The Immovable Number
When we started scanning at 500K, WordPress was 73%. We assumed it would shift — maybe the broad web was more diverse, maybe edge cases would dilute it, maybe non-English domains would show different patterns. None of that happened. At every scale milestone, the number came back to 73%. Plus or minus 0.03 percentage points.
What Convergence Means
A number that doesn't move with sample size isn't an artifact. It's a structural constant. WordPress at 73% of the detectable web is as stable as a physical measurement. It doesn't matter whether you scan 2 million or 7 million sites — the answer is the same. This tells us our sample is representative and the finding is real.
The Other Constants
WordPress isn't the only immovable number. Shopify: 9.6% (±0.1pp). Drupal: 4.1% (stable). Next.js: 3.0% (stable). Angular: 1.8% (stable). The entire framework distribution locked in at around 2M detections and hasn't changed since. The web's infrastructure composition is fixed at this scale. Only massive industry shifts — not more scanning — will change these numbers.
