The April follow-up made the useful sequence much clearer: before the 14-page SEO test, during the test, and after the sitewide rollout to 834 exercise pages, the numbers kept moving in the same direction.
On February 27, 2026 I ran a controlled SEO enrichment test on 14 grammar exercise pages. By March 15 they were improving about twice as fast as the rest of the site, which was enough to roll the pattern out everywhere.
Five months in and english-exercises.org has gone from a handful of visitors to 700+ daily clicks. Bing loves us, ChatGPT recommends us, and students from Mexico to Uzbekistan are doing our exercises.
How I built a template system for creating grammar exercises that target real student errors, scaling from 50 manual exercises to 650+ whilst maintaining pedagogical quality.