Google Lighthouse!

* Music and sound effect playback * Mouse, touch and keyboard input * The TriplePlay https://github.com/threerings/tripleplay
library builds on PlayN to provide a UI toolkit, tweened animations, keyframe animation, particle systems, and much more * Read an overview of the PlayN functionality * Build and run the demos docs/#demos

Google Lighthouse alternatives

  • Fiddler

  • Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP(S) traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler includes a powerful event-based scripting subsystem, and can be extended using any .NET language.

    tags: capturing-data debugger http-monitoring http-traffic proxy-server
  • Gtmetrix

  • 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.

    tags: optimization page-speed performance-monitoring web-optimization webmaster
  • PageSpeed Insights

  • PageSpeed is addon for Firebug (debugger addon for Mozilla Firefox ) for analyzing of page loading process and suggesting to webmaster how speed up page loading. Javascript obfuscating, image resizing, CSS merging and vise versa.

    tags: development optimization web-development web-optimization
  • WebPagetest

  • Run a free website speed test from multiple locations around the globe using real browsers (Firefox, IE, Chrome, Android and iOS) and at real consumer connection speeds. You can run simple tests or perform advanced testing including multi-step transactions, video capture, content blocking and much more. Your results will provide rich diagnostic information including resource loading waterfall charts, Page Speed optimization checks and suggestions for improvements.

    tags: optimization optimize performance-testing web-analytics-speed-test web-development
  • DareBoost

  • Without any installation, we continuously analyze your web pages to detect quality and loading times issues. At any time, you can see the evolution of the major performance indicators of your pages on your dashboard, or in your weekly emailed reports.

    tags: conversion-optimization optimization optimize page-speed performance-testing
  • Yellow Lab Tools

  • Yellow Lab Tools checks a website for both it's performance and the quality of the HTML, CSS and JavaScript code.

    tags: check-website development performance-testing quality-assurance quality-control
  • Site monitoring

  • Free open-source website monitoring software, easy to set up and use for monitoring web sites. You can monitor single web pages, multiple web pages, pages in sitemap and even your whole web site using spider. You can check HTTP result codes and even contents of the checked pages. Website checking is done periodically using build-in cron mechanism. In case of a check failure, application will automatically send email to site administrator.

    tags: application-monitoring monitoring monitoring-software page-speed server-monitoring
  • Yahoo! YSlow

  • YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. YSlow is a Firefox add-on integrated with the Firebug web development tool. YSlow grades web page based on one of three predefined ruleset or a user-defined ruleset. It offers suggestions for improving the pages performance, summarizes the pages components, displays statistics about the page, and provides tools for performance analysis, including Smush.itâ„¢ and JSLint.

    tags: browser-extension optimization web-optimization
  • Site Relic

  • Site Toolbox for the website owner, web engineer, SEO analyst, web developer, webmaster and everyone.

    tags: screenshot-generator screenshots speed-analysis speedtest website-analysis
  • PageSpeedAlarm.com

  • Get free notifications if your page speed changes, fast and easy.

    tags: Discontinued alarm alarm-software insights notifications
  • StatusCake Tools

  • StatusCake Tools allows you to check the speed and load time of your website. Simply enter the website URL and check one of the locations from around the world you want the website checked from.

    tags: performance-testing web-analytics-speed-test
  • neXpert

  • neXpert is an add-on to Fiddler Web Debugger which aids in performance testing web applications. neXpert was created to reduce the time it takes to look for performance issues with Fiddler and to create a deliverable that can be used to educate development teams.

    tags: fiddler
  • Raven Tools Site Auditor

  • Site Auditor analyzes your site to find all of the SEO issues that may be keeping your site from ranking on search engines.

    tags: optimization performance-testing web-optimization pagespeed