Semrush Sensor
9.4Storm+3.2 vs consensus
Raw 9.4 0–10 · published Oct 7
Google Search Volatility Aggregator Tool
Is Google shaking up rankings right now? This page combines 6 live public volatility trackers into one 0–10 reading and checks it against Google's own confirmed updates. Free, no signup, refreshed every few hours. Built by Vijay Chauhan SEO.
Live nowUpdated Oct 7, 06:11 PM UTC
6.2/10
High
+0.2 since yesterday
Google's September 2026 spam update is rolling out
Google confirmed it on its Search Status Dashboard 14 days ago. 2 of 6 live trackers sit within 2 points of the consensus. Spam updates hit specific sites rather than reshuffling everything, so trackers often disagree during the rollout.
What to do
- Hold large site changes (migrations, template rewrites) until the rollout completes, so you can tell your changes apart from Google's.
- Add an annotation for 2026-09-24 in GA4 and your rank tracker.
- If traffic drops, check which pages lost it and compare them against Google's spam policies before changing anything.
Where each tracker sits today0 calm · 10 storm
- Mozcast10.0
- Advanced Web Ranking10.0
- Semrush Sensor9.4
- Zutrix Tension7.6
- AccuRanker Grump5.9
- CognitiveSEO Signals3.7
- Algoroo0.8
consensus agrees (±2)
- Agree
- 2/6
- Reporting
- 6/8
- 7-day
- -11%
Volatility is down 11% week-over-week, led by Zutrix Tension (-2.3).
The last 30 days
The white line is the consensus of every tracker. Shaded columns are Google's confirmed updates. Pick a tracker below the legend to compare it against the pack.
ConsensusMiddle half of trackersCore updateSpam update
Compare
View the daily numbers as a table
| Date | Consensus | Semrush Sensor | Mozcast | Algoroo | AccuRanker Grump | Advanced Web Ranking | CognitiveSEO Signals | Zutrix Tension |
|---|---|---|---|---|---|---|---|---|
| Oct 7 | 5.4 | 9.4 | — | 0.8 | — | 5.2 | 3.7 | 7.6 |
| Oct 6 | 5.3 | 9.4 | — | 1.0 | 5.9 | 4.8 | 3.6 | 6.9 |
| Oct 5 | 4.9 | 7.6 | — | 0.8 | 5.9 | 4.7 | 3.5 | 6.7 |
| Oct 4 | 5.3 | 7.2 | — | 0.8 | 6.2 | 4.5 | 3.5 | 9.9 |
| Oct 3 | 5.3 | 3.2 | — | 0.8 | 5.7 | 3.8 | 3.4 | 9.9 |
| Oct 2 | 5.8 | 6.4 | — | 0.8 | 5.9 | 4.6 | 3.4 | 9.9 |
| Oct 1 | 6.3 | 9.3 | — | 0.7 | 5.9 | 4.4 | 3.8 | 9.9 |
| Sep 30 | 6.1 | 9.1 | 10.0 | 0.6 | 5.8 | 4.1 | 3.3 | 9.9 |
| Sep 29 | 5.5 | 5.4 | 10.0 | 0.6 | 5.9 | 3.6 | 3.2 | 9.9 |
| Sep 28 | 5.8 | 6.6 | 10.0 | 0.6 | 6.6 | 3.9 | 3.2 | 9.9 |
| Sep 27 | 6.4 | 7.6 | 10.0 | 0.7 | 10.0 | 3.4 | 3.4 | 9.9 |
| Sep 26 | 7.4 | 9.4 | 10.0 | 0.7 | 10.0 | 4.1 | 7.9 | 9.9 |
| Sep 25 | 6.5 | 9.4 | 7.6 | 0.8 | 7.1 | 3.2 | 7.8 | 9.9 |
| Sep 24 | 4.1 | 2.2 | 3.2 | 0.7 | 6.9 | 4.3 | 5.1 | 6.5 |
| Sep 23 | 4.1 | 2.0 | 3.8 | 0.8 | 6.6 | 3.4 | 6.5 | 5.7 |
| Sep 22 | 3.7 | 1.0 | 2.4 | 0.8 | 6.5 | 3.0 | 6.5 | 5.7 |
| Sep 21 | 3.9 | 1.8 | 2.6 | 0.7 | 7.2 | 3.1 | 4.6 | 7.1 |
| Sep 20 | 4.5 | 3.1 | 4.4 | 0.8 | 8.0 | 3.3 | 5.1 | 6.9 |
