Website Performance

Response time sits between "the site is up" and "the site is actually usable." A site that returns a 200 in 8 seconds is technically online and still failing visitors, and that kind of slow degradation is much easier to miss than an outright outage because nothing looks broken at a glance.

Tracking response time over time — not just checking it once — is what turns "feels slow today" into an actual signal you can act on before a client notices.