Uptime monitoring answers "is it up?" Performance monitoring answers "is it fast enough?" — and a slow site that’s technically "up" can lose just as many visitors and conversions as one that’s down.
What to track alongside uptime
- Response time trends over time (a slow creep is often missed until it’s severe)
- Core Web Vitals (LCP, INP, CLS) for real user experience and SEO impact
- Error rate, not just hard failures — a site returning 200s but with broken functionality won’t trip a basic uptime check
FAQ
Do search engines actually penalize slow sites?
Page experience (including Core Web Vitals) is a confirmed ranking factor, though content relevance still weighs more heavily — speed is a tie-breaker, not a silver bullet, but it compounds with conversion-rate impact regardless of SEO.