Core Web Vitals Visualizer

Description

RUM Visualizer visualizes the Core Web Vitals for any webpage.

This extension will visualize the Core Web Vitals for any webpage. It includes the Largest Contentful Paint (LCP), First Input Delay (FID), Cumulative layout Shift (CLS), First Contentful Paint (FCP), Interaction to Next Paint (INP) and the Time To First Byte (TTFB).

Features:

LCP
- Get LCP RUM values
- Visualize the LCP.
- Break down the LCP into Time to first byte, Resource load delay, Resource load time and Element render delay

FID
- Get FID RUM values
- Visualize the FID.
- FID breakdown

CLS
- Get CLS RUM values
- Show CLS breakdown
- Visualize the CLS
- Animate the CLS.

FCP
- Get FCP RUM values
- break down the FCP

INP
- Get INP RUM values
- Visualize the INP.
- INP breakdown

TTFB
- get TTFB RUM values
- breakdown the TTFB

Easy debugging:
- Emulate slow network conditions (3g).
- Enable or disable Caching for the current page.

changes:
1.2 added lots of LCP information like preloading, fetchpriority, rendering breakdown, first or third party etc.
1.4 left side menu, more information about render blocking resources and direct links to PSI, CrUX dashboard and W3C.
1.5 code improvements, layout improvements, added page experiments (defer javascript, disable javascript, disable third party scripts, lazy load images, defer background images & disable webfonts)