Around August 12–13, site owners started reporting that impressions and clicks had suddenly dropped in Search Console, the free tool site owners use to see their search data. In many cases actual traffic hadn't moved, only the reported numbers had, which sent a wave of "did something break on my site?" questions to industry outlets.
Google's own "Data anomalies" help page settled it: "A logging error caused a decrease in impressions on the Generative AI performance report in Search for data starting on August 13, 2026. This issue affects data logging only." A related entry confirms the same logging error also reduced clicks and impressions on the Discover performance report, and impressions on Generative AI features in Discover, for August 13 data. Google's John Mueller confirmed on Bluesky that this was purely a logging issue, not an actual change in search visibility.
Why this is worth noting
It's the mirror image of the story this site covered on August 7, when several rank-tracking tools detected a spike in volatility that Google's own status dashboard never confirmed — leaving "what's certain and what isn't" unresolved. This time Google pinned down the exact dates itself (August 13–17) and has since documented the issue as resolved. Same surface symptom — numbers moved unexpectedly — but a completely different level of certainty about the cause.
It's also a different story from the one this site covered on August 14, about the Generative AI performance report's rollout to more accounts. That was about the report becoming newly available; this is about the numbers inside that same report being briefly wrong.
What's certain and what isn't — Certain: for August 13–17, the Generative AI performance report's impression counts were understated due to a logging error. The same error reduced Discover report clicks and impressions, and Generative AI in Discover impressions, for August 13 data. Google's help page marks both entries as resolved (checked August 24, 2026). Uncertain: Google never published how large the understatement was, and some outlets described the regular Search performance report as also affected — but Google's own documentation scopes the bug to the Generative AI and Discover reports only, so this article follows that scope.
If your site gets 100 visitors a week
The AI briefing site this project runs logged 65 total search impressions and zero clicks in Search Console as of August 3, 2026. At that scale, a short-term drop of even half your numbers is nearly impossible to tell apart from ordinary noise. So the practical takeaway is simple: if your own Search Console numbers suddenly look wrong, check Google's "Data anomalies" help page before you start hunting for a cause on your own site. Sometimes it's already a known, documented bug — and only once it isn't should you start suspecting something on your end, like a deindexed page or a recent content change.