Lighthouse

Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.

Chrome ExtensionsTool

Resource info

Host

chrome.google.com

WhatFont is the easiest way to identify fonts on web pages.

WhatRuns helps you discover what runs a website. Frameworks, Analytics Tools, Wordpress Plugins, Fonts - you name it.

Web Developer: Adds a toolbar button with various web developer tools.