10+ Website Speed & Performance Testing Tools & Plugins

A fast loading website with good images and scripts performance is the first step to a successful online presence, but in real we use many tools , plugins, widgets in our website and those tools simply cause our website to load slow. The search engine panelizes the websites and we don’t get higher rankings in the search results due to the long response time.

Here is a list of free and open source tools and plugins that can help us to test performance and speed of our websites. With their suggestions, we can improve site’s response time.

 Website speed check

The website speed tester shows the duration of a given website. This value can be used for showing how long a website take to load and if it is better to optimize the website or change a (slow) ISP.

BrowserMob – Free Website Performance Test Tool

Test your website performance with this free cutting edge tool. This tool accesses your website from different location and generates a website performance analysis report.

PageTest

Pagetest allows you to provide the URL of a webpage to be tested. The test will be conducted from the location specified and you will be provided a waterfall of your page load performance as well as a comparison against an optimization checklist.

Compare site performance

Webslug is a tool of identifying potential problems with your website’s performance. Compare your site with your competitors or simply check yours to get some insight.

Open Source Speed Test Tool – Fancy Speed Test

Customizable open source speed test tool that performs upload and download bandwidth tests and provides Interactive user experience. To drill down more, users can restrict to particular networks / IP addresses.

Pingdom Tools

Test your page with Pingdom Tools, It’s Page Test loads a complete HTML page including all objects (images, CSS, JavaScripts, RSS, Flash and frames/iframes). The Load time of all objects is shown visually with time bars.

Site Performance Testing Tool

Get an accurate, realistic and helpful estimation of your site’s loading speed with this smart website performance testing tool. This free tool offers many features like:

• Tests from around the world
• Advanced on-the-fly HTML parsing
• Smart parallel downloads
• HTTP-compression support
• Keep-Alive support

Web Page Analyzer

A free web site speed test tool to improve website performance. It calculates page size, composition, and download time. Based on the final results it offers advices on how to improve website’s weak areas.

Self SEO

A small but handy website speed test service by self SEO. If you don’t want to dig into details, it’s a best choice to just get yourself aware about how much time your site took to load.

YSlow by Yahoo!

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 – A web development tool.

Page Speed – Open Source Firefox / Firebug Add-on

Page Speed is an open source Firefox / Firebug Add-on. Webmasters and web developers can use Page Speed to evaluate the performance of their web pages and to get suggestions on how to improve them.

Pagetest – Open Source Web Performance Testing Tool for Internet Explorer by AOL

Pagetest is an open source tool for measuring and analyzing web page performance right from your web browser. This is a powerful tool for web developers and software engineers in testing their web pages and getting instant feedback.

Website & Server Speed Checker Tool from Vertain Software

Free instant website & server speed test. Track speed variations with our automated speed tests. Evaluate your site’s performance against your competition.

Webwait

WebWait is a website timer. You can benchmark your website or test the speed of your web connection. Timing is accurate because WebWait pulls down the entire website into your browser, so it takes into account Ajax/Javascript processing and image loading which other tools ignore.