
Description: Ahrefs is a popular SEO toolset that provides detailed backlink analysis, site auditing, rank tracking, content analysis, and keyword research features. It aims to help websites improve their search engine visibility and ranking.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GTmetrix is a free online tool that analyzes web pages for performance, providing a performance score and recommendations to improve speed.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API