Oh Dear alternative? Uptime green is not Core Web Vitals portfolio monitoring

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The uptime dashboard is green, SSL is fine, and the status page is quiet, yet a client still forwards a PageSpeed Insights screenshot where mobile Largest Contentful Paint sits in Needs improvement. Nobody can explain how both truths coexist. Searching for an Oh Dear alternative feels like the next step, but that query usually returns more uptime and white-label status products, not a Core Web Vitals portfolio monitor. The gap is not that Oh Dear is weak at its job; it is treating reachability as proof that shoppers experience a fast page. Green uptime and healthy Core Web Vitals are different

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