Custom annotations in Search Console

What changed

Google added the ability to mark dates in the Search Console performance charts with custom notes, so that site changes, migrations, campaigns and known algorithm updates can be read against traffic movement. Annotations are per property and visible to users with access to it. It addressed a long-standing request for context alongside the performance graph. Only the month of announcement is documented here.

Timing

Rollout began 1 November 2025. No completion date was announced. Rankings typically remain unstable for the whole rollout window, so measurements taken inside it are not a reliable read on the outcome.

What it affected