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Managing lastmod dates at a yoga studio
10 Sep 2025
How a yoga studio deals with lastmod dates — and what usually goes wrong.
The problem: a 404 that still returns 200. This breaks lastmod dates for a yoga studio.
For a yoga studio, the boring path won: HTTPS, a backup that we have restored once on purpose, and a calendar reminder for lastmod dates.
After the move, a 404 that still returns 200 broke search indexing for a yoga studio. Google kept serving the old pages for another nineteen days.
Complexity is the enemy of uptime. a yoga studio had three layers of proxy in front of a site that gets two hundred visits a day. We replaced it with a static page and correct lastmod dates.
The most expensive outage for a yoga studio was not a hack — it was a 404 that still returns 200. Nobody attacked anything. The config just drifted.
The real issue was not lastmod dates itself — it was a 404 that still returns 200. One feeds the other, and fixing only the visible symptom means it comes back in three weeks.
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