https://tedfactory.com/en/tags/google-analytics/Recent content in Google Analytics on Ted FactoryHugoenSun, 19 Jul 2026 20:04:48 +0900https://tedfactory.com/en/notes/essays/ga-traffic-drop-investigation/Fri, 17 Jul 2026 00:00:00 +0900https://tedfactory.com/en/notes/essays/ga-traffic-drop-investigation/<h1 id="hunting-down-an-active-user-crash--bots-illusions-and-an-indexing-collapse">Hunting Down an Active-User Crash — Bots, Illusions, and an Indexing Collapse<a class="anchor" href="#hunting-down-an-active-user-crash--bots-illusions-and-an-indexing-collapse">#</a></h1> <p>2026-07-17</p> <p><img src="https://tedfactory.com/images/notes/ga-traffic-drop-investigation-cover.png" alt="Investigating the active-user crash" /></p> <p>The active-user graph in GA (Google Analytics) was falling fast. Few charts sink a blogger&rsquo;s heart quite like that one. Were readers leaving? Had the domain migration gone wrong? Was something broken in the setup? I handed the whole investigation over to Claude Code, and the results were quite different from what I expected. Most of the crash turned out to be an illusion — while the real problem was quietly unfolding somewhere else entirely.</p>