< Shopify Optimization />
Entrust your Shopify store to webperf experts
Do you want to take full advantage of one of the most advanced SaaS e-commerce solutions and perform better on Google and with your users?
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Don't let a poorly designed Shopify theme permanently impact your conversion rates!
< Our web performance experts optimize your Shopify store to meet the highest standards />
Send a strong signal to Google and your visitors: focus on Core Web Vitals
A high-performing store guarantees a smooth browsing experience for your visitors, thus maximizing your chances of converting them into buyers. Statistics are eloquent: internet users quickly abandon a page that takes too long to load. If your site doesn't meet their expectations, they will turn to the competition. By entrusting us with the technical optimization of your Shopify store, you eliminate the technical bottlenecks that slow down your page rendering.
Collection and product pages that load instantly are also a decisive advantage for your positioning in Google search results. Initial response times, measured by the TTFB metric, directly influence how the indexing robots will utilize the crawl budget allocated to you. The more responsive your Shopify infrastructure, the better your catalog will be indexed... and therefore your visibility in the SERPs.
A service in 4 key steps
Our Shopify optimizations are broken down into several key stages.
Technical Alignment
01To get the most out of our intervention, we need to understand in detail the architecture and specificities of your Shopify installation. This first videoconference session allows us to grasp your store's history, your theme customizations, integrated third-party applications, identified speed issues, and your web performance ambitions.
Tracking Implementation
02We place a tag on your site that collects performance data from your real users. This "RUM" data is used to precisely identify bottlenecks. Thanks to this data-driven approach, we operate with maximum visibility on your issues.
We deploy Lighthouse monitors on your key pages to provide you with a synthetic view of performance evolution. Launched every 8 hours, they allow us to put numbers on mobile and desktop gains. Practical for those who track Core Web Vitals metrics in a tool like PageSpeed Insights.
Shopify Optimization
03Following an exhaustive technical analysis of your Shopify store, we apply performance corrections directly in your duplicated theme in preview. This intervention phase, carried out over 3 days, constitutes the core of our service: we optimize Liquid code, CSS, JavaScript, webfonts, images, and third-party application integrations to sustainably improve Core Web Vitals.
Intervention Report
04We organize a videoconference presentation session to show you the results of our intervention. The summary document is presented to you with, for each deployed optimization, precise technical explanations and an overview of the measured impacts on performance indicators (LCP, CLS, or INP). This privileged exchange allows us to answer your questions and transmit best practices that will ensure the long-term performance of your Shopify store.
They entrusted us with their Shopify optimization
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Consult the FAQ for details about the service.
Should we prioritize optimization or an audit?
Our web performance experts have the necessary technical skills to intervene directly on the most customized Shopify themes, safely. This approach proves particularly relevant if you do not have experienced in-house front-end teams.
If you already have internal technical resources or a Shopify partner who knows your project, an audit is an interesting alternative to turnkey optimization: rather than implementing the fixes ourselves, we provide your teams with a detailed operational action plan. We can also provide post-deployment support through technical acceptance testing, included in the audit service.
How much does Shopify site optimization cost?
A Shopify optimization costs between €2,500 and €3,500 before tax, depending on the theme in place, the number of apps installed, and the size of the catalog. This service is structured as a package including the initial technical alignment session, the technical intervention phase (3 full days), and the production and video conference presentation of a detailed and illustrated report.
To obtain a price proposal, please contact our account manager Marylise by email or phone. She will quickly send you a personalized quote corresponding to your specific needs.
What can (and cannot) be optimized on Shopify?
Shopify hosts your store itself: the server infrastructure and CDN are managed by the platform and offer excellent response times (TTFB), with no room for maneuver on our end.
The bulk of the optimization potential therefore lies on the front-end: Liquid code, JavaScript, CSS, and third-party apps, which are often responsible for the majority of page weight. This is precisely where your Core Web Vitals are determined.
What remains out of reach deserves to be named directly, as no provider can bypass it. TTFB, server configuration, and CDN belong to Shopify: no server cache to adjust, no PHP version to choose, no database to optimize. The checkout.liquid file can no longer be modified, and the checkout process therefore escapes any intervention outside of the Plus plan.
In addition, there are three structural constraints. Scripts injected by the platform cannot be deferred; third-party apps load their resources on all pages, even where they are not needed; and images are transmitted via Shopify's CDN, whose compression settings can only be adjusted through the options exposed by the platform.
What remains actionable, however, is substantial, and sufficient in almost all cases. On Online Store 2.0 themes, the section and block architecture allows code to be loaded as close as possible to its use: JavaScript and CSS are split by section rather than being served in a single bundle across the entire store.
The first task always remains the same: the app inventory. A store that accumulates about ten apps often serves several hundred kilobytes of third-party JavaScript on each page. Uninstalling an app is not enough: its tags often remain in the theme and continue to load resources after cancellation.
Then come the classic levers, which apply fully: prioritization of the first screen image, reserved dimensions against layout shifts, deferred loading of lower sections, woff2 fonts with a limited number of weights, and lightening of Liquid in product loops. These actions are sufficient to pass the Core Web Vitals on the vast majority of stores.
Why is a Shopify store slow?
On Shopify, slowness never comes from the server: the infrastructure is managed by the platform and the TTFB is generally excellent. The causes are almost always in the theme and apps: accumulated third-party JavaScript, duplicated libraries, unscaled images, and too many fonts.
Apps are the first suspect. Each one installs its own scripts, often loaded across the entire store when they are only needed on one page: customer reviews, chat, collection pop-ups, loyalty programs, recommendations. Ten apps are enough to double a page's weight, without any single one appearing guilty.
The theme comes next. Commercial themes include features the store doesn't use, yet they are loaded anyway: sliders, hover effects, galleries, advanced filters. Unused code is paid for on every page view, and it can only be removed by intervening in the Liquid code, not from the admin interface.
Do we need to leave Shopify to have a fast site?
No. Shopify is not an obstacle to good Core Web Vitals: its infrastructure serves TTFBs that many self-hosted stores never achieve. The constraint lies in the front-end, not the platform, and this is precisely the part where intervention is still possible.
The real trade-off lies elsewhere. Shopify exchanges a degree of technical control for managed infrastructure and zero maintenance: you don't manage the server cache or the database, but you have no server to administer or updates to monitor. For the majority of merchants, the exchange is favorable.
A migration is only justified for needs that the platform does not cover: deep customization of the checkout tunnel outside the Plus plan, very specific business logic, or exceptional catalog size. Performance alone never justifies a platform change, because gains can be achieved without leaving.
