The Google algorithm sensor shows how much search results moved today compared with yesterday. High volatility across many industries at the same time is the earliest signal of an algorithm update, often days before Google confirms it. Use it together with the official update status to decide whether a traffic change on your site is a Google-wide event or a problem specific to your pages.
Live SERP volatility · United States
Google algorithm sensor
Daily volatility across 150 tracked keywords in 15 categories, top 10 results compared with the previous day. Above 5 means an unconfirmed or confirmed update is likely rolling.
Latest snapshot Sep 13, 2026 · updated daily · method: top 10 position displacement vs previous day, 0 to 10 scale
Winners
- youtube.com+31
- walmart.com+15
- abcnews.com+14
- usa.gov+13
- wellsfargo.com+12
- usnews.com+12
- jiffylube.com+10
- linkedin.com+10
Losers
- reddit.com-49
- justia.com-17
- foxnews.com-16
- facebook.com-14
- cnn.com-13
- quora.com-11
- rottentomatoes.com-10
- marcustheatres.com-10
SERP features occurrence
- People also ask94%
How to read SERP volatility
A reading between 0 and 2 is a quiet day. Between 2 and 5 is normal daily movement. Above 5, a large share of top 20 results changed position, which usually points to a Google test or an update rolling out. Above 8, the change is severe and almost always coincides with a confirmed core or spam update.
Volatility alone does not mean your site was hit. Check your own Search Console clicks and impressions for the same dates. If your rankings held but clicks dropped, look at AI Overview presence for your queries before assuming a penalty.
Latest confirmed updates
See the full Google algorithm update timeline since 2020 for every confirmed rollout.
New to volatility scores? What the score actually measures covers how it is calculated, why two trackers disagree on the same day, and why a high reading is not evidence that your own site was affected.