Page Size Monitoring

Alert when your page weight grows beyond acceptable limits.

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Page size monitoring measures the raw byte size of your page response and alerts when it exceeds configurable warn and critical thresholds. Page bloat slows load times and increases CDN egress costs.

How it works

Uptrue fetches your URL and measures the response body size in kilobytes. If it exceeds your warn threshold, status goes degraded. If it exceeds the critical threshold, an incident opens.

What Uptrue checks

HTTP response body size (KB)
Warn threshold
Critical threshold

Alert conditions

Page size exceeds warn threshold (degraded)
Page size exceeds critical threshold (down)
Why this matters

Unnoticed asset additions, image uploads without compression, or third-party script bloat can double your page weight. Monitoring catches it before it affects user experience and Core Web Vitals.

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Got questions?

Frequently asked questions

Everything you need to know about Uptrue — no fluff.

What thresholds should I set?
Typical: warn at 1MB, critical at 3MB for HTML pages. For APIs, much lower (warn 100KB).
This measures the raw HTML response only. Full page weight including assets is measured by Lighthouse tools.
Related Monitor Types
Response Time Threshold MonitoringHTTP/HTTPS Uptime Monitoring

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