you may miss the parts of the decline you can actually do something about. Here is what the latest data from Search Engine Land, Ahrefs, Semrush, Search Engine Journal and Search Engine Roundtable tells us.
How Much Is Organic Traffic Really Falling?
Kevin Indig’s analysis, “Organic traffic is down, but it’s not all AI”, looked at Similarweb traffic estimates for 10,000 domains each in the US and France from September 2023 to August 2026. Between August 2024 and August 2026:
- US organic visits fell 13.2%, from 19.9 billion to 17.3 billion.
- French organic visits fell 24.4%, from 4 billion to 3 billion.
- Organic search’s share of total US traffic dropped from 20.5% to 18.3%.
- 62.5% of US sites and 66.6% of French sites saw organic declines.
A broader view from Semrush’s traffic channel study, covering more than 50,000 websites in 2025, found that total web visits were almost flat (down just 0.43%). Organic search still grew 2.38% in raw visits, but its share of traffic is shrinking because other channels are growing much faster. Organic search declined in 13 of 17 industries.
In other words, people are not using the web less. Visits are simply being spread across more channels, and organic search is getting a smaller slice.
The AI Factor Is Real
There is no question that AI features reduce clicks. Ahrefs’ updated study of 300,000 keywords found that when an AI Overview appears, position-one click-through rate is about 58% lower than it would otherwise be expected to be. An earlier Ahrefs study put the figure at 34.5%. Ahrefs notes this is a correlation based on desktop data, and other studies show varying results.
Ahrefs has also documented what it calls “The Great Decoupling”: impressions keep rising while clicks fall, because people get answers directly on the results page. Brands seeing more impressions but fewer clicks in Search Console are often seeing this effect.
Understanding how Google AI Overviews are changing SEO is essential. But AI is only one of several forces at work.
5 Reasons Organic Traffic Is Falling Beyond AI
1. More ads are pushing organic results down the page
Google’s ad business keeps growing. Indig points to Google’s Q2 2026 results: ad revenue of $63.3 billion (up 16.8% year over year), with paid clicks up 13%. In October 2025, Google also began grouping up to four text ads under a sticky “Sponsored results” header.
Indig cites research from Tom Capper at Stat showing that ad blocks roughly doubled in size across 46,000 head terms, and the average organic result now sits below the common desktop fold. Because ads appear above AI Overviews and are harder to tell apart from organic listings, Indig argues their impact is often underestimated and wrongly blamed on AI.
2. Paid search is capturing more clicks
As ads take up more space, more clicks go to paid results. Since August 2024, US paid search traffic grew about 21% and French paid search grew 17.3%, according to Indig’s data. In the US, paid search growth offset roughly 36.6% of organic losses. Semrush’s data shows the same pattern, with paid search visits growing 75.84% in 2025, far faster than organic.
For many businesses, a balanced strategy that combines SEO with well-managed PPC campaigns is now the most reliable way to protect total search visibility.
3. Algorithm and spam updates
Google’s updates continue to reshuffle rankings. Indig points to an unnamed January 2026 update that removed rankings for some sites. More recently, Search Engine Roundtable reported that Google’s September 2026 spam update ran from September 24 to October 8, about two weeks, far longer than recent spam updates. Some SEOs felt its impact resembled a core update, and Google warned that recovery can take many months.
A drop that lines up with an update date is more likely to be a ranking or quality issue than an AI issue. Reviewing the SEO mistakes that are killing traffic is a good place to start.
4. Traffic is shifting to other channels
Semrush found that referral traffic grew 53.39% in 2025, while organic social fell 8.86%. Publisher data reported by Search Engine Journal from Chartbeat shows a similar shift: dark social (links shared through messages and private channels) rose from 7.1% to 11.3% of pageviews between July 2024 and July 2026, and direct traffic rose from 13.5% to 15.9%.
Chartbeat also found that loyal readers kept overall pageviews stable even as Google Search referrals fell. As the report put it, publishers should “treat SEO as just one channel among several.”
5. Losses are concentrated, not universal
One of the most important findings from Indig’s research is that the decline is uneven. About 1% of domains account for 40.2% of all lost US organic visits. Publishers lost about 41.5% of their US organic traffic over two years, and excluding publishers, the US decline shrinks to 7.8%. Large sites lost traffic, while small sites as a group actually grew.
