“Performance”
Performance Budget Builder
– Brad Frost
Squoosh
Online utility to compress images to improve performance
web.dev
Page Weight Report
This report tracks the size and quantity of many popular web page resources
Progressive Tooling
A list of community-built, third-party tools that can be used to improve page performance
Auditing Performance
– Google Developers, Web Fundamentals
Website Speed Test
Image Analysis Tool by Cloudinary
Resource Hints
What is Preload, Prefetch, and Preconnect?
Articles by Paul Lewis
– Google Developers