
Description: YSlow is a Firefox and Chrome browser extension that analyzes web pages and suggests ways to improve their performance based on Yahoo!'s performance best practices. It grades performance and provides tips to optimize page load speed.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: KeyCDN Tools is a free suite of web performance and SEO tools to help website owners optimize their sites. It includes tools to analyze page speed, check security settings, test mobile-friendliness, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API