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How a walk-in clinic should handle DNS TTL
8 Apr 2026
How a walk-in clinic deals with DNS TTL — and what usually goes wrong.
The problem: a staging URL left in the sitemap. This is where DNS TTL breaks for a walk-in clinic.
DNS propagation is not instant, but it is not magic either. We explained to a walk-in clinic that the TTL on the old DNS TTL record was 86 400 seconds — twenty-four hours.
Fixing DNS TTL cost less than the lunch meeting where a walk-in clinic decided to wait another quarter. Waiting is never free.
Our own site had a staging URL left in the sitemap for three days before a colleague noticed. We added it to the pre-launch checklist the same afternoon.
A static site for a walk-in clinic does not need a CDN, a build pipeline, or a container. It needs correct DNS TTL and a host that stays online.
When we reviewed DNS TTL, the DNS panel showed a staging URL left in the sitemap. Two records contradicted each other, and the resolver picked one at random.
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