| Sep 19 | 5.1 | 5.5 | 6.8 | 0.7 | 8.2 | 3.6 | 4.8 | 6.4 |
| Sep 18 | 5.5 | 5.1 | 7.6 | 0.9 | 7.5 | 3.9 | 6.1 | 7.4 |
| Sep 17 | 5.2 | 4.5 | 6.8 | 0.9 | 7.2 | 3.8 | 6.6 | 6.8 |
| Sep 16 | 4.8 | 4.1 | 8.8 | 0.7 | 5.3 | 2.0 | 6.4 | 6.0 |
| Sep 15 | 3.7 | 2.1 | 3.8 | 0.6 | 4.2 | 2.5 | 6.6 | 6.3 |
| Sep 14 | 3.3 | 0.6 | 3.8 | 0.7 | 3.7 | 2.1 | 6.6 | 5.8 |
| Sep 13 | 3.1 | 0.7 | 2.0 | 0.6 | 4.3 | 1.9 | 6.6 | 5.8 |
| Sep 12 | 3.1 | 0.7 | 2.0 | 0.5 | 5.2 | 1.4 | 6.4 | 5.4 |
| Sep 11 | 3.8 | — | — | 0.7 | 5.7 | 1.7 | 7.4 | 6.3 |
| Sep 10 | 3.6 | — | — | 0.6 | 5.5 | 1.6 | 8.1 | 4.8 |
| Sep 9 | 3.5 | 2.5 | 2.0 | 0.7 | 5.1 | 1.4 | 7.3 | 5.7 |
| Sep 8 | 3.2 | 1.7 | 2.0 | 0.9 | 4.9 | 1.1 | 7.7 | 4.2 |
Every tracker
Each tool watches its own keywords and countries, so they rarely match exactly. All values are converted to the same 0–10 scale.
Mozcast
10.0Storm+3.8 vs consensus
Raw 184 °F · stale since Sep 30
Algoroo
0.8Calm-5.4 vs consensus
Raw 0.81 roo · published Oct 7
AccuRanker Grump
5.9Active-0.4 vs consensus
Raw 11.76 grump · published Oct 6
Advanced Web Ranking
10.0Storm+3.8 vs consensus
Raw 10 0–10 · published Oct 7
CognitiveSEO Signals
3.7Normal-2.5 vs consensus
Raw 37 0–100 · published Oct 7
Zutrix Tension
7.6High+1.4 vs consensus
Raw 7.6 tension · published Oct 7
Serpstat Storm
No public data feed yet. Open the source to see today's reading.
Explore in 3D
Every tracker as a planet orbiting the consensus: bigger and hotter means more volatile. Drag to rotate, click a planet for details.
What is Google search volatility?
Google search volatility is a measure of how much search engine results pages (SERPs) change from one day to the next. Google continuously refines its ranking systems — through major core updates, targeted spam updates, and countless smaller adjustments — and each change can reshuffle which pages rank where. A SERP volatility tracker quantifies that movement: the more rankings shift across a tracked set of keywords, the higher the volatility reading.
No single tracker tells the whole story. Each tool watches a different set of keywords, in different countries and categories, and reports on its own scale. This Google search volatility aggregator brings the major public trackers together, normalizes every reading to one shared 0–10 scale, and computes a single consensus — so you can see the broad picture at a glance instead of checking a dozen tools.
How to read the volatility aggregator
The big number at the top is the average of every live tracker on the 0–10 scale. As a rough guide: 0–2 is calm, 2–4 is normal, 4–6 is active, 6–8 is high, and 8–10 is storm-level volatility. The single most useful signal is agreement: when several independent trackers spike on the same day, it's strong evidence of a real, broad Google algorithm update. When just one tool moves while the rest stay flat, it's usually that tool's own keyword noise rather than a Google-wide change.
