Alternatives to WebO (Web Optimizer) for all platforms with any license

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...

Free Web
Performance Monitoring Webmaster-tools Add a feature

18 Like
Google Lighthouse

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.

Free Open Source Mac Windows Linux
Code review Add a feature

8 Like
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.

Free Open Source Mac Windows Linux Firebug Chrome ... Firefox
No features added Add a feature

17 Like
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....

Free Open Source Web
No features added Add a feature

6 Like
WebsiteSpeedChecker.com

Website Speed Checker. Generate comprehensive speed reports for any web page to evaluate performance and efficiency recommendations.

Free Web
Performance Monitoring Webmaster-tools Add a feature

2 Like
AnalyzeSiteSpeed.com

Analyze Site Speed. Generate comprehensive speed reports for any web page to evaluate performance and efficiency recommendations.

Free Web
Performance Monitoring Webmaster-tools Add a feature

2 Like
DareBoost

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.

Freemium Web
Performance Monitoring SEO Audit Side-by-Side comparison Webmaster-tools Add a feature

17 Like
SitePerformanceTest.com

Perform and explore an in-depth website analysis. Generate a comprehensive report to evaluate performance and usability ratings complete with improvement recommendations.
- Discontinued No more site performance test. Website unavailable.
Free Web
No features added Add a feature

2 Like
SiteSpeedAnalysis.com

Site Speed Analysis. Generate comprehensive speed reports for any web page to evaluate performance and efficiency recommendations.

Free Web
Performance Monitoring Webmaster-tools Add a feature

1 Like
SiteSpeedTester.com

Evaluate the load speed and usability for any webpage. Generate a report to determine website performance with detailed efficiency recommendations and usability...

Free Web
Web-Based Add a feature

2 Like
cutestat

Website Stats and Valuation. CuteStat.com is a web service for Website Owners, Webmasters and General Internet Users to retrieve information related with Domain Name, IP...

Free Web
Web-Based Add a feature

1 Like
Site Relic

Site Relic is a FREE toolbox where you can test your website for performance & security in seconds without user registration.

Freemium Web
Screenshot Tools Add a feature

1 Like
PageSpeedAlarm.com

Be notified if your Google PageSpeed falls.
- Discontinued Now redirects to https://www.orbonline.co.uk/
Free Web
No features added Add a feature

2 Like
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...

Free Mac Windows Web
No features added Add a feature

2 Like
WScore

We are developing WScore to help Marketers, SEO Managers and Developers, just like us, to keep everything under control, from your code to your Marketing efforts, so you...

Commercial $ $ $ Software as a Service (SaaS)
Software as a Service Add a feature

1 Like