We’ve optimized over 1,500 Shopify sites, built the first Shopify performance analysis tool, built apps in the Shopify app store, and are experts in Shopify development.

Run your site through the Shopify Analyzer and choose the services below to solve your optimization issues, or contact us if you need help or would like a free analysis.


  • Lazy loading
  • Minify CSS and JS
  • Image optimization
  • App check
  • Report
  • Guaranteed Lighter / Faster Site


  • Everything in Essentials
  • Preloading
  • App optimization
  • Server & error analysis
  • Deep dive
  • Report
  • Guaranteed Lighter / Faster Site


  • Everything in Entrepreneur and Google PSI Optimization
  • Core Web Vitals Assessment
  • Diagnose Performance Issues
  • Report
  • Guaranteed Lighter / Faster Site & Score


  • Everything in Entrepreneur+ and Conversion Analysis
  • UX Audit
  • Cross browser / mobile testing
  • Foundation SEO
  • DNS Upgrade
  • Report
  • Guaranteed Lighter / Faster Site

We use the Shopify Analyzer and WebPageTest.org to measure performance issues and load speed. Scores on general tools like Google PSI or the Shopify speed score can increase but we can’t make guarantees (unless you order the Google PSI Optimization) because those tools are not geared for eCommerce and are not based on actual speed. Read this post to learn about load speed for Shopify.


If you prefer individual services, mark them and click checkout.


Increase profits by increasing your conversion rate.

With our Conversion Analysis we test your site against 80+ check points on mobile / desktop, browser compatibility, and SEO. To see the workflow and sample, check the Conversion Analysis section in our CRO guide.

A single discovery or idea generated in our Conversion Analysis report can easily pay for itself many times over into the future.


  • UX Audit
  • Cross browser / mobile testing
  • Foundation SEO analysis
  • Report


PageSpeed Insights (PSI) reports on the performance of a page on both mobile and desktop devices, and provides suggestions on how that page may be improved. PSI uses Lighthouse to analyze the given URL, generating a performance score that estimates the page’s performance on different metrics, including: First Contentful Paint, Largest Contentful Paint, Speed Index, Cumulative Layout Shift, Time to Interactive, and Total Blocking Time.

With our Google PSI Optimization Service we guarantee to increase your Desktop Score to 90+, and Mobile Score to 65+.


  • Core Web Vitals Assessment
  • Diagnose Performance issues
  • Guaranteed Performance Score
  • Report


Web Vitals is an initiative by Google to provide unified guidance for quality signals that are essential to delivering a great user experience on the web. Site owners should not have to be performance experts to understand the quality of experience they are delivering to their users. The Web Vitals initiative aims to simplify the landscape, and help sites focus on the metrics that matter most, the Core Web Vitals.


  • PSI Optimization
  • Pre-Loading
  • DNS Upgrade
  • Static Asset Optimization
  • Comprehensive Audit
  • Error Fixing
  • Report


  • Everything in Core
  • Inline Critical CSS
  • LCP Performance Tuning
  • FCP Performance Tuning
  • FID Performance Tuning
  • See Addons
  • Report


  • Everything in Plus
  • Async Load on Scroll
  • Mobile Redesign
  • Includes 1 page
  • Covers Desktop & Mobile
  • See Addons
  • Report


ESSENTIALS: Includes the core components of performance optimization on Shopify. This is good for sites without a lot of customizations or apps.

ENTREPRENEUR: This is our full optimization package. Ideal for sites that score a 0/100 on the Shopify Analyzer, have a theme 1+ years old with customizations, or have installed / uninstalled a lot of apps.

ENTREPRENEUR PLUS: Performance optimization + Google PSI Optimization.

BOOSTR: Performance optimization + Google PSI Optimization + conversion optimization analysis + foundational SEO analysis + cross-platform testing.

CONVERSION ANALYSIS: If your performance optimization is looking good but you’d like to improve conversion rates, the Conversion Analysis can help point out issues and recommendations to help your site convert better.

GOOGLE PSI OPTIMIZATION: Our team will focus on overall site speed optimization for both desktop and mobile, help increase your Shopify score, and address issues concerning Core Web Vitals.

CUSTOM: If you need a custom project, app, feature, or solution, contact us for a quote.


We optimize Shopify sites every day. We do our best to optimize yours as much as possible.

Most of the optimizations apply to most of your site.

There are limits to what we can optimize (we can’t control 3rd party apps, server configurations, design choices).

We include a report and before / after stats with our optimization packages (Essentials, Entrepreneur, Entrepreneur Plus).

