Google new Tool Helps Test your Website Speed
Image Source: testmysite.thinkwithgoogle.com

 Many of us are facing problem of high bounce rate on your website. User is not sticking on your site. I am sure you all are aware about Responsive website. If you don't know about Responsive web design please refer below few lines below from Wikipedia
Image Source: Google search results
Now think about your business website, Is your website performing well on Desktop and mobile devices? And your question, how to check my website performance on all devices?

 Don't worry Google launched a free tool "Thinkwithgoogle" to check your website performance on all devices. Now you can test your live website performance for

 Mobile Friendliness
Mobile Speed
Desktop Speed

 Simply put your website URL in testmysite.thinkwithgoogle.com, and this tool shows your website performance for all devices.
Image Source: smallbusiness.googleblog.com

 You can rectify your website errors according to that report, If you don't know how to fix those errors you can hire any experience web developer or agency.

 Website Performance Free Report

 So what did you find in said reports? Here are few points that i got while testing few websites on the basis of "Passed", "Consider Fixing", "Should Fix" in Green, Orange and Red simultaneously.

 Mobile Friendliness Check
  • Size tap targets appropriately
  • Avoid app install interstitials that hide content
  • Avoid plugins
  • Configure the viewport
  • Size content to viewport
  • Use legible font sizes

 Mobile Speed Check
  • Eliminate render-blocking JavaScript and CSS in above-the-fold content
  • Leverage browser caching
  • Minify HTML
  • Avoid landing page redirects
  • Enable compression
  • Reduce server response time
  • Minify CSS
  • Minify JavaScript
  • Optimize images
  • Prioritize visible content

 Desktop Speed Check
  • Leverage browser caching
  • Eliminate render-blocking JavaScript and CSS in above-the-fold content
  • Optimize images
  • Minify CSS
  • Avoid landing page redirects
  • Enable compression
  • Reduce server response time
  • Minify HTML
  • Minify JavaScript
  • Prioritize visible content
Image Source: testmysite.thinkwithgoogle.com

 Test Your Mobile Website Friendliness

 If you want to test your website speed for Mobile & desktop devices, You can use Googl's another free tool Page speed insights by Google Developers

 This tool shows errors in your website with detailed description, so that you could fix these errors by your own.