PageSpeed Guru

PageSpeed Guru

by Prozapia Ltd

Speed up your shop, increase sales and lower your adcost

3.6 of 5 stars(172 reviews)

Increase your sales

A second gained in pagespeed, will gain you a two percent increase in conversion and boost your sales.

Improve search engine ranking

Pagespeed is the most important part of the customer experience, The faster your page the higher the ranking in the search results.

Lower your Adexpense

Pagespeed is used to calculate your ads quality score and set a price for your ads. The slower your pagespeed the higher the adcost.

About PageSpeed Guru

Speed up your shop and increase sales

PageSpeed Guru boosts the performance of your shop for mobile and desktop devices. Boosting your shops performance will.

  1. Increase your sales
  2. Improve your search engine rankings
  3. Lower your ad cost and boost your ads quality score.

If you're on the fence on trying this out, don't be - make a backup of your theme and give it a try, you'll be glad you did!

How is it done

PageSpeed Guru speeds up your shop by removing renderblocking caused by stylesheets and javascript.

Since each lookup of an external ressource like a stylesheet or a javascript can take anywhere from 0.1 second to several seconds. Removing renderblocking will always speed up your shop.

  1. PageSpeed Guru inlines your CSS.
  2. Depending on your shop, the theme, your apps and how your shop is set up. PageSpeed Guru tries to: a. Load your scripts with ASYNC / b. If that doesn't work (re: happens when scripts have interdependencies) it tries to load you scripts with DEFER. / c. If a and b doesn't work it inlines javascript (re: this always works) but is uggly.

** If you have 10 stylesheets and 10 javascripts you have a minimum gain of 20x0.1 ~ 2 seconds. and so on.**

No technical skill needed

Just 1 CLICK to run


We test and maintain our apps. Still, if you find a glitch or bug, just send a support request and we will fix it as soon as possible. At PageSpeed Guru we strive to deliver the best possible support. We will respond back to your support request within 48 hours. Every issue and problem will be addressed with the highest priority.

Media gallery


  • Developer website
  • Privacy policy not provided
  • +45 31618527


Free Plan


  • $0/ Forever

  • > Speed up your Home Page

  • > Speed up your Home Page as often as necessary

  • > Weekly Status Email

  • > Standard Tech Support

Professional Plan


  • > Speed up all pages as often as needed.

  • > Set & Forget: Weekly Automatic Speed Up

  • > Weekly Status Email

  • > Priority Tech Support

Business Plan


  • > Speed up all pages as often as needed.

  • > Set & Forget: Daily Automatic Speed Up

  • > Weekly Status Email

  • > Priority Tech Support

* All charges are billed in USD. Recurring charges, including monthly or usage-based charges, are billed every 30 days.

Overall rating
3.6 of 5 stars
Based on 172 reviews

  • 5 of 5 stars
    59% of ratings are 5 stars
  • 4 of 5 stars
    6% of ratings are 4 stars
  • 3 of 5 stars
    2% of ratings are 3 stars
  • 2 of 5 stars
    3% of ratings are 2 stars
  • 1 of 5 stars
    31% of ratings are 1 stars

Most recent reviews

flying Gadgets

Bad app adds a banner to your code and you can't remove it even when you uninstall this stupid app that doesn't even works


Will obfuscate your theme. This is somewhat to be expected, so you MUST backup/download your theme before trying this, and you should really do that before you install any app.

What is not acceptable is leaving the banner on the site. To remove this:

Go to: Layout -> themeX.liquid

Remove this added section of code right near the bottom of this file above </body></html> tags and save it:

<script type="text/javascript"> var elemDiv = document.createElement('div'); elemDiv.innerHTML = '<a href="https:\/\/\/"><img style="position: fixed; bottom: 0; right: 0; border: 0;" src="https:\/\/\/img\/powered_by_PageSpeed_GURU_bottom_right.png" alt="Powered By PageSpeed Guru" title="Powered By PageSpeed Guru"><\/a>'; document.body.appendChild(elemDiv); </script>

Cool in Wool

Shouldn't be allowed. Dirty code stays after uninstallation. Please, read review before install this crap