Knowledge Graph Sensor
Knowledge Panel

Google Knowledge Graph Sensor

Here we are measuring the volatility of Google's Knowledge Graph. The data shows periodic data refreshes, algorithm updates and growth.

Read my analysis of this on Search Engine Journal >>

Why Knowledge Graph Volatility Threatens AI Narrative

The Algorithmic Trinity relies on Knowledge Graph stability:

When KG is Stable
  • LLM confidently references facts
  • Search results reinforce understanding
  • AI gives consistent answers
During Volatility Spikes
  • Entity confidence scores fluctuate
  • Related entities change
  • AI narrative becomes unstable
After Updates
  • Winners gain visibility
  • Losers lose entity recognition
  • Competitive landscape shifts

Google's Knowledge Vault Algorithm Updates

  • Friday 19 September 2025
  • Saturday 27 September 2025
  • Tuesday 7 October 2025
  • Friday 10 October 2025
  • Wednesday 15 October 2025
  • Thursday 16 October 2025
  • Wednesday 22 October 2025
  • Thursday 30 October 2025
  • Friday 31 October 2025
  • Thursday 6 November 2025
  • Saturday 15 November 2025
  • Wednesday 10 December 2025

Note: Google has multiple Knowledge Graphs. Here we are measuring Google's Main Knowledge Graph / Knowledge Vault.

How are we Measuring Knowledge Vault Changes?

We have a system that tracks the number of related entities, the confidence score returned by the Knowledge Graph API and several other data points on a dataset of several thousand known Entities. We have isolated three insightful aspects of these changes and measure them daily. We measure:

  1. Magnitude: How many entities saw an increase or decrease (reach/breadth).
  2. Amplitude: How significant that change, in confidence scores of the affected entities, was on a micro-level (scope/height).
  3. Size: How many entities the Knowledge Vault contains.
The graph below shows Magnitude (Volatility) in purple, and Size in red. We are using amplitude and many other measurements internally as part of the paid Kalicube Pro platform and won’t be adding that publicly in the foreseeable future.

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