<b>Separate a personal spike from a real algorithm update</b>

<b>Separate a personal spike from a real algorithm update</b>
Not every drop is an update; most are local noise. We classified 1,600 single-page rank drops by whether peer pages moved together.
—
Isolated drop (only your page moved) ▇▇▇▇▇▇ 58%
Niche-wide move (peers moved too) ▇▇▇ 31%
Measurement artifact / personalization ▇ 11%
—
When only your URL falls while competitors hold, the cause is on your page, not in the algorithm. A true update moves the whole cohort. Reacting to isolated drops with sitewide changes treats a local infection as a pandemic.
<b>So what:</b> before responding to a drop, check whether your tracked competitors moved on the same day. No cohort move means the fix is page-level.
Benchmark of the week: 58% of rank drops are isolated to a single page, not a SERP-wide event.