Website performance optimization is always something that should be put on top priority when managing an online business website.  It plays a crucial role in bringing the great experience to customers.  In this article, we provide you with list of best free website performance and optimization test tools 2017 to help make your site a truly efficient sale channel. Let’s check out!

1.W3C Markup Validation

Markup Validator is a totally free tool that helps you check errors in HTML of your site. Almost all websites are written by HTML or XHTML. This useful tool can check the structure of the site and help the webmasters figure out the current problem.

2. W3C Link Checker

This poweful tool can list out link related issues on your page. It checks all the links on website and informs you the situation so that you can resolve problems as soon as possible.

Free Performance optimization test tools

3. W3C Feed Validation Service

This is W3C Validation Service data sourse, a free service to check the syntax of Atom or RSS feeds.

4. W3C mobileOK Checker

The main role of this tool is to display your site on various devices to assess the responsiveness of the page with mobile devices. For more details about the criterion of testing, click here.

5. YSlow

YSlow analyzes web pages and why they’re slow based on Yahoo!’s rules for high performance web sites. It summarizes the page’s components, displays statistics about the page and even provides tools for performance analysis, including™ and JSLint.

Free Performance optimization test tools

6. Dr. Watson

Dr. Watson is a free service to analyze your web page on the Internet. You give it the URL of your page and Watson will get a copy of it directly from the web server. Watson can also check out many other aspects of your site, including link validity, download speed, search engine compatibility, and link popularity.

7. Pingdom website Speed Test

This tool help you to analize the speed of your web site and show you how to make it faster. By providing information about files size, downloading time, and other details on many components of the site, this tool quickly help find out what caused your page slower and slower.

8. Browsera

Browsera will check Javascript errors on your site while display on different browsers.  Although it is an advanced service with fee, the tool can also be free for 25 URL/user.

9. Shots Browser

Browsershots provides screenshots of your website on different browsers and devices. It is a free online tool to check the compatibility of website on browsers.

Free Performance optimization test tools

10. Web Page Analyser

This is a website speed test to improve the productivity of the site. When you enter the URL of the site and send it, the tool will calculate page size, components and download time…It also gives suggestions to help you optimize your own site.

11. Site Speed Checker

This tool analyses how long it takes to send get a control packet from the remote host. Site Speed Checker supports 10 URLs at the same time and can be a perfect choice especially when you need to check numerous websites.

12. Web Developer

This is an extension for browser Firefox from Mosilla that includes many free tools to test your website. You can check website speed, how long it takes to load and diffent errors on the site.

13. Link Sleuth

Xenu’s Link Sleuth is an useful tool to check Web sites for broken links. Link verification is done on “normal” links, images, frames, plug-ins, backgrounds, local image maps, style sheets, scripts and java applets. It displays a continously updated list of URLs which you can sort by different criteria. A report can be produced at any time.


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