In most cases we can make your site lighter and faster (measured using WebPageTest.org).

We can’t guarantee score changes with general analysis tools like Google PageSpeed Insights or the Shopify speed score (they both use the same engine). The scoring on these tools isn’t geared well for ecommerce sites that use engaging features and 3rd party apps. Most successful stores we see score in the range of 20 – 35 with the Shopify speed score. See Understanding Load Speed + Analysis Tools and Scoring on Shopify for more info.

Yes, we take pride in doing quality work and giving excellent service. You can find reviews here: speedboostr.com/reviews.

You can also check more reviews in our Shopify app store page: Apps by Speed Boostr.

A lot of customers we work with end up being regular clients that come to us when they need any development work. We aim to build long lasting relationships to help you achieve your business goals.

We perform the services you order to the best of our ability. In most cases we can make your site lighter and faster.

If you order the Essentials or Entrepreneur package, we guarantee a lighter and faster site or we’ll refund you. We use WebPagetest.org to measure before / after performance stats.

It’s impossible to predict the gains of a project, it depends how optimized your site was before and what apps you’re using. We can’t guarantee specific speeds or scores with 3rd party tools because they’re usually general analysis tools not geared for Shopify / eCommerce sites.

We offer free support for your project for 7 days after the project has been delivered.

*If you order a service and it cannot be performed (either because your site is already optimized or there’s an app blocking it), then we give you a full refund.

*If you order a service and the developer performs the service according to the description, we cannot refund because the work has already been done. If you’re concerned about the results or have target goals for speed, we recommend ordering a Developer Analysis service first, so a developer can investigate and give a prediction on what can be done / the effects.

For more information see our Refund Policy.

It depends what tool you’re using.

If you’re using the Shopify Analyzer, then usually a higher score results in a faster website because the optimization warnings are based on factors that contribute to actual load speed.

If you’re using Google PageSpeed Insights or the Shopify speed score (both are based off the same engine so have similar scoring), then the score is based more on emulation than real load speed. Some key optimizations like lazy loading or image optimization may raise the score while also improving load speed, but sometimes raising the score in an emulation based tool can decrease actual performance. To see how load speed compares to score with these tools, see Case study: Does Raising PSI Score Improve Page Speed?

To measure actual load speed, use WebPageTest.org. We recommend focusing on optimizing what’s important for Shopify sites first (see our services listed above for ideas), then if you want to dive into warnings in particular tools, we can start an analysis project to see if anything can be done to further improve performance + advise on solutions.

It might change a little but we can’t guarantee any score changes because it’s largely based on the apps you use.

The Shopify speed tool uses the same engine as Google PageSpeed Insights. It’s a general analysis tool that’s not geared well for ecommerce sites. Most engaging ecommerce sites score low on these tools.

For more info + case studies see Shopify Speed Tool Analysis.

This is a good general tool to get ideas for performance optimization but it’s not good for eCommerce sites like Shopify.

Your score may increase, but the PSI scoring system doesn’t correlate to actual speed so we can’t guarantee a score increase. Most sites with 3rd party apps score low, but since the score is not equal to actual speed we recommend optimizing your site but also keep your revenue generating apps.

To learn more and get other expert opinions, check this post: The Truth About Google PageSpeed Insights for Shopify.

This depends on a few factors:

  • What tool you’re using to gauge the speed
  • What the connection speed is of the tool / user
  • How many 3rd party apps you’re using
  • How optimized your site is (we handle this part)

A good goal to aim for is under 4 seconds with WebPagetest at LTE connection speed setting. This translates to less than 2 seconds on a faster connection speed.

For performance benchmarks check this one: Shopify Performance Benchmarks.

Our standard process on optimization projects:

  1. You’ll be assigned a developer to take the lead on your project
  2. We back up your live theme and work on this new theme
  3. The developer will communicate with you and report the results after finishing your project

Yes. We use Stripe for payment processing. It’s the same company that handles Shopify Payments.

When you place an order your data gets encrypted and securely sent to process by Stripe. We cannot store or access your credit card information.

We’re a team of professional developers that love to code and take pride in doing quality work.

When we work on your site, we backup your live theme and work on the duplicate theme to prevent changes to your live site.

Thanks for asking! We build Shopify apps (all rated awesomely, check em out in the app store) and custom private Shopify apps specifically for your store.

We’ve also done theme builds, migrations from other platforms, and custom theme features. The benefit of working with us is our optimization background ensures you get clean code and efficient components. Contact us with your idea and we’ll get a quote going.

If you have any questions we’re here to help.