Performance analysis

Run a detailed Shopify performance audit in under a minute

Shopscan benchmarks Core Web Vitals, script weight, and theme bloat so you know exactly what is slowing your storefront down—no theme access needed.

We combine Lighthouse data with a proprietary scoring system to surface the issues that affect load time, responsiveness, and buyer experience.
Run a free performance scanSee sample insights
Shopify stores audited
500+
Pages analysed
2.5M+
Average score lift
+47 pts
Metrics we analyse

Every performance signal that matters to shoppers

Each item is scored on a 100-point scale with clear recommendations so your team knows how to improve.

Largest Contentful Paint (LCP)

Understand how quickly your most important content appears for visitors.

Cumulative Layout Shift (CLS)

Spot unexpected layout jumps that hurt UX and reduce conversion.

First Contentful Paint (FCP)

See exactly when shoppers get visual feedback the page is loading.

Time to First Byte (TTFB)

Measure server responsiveness so you can fix infrastructure bottlenecks.

Total page weight

Track the combined impact of images, scripts, and stylesheets on speed.

JavaScript bundle size & script count

Reveal app bloat and unused code that delay interactivity.

DOM load & blocking time

Diagnose main-thread blocking tasks so pages stay responsive.

Image optimisation & transfer size

Catch oversized media and missing CDN compression before they impact conversions.

Prioritized fixes

Know exactly where to start

Every finding is automatically grouped into High, Medium, and Low impact so you can focus on the changes that move revenue.

  • Render-blocking JavaScript

    Identify problematic apps and snippets with clear instructions for deferring, lazy loading, or removing them.

  • Oversized images & media

    Get compression targets, preferred formats, and CDN guidance tailored to each heavy asset.

  • Theme & Liquid bottlenecks

    Locate unoptimised Liquid logic and DOM-heavy sections that cause long blocking times.

Each recommendation explains the “why” alongside the exact fix so you can brief developers in minutes.

Why performance matters

Faster stores create happier customers

Higher engagement

Keep shoppers exploring longer with pages that load instantly and stay stable.

Stronger SEO rankings

Core Web Vitals and lightweight themes send positive signals to Google.

Better checkout completion

Reduce abandonment at payment steps by eliminating slowdowns and layout shifts.

Know exactly what is slowing your store down

Launch a free performance scan and get a prioritized roadmap with clear next steps for your developers.

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