Appliance Error CodeDatabase
Site performance

Measure this page’s Core Web Vitals signals

Run a local device/session performance check and document the performance rules used around ads and interactive tools.

LCPMeasuring…

Good ≤ 2.5s

INPInteract with the page

Good ≤ 200ms

CLSMeasuring…

Good ≤ 0.1

NavigationMeasuring…

This device/session only

Ad and tool performance rules

  • Ads should stay outside diagnostic forms, buttons and navigation-like controls.
  • Image/OCR libraries load only when the scanner is used.
  • The service worker caches core data and pages progressively rather than pre-caching hundreds of HTML documents.
  • Owner monitoring should use field data once real traffic exists; this page is a single-device diagnostic.