Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO and more.
SEO PowerSuite is a set of 4 tools, Rank Tracker, WebSite Auditor, SEO SpyGlass, and Link Assistant, that help with all types of SEO activities, from keyword research to on-page optimization and link building.
SEO PowerSuite Features
Semrush is a leading online visibility management software-as-a-service platform.
GTmetrix is a free tool that analyzes your page's speed performance. Using Page Speed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.
PageSpeed Insights (PSI) reports on the performance of a page on both mobile and desktop devices, and provides suggestions on how that page may be improved.
Get realtime website performance tests generated from real user experience on your website. Request Metrics gathers performance data from your actual users, rather than a synthetic test, so you know whether your site is really fast.
Request Metrics Features
DareBoost is an online tool to test, analyze and monitor your website: speed, SEO, quality, security. All you need for website optimization in a single service.
Seo analysis of any website for its backlinks, top keywords in search, traffic analysis, ranking & worth estimations, whois data, page speed time, server response and much more all for free.
Screpy is an AI-based web analysis tool that can analyze all pages of your websites in one dashboard and monitor them with your team. It's powered by Lighthouse and it also includes some different analysis tools (SEO, SERP, W3C, Uptime, etc).
WebTotem is a SaaS which provides powerful tools for securing and monitoring your website in one place in easy and flexible way.
B.S. Detector is a browser extension that warns users about unreliable news sources. It basically searches all links on a given webpage for references to unreliable sources, checking against a manually compiled list of domains.Discontinued
Extension don't exist and repo in Github not updated since 6 years. Aeems abandoned