Shopify Speed Optimization

Shopify speed optimization shortens the time until your customers can see and use a page. Shopify runs hosting and delivery, and you cannot tune them. Load time is therefore decided in three places you control: the code of the theme, apps and third-party scripts, and images and fonts. We own the measurement, the search for causes and the changes in the theme.

NICCOS has been a Shopify Plus Partner since April 2022 and is an OpenAI partner. The Shopify Partner Directory lists 19 reviews with a rating of 5.0. Our projects are documented in 13 published case studies.

Speed optimization on Shopify Plus works in four steps. We evaluate field data per template and device, assign a cause to every poor value in the lab, remove apps and scripts without use, and make the changes in a copy of the theme. After each change we measure again, so every effect is proven on its own.

Two things are specific to Plus. No freely embedded JavaScript runs in the checkout any more, and tracking works inside the pixel environment there. The speed work therefore sits on home page, collection, product page and cart. Plus merchants also often run several stores or markets. When they share one codebase, a fix in the theme reaches every market.

Our page on the Shopify Plus agency explains what the plan means for your business.

A store that enters a new country usually gains more than a translation. It gains a currency switcher, a redirect by location, local payment badges, a review widget in the local language and a consent banner. When each of these comes from a separate app, every market adds scripts to every page.

Shopify Markets covers currency, language and domains inside the platform. The operator of the official CR7 online stores had no shop system of its own before the project. We built mycr7.eu and mycr7.ch on Shopify Plus with Shopify Markets and a custom theme that was developed with a focus on brand impact and fast load times. According to the MYCR7 case study, both markets went live together after 6 weeks.

For Gusti Leder we set up Shopify Markets for DACH, France, the UK and further European markets and developed a custom theme with a focus on load time, UX and brand impact. The details are in the Gusti Leder case study. Neither case study publishes Core Web Vitals, so we state no load time in seconds as a result here. Our page on Shopify internationalization covers the market setup.

Scripts that load on every page and are needed on few slow a store down most. Reviews, chat, pop-ups, recommendations and leftovers of uninstalled apps belong to this group. We keep an inventory with load position and weight per script and decide for each one: remove it, defer it, or limit it to the templates that need it.

SMILODOX wanted to bring B2C and B2B onto one foundation. The project started with an app audit in which we rated every app by use, overlap and technical relevance. The theme was chosen by flexibility, maintenance, performance and fit with the planned modules, and a separate step for quality and page speed came before launch. According to the SMILODOX case study, the store went live two months after kick-off with a cleaned-up app stack.

When several apps together do a job that one function in the theme or one custom app would cover, we check the replacement. That is part of our Shopify app development.

In the EU, marketing scripts may only start after the visitor has agreed. The consent layer therefore loads on the first page view, before anything else happens. When it arrives late, it shifts the layout and delays the first interaction. We reserve its space and load it early.

Every marketing channel brings its own script. Server-side tracking moves part of that work from the browser to the server. Our pages on tracking setups and on Shopify consent and privacy describe both parts.

Google uses Core Web Vitals as one of many signals when it rates a page. Good values replace neither content nor structure, and poor values can hold back a page that fits the search. The technical basis is described on our page about Shopify SEO.

Stability under load matters as much as load time. BlumeIdeal ran on Shopware 5 with years of custom changes, plugins and workarounds, and the store became unstable on Valentine's Day and Mother's Day. Since the move to Shopify Plus, Shopify carries the peaks. The BlumeIdeal case study reports a DNS switch of about 5 minutes with no lost orders and a 33% higher conversion rate compared with Shopware. How much a faster page brings in your store is shown by a comparison before and after the work. When your values are already good, offer and page layout decide the sale, and Shopify CRO is the next step.