Listing and product templates
Image strategy, query cost, variant UX and the JavaScript that blocks interaction on PDPs.
Store speed
Ecommerce performance optimization for pages that have to convert
Category, product and checkout templates are where Magento and Shopify stores get heavy. We work on TTFB, render path, app scripts and Core Web Vitals because they change both conversion and crawl efficiency — not because a score looks tidy.
Fit
Problems this work is meant to solve
- 01
Speed plugins on a heavy theme
Minify-and-hope tools do not fix N+1 listing queries, uncached ESI holes, or three review widgets on a product page. We start with what the template is actually doing.
- 02
Lab scores that ignore checkout
A fast homepage with a 12-second checkout is not a fast store. We measure the templates revenue depends on.
What the engagement covers
01 02 Checkout weight
Payment widgets, tag managers and theme scripts that make the last step feel unsafe.
03 Third-party budget
Apps, pixels and chat tools ranked by value versus milliseconds.
04 Caching and TTFB
Magento FPC/Varnish/Redis and Shopify’s constraints treated as architecture, not folklore.
Section 01
Core Web Vitals on a store, not a brochure
LCP on a product page is usually the primary image. INP suffers when variant pickers and apps compete. CLS appears when promotional banners and late fonts shove the buy box. Field data from Search Console and CrUX matters more than a single Lighthouse run on a cached homepage.
Section 02
Magento and Shopify fail in different ways
- Magento: uncached category pages, heavy XML layouts, indexer lag, synchronous third-party calls in checkout
- Shopify: app script soup, oversized theme sections, unoptimized media, and filter apps that explode HTML
- Both: tag managers loaded as if they were free
The Magento-specific version of this work is also described in our notes on practical Magento 2 performance. Sitewide, non-store performance (marketing sites, Next.js apps) lives on the performance optimization service.
Common questions
Questions we are actually asked
Why is website performance important for SEO?
Slow pages waste crawl budget, increase bounce on mobile, and fail Core Web Vitals thresholds that Google uses as quality signals. On ecommerce sites, performance also changes conversion: shoppers abandon heavy category and checkout templates. Speed work is both an SEO and a revenue task.
What are Core Web Vitals in practical terms?
Largest Contentful Paint, Interaction to Next Paint and Cumulative Layout Shift describe whether the main content appears promptly, whether the page responds quickly, and whether the layout jumps while loading. On stores, LCP is often a product image or hero; INP suffers from heavy JavaScript; CLS comes from late-loading banners and fonts.
Can you improve an existing Magento website?
Yes. A large share of Magento work is not a rebuild. We audit modules, theme overrides, checkout customizations, indexers and third-party extensions, then decide what to patch, replace or isolate. Upgrades, performance work and SEO repairs are often more valuable than starting over.
When should we not rebuild the website?
If the platform still fits, the catalog is sound and the problems are concentrated in theme weight, a few modules or content structure, a targeted fix is cheaper than a rebuild. Rebuilds are justified when the architecture cannot meet SEO, performance or operating requirements even after cleanup.
Related services
Magento
Magento 2 development, customization, upgrades, checkout, extensions and performance for complex catalogs.
Shopify
Shopify store development, theme customization, integrations, migrations and optimization for Shopify and Shopify Plus.
Performance Optimization
Render path, assets, caching, third-party tags and Core Web Vitals for business websites and marketing stacks.
Technical SEO
Crawlability, indexation, canonicals, structured data, site architecture, JavaScript SEO, sitemaps, robots and Core Web Vitals.
Ecommerce SEO
Category architecture, product indexation, faceted navigation, duplicate content and internal linking for Magento and Shopify.
Ecommerce Maintenance
Patches, platform updates, extension conflicts, catalog changes and production support for Magento and Shopify stores.
Next step
Need ecommerce performance on a live site or a new build?
Share the current URL, platform and the problem you can already see. We will say if this service is the right next step.