Recent confirmed Google updates
Pulled from Google's Search Status Dashboard. Line these dates up with the 30-day chart above to see how each tracker reacted.
| Update | Started | Completed |
|---|---|---|
| September 2026 spam update | Sep 24, 2026 | Rolling out |
| August 2026 spam update | Aug 18, 2026 | Aug 21, 2026 |
| June 2026 spam update | Jun 24, 2026 | Jun 26, 2026 |
| May 2026 core update | May 21, 2026 | Jun 2, 2026 |
| March 2026 core update | Mar 27, 2026 | Apr 8, 2026 |
| March 2026 spam update | Mar 24, 2026 | Mar 25, 2026 |
For every confirmed update since 2011, with what each one targeted, see the Google algorithm updates history.
What each tracker measures
| Tracker | What it measures |
|---|---|
| Mozcast | A 'weather temperature' for the SERP — hotter days mean more ranking change across its keyword set. |
| Algoroo | A 'roo' flux score from DEJAN that sums ranking movement across a tracked keyword set. |
| Semrush Sensor | A 0–10 volatility score broken down by category, device, and country. |
| AccuRanker Grump | A 'Grump' rating — the grumpier the tiger, the more volatile the rankings that day. |
| Advanced Web Ranking | A daily fluctuation index built from a large keyword sample. |
| CognitiveSEO Signals | A fluctuation signal that flags days with unusual ranking movement. |
| Zutrix Tension | A 'tension' score with a risk level indicating how turbulent the SERP is. |
Frequently asked questions
What is Google search volatility?
Google search volatility measures how much search engine results pages (SERPs) change from one day to the next. When Google adjusts its ranking systems — through a core update, spam update, or smaller ongoing tweaks — rankings shift, and volatility tracking tools quantify how big that movement is. High volatility usually means a lot of pages are moving up or down in the results.
What is a SERP volatility tracker?
A SERP volatility tracker monitors a fixed set of keywords every day and calculates how much the top results changed compared to the previous day. Each tool — Mozcast, Algoroo, Semrush Sensor, AccuRanker and others — reports the result on its own scale. This aggregator normalizes them all to a single 0–10 scale so you can compare them side by side.
How do I know if there's a Google algorithm update?
The strongest signal is agreement across tools. If several independent volatility trackers spike on the same day, that's strong evidence of a real, broad algorithm update. If only one tool spikes while the others stay flat, it's more likely that tool's own keyword set or measurement noise rather than a Google-wide change.
What does the 0–10 scale mean?
Every tracker uses a different native unit (Mozcast reports a 'temperature' in °F, Algoroo reports a 'roo' value, Semrush uses 0–10, and so on). To compare them fairly, each reading is mapped to a shared 0–10 scale where roughly 0–2 is calm, 2–4 is normal, 4–6 is active, 6–8 is high, and 8–10 is storm-level volatility.
Which volatility tools does this aggregator include?
It pulls live readings from public sources including Mozcast (Moz), Algoroo (DEJAN), Semrush Sensor, AccuRanker Grump, Advanced Web Ranking, CognitiveSEO Signals, and Zutrix Tension, with more sources added over time. Each tracker links back to its original source.
How often is the data updated?
The page re-checks every source about every six hours. Most trackers publish one reading per day, and not all on the same day, so the consensus uses each tracker's most recent reading from the last three days rather than letting one early publisher swing the number.
Is there a Google algorithm update right now?
Check the banner at the top of the tool. It reads Google's own Search Status Dashboard and shows any confirmed ranking update that is still rolling out. The chart also marks every confirmed update in the last 30 days. If the trackers spike and there's no confirmed update, it may be an unannounced change or noise in individual tools.
Is this tool free to use?
Yes. It's completely free, requires no signup, and uses only publicly available volatility data from each tool's own source — no personal data and no paid data redistribution.
What should I do when volatility is high?
When volatility is high, monitor your own rankings and organic traffic closely, avoid making large site changes mid-update, and wait for the update to settle before drawing conclusions. When volatility is low, it's generally a safer window to ship content and technical changes.