User Experience on mobile might not be great yet, but I'm working on it.

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Awesome PageSpeed Metrics

⚡Metrics to help understand page speed and user experience

Here you can see meta information about this topic like the time we last updated this page, the original creator of the awesome list and a link to the original GitHub repository.

Last Update: Aug. 7, 2022, 6:11 p.m.

Thank you csabapalfi & contributors
View Topic on GitHub:
csabapalfi/awesome-pagespeed-metrics

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Lab Data (Synthetic Measurements)

Field Data (Real User Monitoring - RUM)

Critical rendering path

Long tasks

User-centric metrics

First Contentful Paint (FCP)

Largest Contentful Paint (LCP)

Specification for the LargestContentfulPaint API

60
12
9m
n/a

Cumulative Layout Shift (CLS)

A proposal for a Layout Instability specification

131
22
9m
n/a

Visually Complete

Speed Index

(Hero) Element Timing

Time to Interactive (TTI)

Total Blocking Time (TBT)

First Input Delay (FID)

A JavaScript library for measuring First Input Delay (FID) in the browser.

347
62
1y 8m
Apache-2.0

Max Potential First Input Delay

Network metrics

TCP and SSL/TLS latency

Transferred bytes

Google PageSpeed Insights score

User Timing

Server Timing

Frame rate

DOMContentLoaded

window.load