Industry matters too. Semrush found the steepest organic declines in healthcare (-30.09%), banking (-27.09%), education (-26.88%) and wellness (-25.64%), while apparel (+21.91%) and beauty (+19.52%) grew.
| Segment | Organic change | Source |
| US organic visits (Aug 2024-Aug 2026) | -13.2% | Search Engine Land (Indig) |
| US publishers (2 years) | -41.5% | Search Engine Land (Indig) |
| US excluding publishers | -7.8% | Search Engine Land (Indig) |
| Healthcare (2025) | -30.09% | Semrush |
| Apparel (2025) | +21.91% | Semrush |
| Publisher Google Search (Jul 2025-Jul 2026) | -40.2% | Search Engine Journal (Chartbeat) |
Not Sure Which of These Is Hurting Your Traffic?
Get a free SEO audit and find out what’s really behind your organic traffic drop.
Don’t Forget Measurement Issues
Sometimes traffic has not dropped as much as your tools suggest. In September and October 2026, Search Engine Roundtable and others reported that Google has been serving altered results to suspected scrapers, causing some rank trackers to show false drops. Before reacting, confirm changes in Google Search Console and your analytics platform. Our guide on fixing Google Search Console issues can help you read the data correctly.
What About AI Referral Traffic?
AI platforms are the fastest-growing traffic source, but they are still small. Semrush found that AI referral traffic grew 66.02% in 2025 but made up just 0.14% of total visits. Indig’s data puts AI referrals at about 2.85% of US SEO traffic. Chartbeat found AI referrals grew about 8x over two years but still made up only 0.01% of publisher traffic.
AI visitors may convert well, but for most businesses they will not replace lost organic clicks any time soon. The more realistic goal is to improve your brand visibility in AI search engines so you are part of the answer when buyers research your category.
How to Diagnose Your Own Traffic Drop
- Check the timing. Compare your drop against known algorithm and spam update dates.
- Look at the SERP. Search your top keywords and note how many ads, AI Overviews and other features now appear above your listing.
- Compare impressions and clicks. Rising impressions with falling clicks usually points to SERP features, not lost rankings.
- Segment your pages. Informational content is more exposed to AI answers than commercial and local pages.
- Benchmark against your industry. A 25% drop in healthcare means something different than the same drop in apparel.
- Verify the data. Confirm drops in Search Console and analytics before trusting third-party tools.
For a deeper checklist, see our guide to website traffic drop causes and fixes.
What to Do Next
- Focus on business outcomes like leads, sales and conversions, not just sessions.
- Build topic clusters and original content that AI cannot easily summarize.
- Strengthen owned channels such as email, community and returning visitors.
- Use paid search strategically where ads are pushing organic results below the fold.
- Track visibility in AI answers as a secondary metric, not a replacement for SEO.
Frequently Asked Questions
Is AI the main reason organic traffic is falling?
AI is a major factor, but not the only one. Ad load, paid search growth, algorithm updates and channel shifts also contribute, and their impact is often wrongly attributed to AI.
How much has organic traffic declined?
According to Kevin Indig’s Similarweb-based research, US organic visits fell 13.2% between August 2024 and August 2026. Results vary widely by site type and industry.
Which industries are losing the most organic traffic?
Semrush found the steepest declines in healthcare, banking, education and wellness. Publishers have also been hit especially hard.
Will AI referral traffic replace organic search?
Not in the near term. AI referrals are growing quickly but still make up a small share of total visits.
Is SEO still worth investing in?
Yes. Organic search is still one of the largest traffic sources. The goal is to adapt your strategy, measure what matters, and combine SEO with other channels.
Conclusion
Organic traffic is falling, and AI is a big part of the reason. But ad load, paid search, algorithm updates, channel shifts and the type of site you run all shape how much traffic you lose. Brands that diagnose their decline carefully, rather than blaming AI by default, will be better placed to recover what they can and invest wisely in what comes next.
Not sure what is driving your traffic drop? Our digital marketing and SEO team can audit your site, separate real losses from SERP changes, and build a strategy that fits today’s search landscape.
