What does the Shopify store grader check?

The grader audits six categories from your homepage HTML: performance (server response time, HTML size, script count), SEO (title, description, canonical, H1, robots, image alt coverage), mobile responsiveness, structured data (JSON-LD, Open Graph, Twitter card), app bloat (number of third-party script domains), and security (HTTPS).

How does the grader detect app bloat?

The tool counts every unique third-party domain loading a tag on your homepage — excluding Shopify's own CDN and your own domain. Each unique domain typically represents a different app or tracker. More than 8–12 domains usually indicates significant bloat adding 1–3 seconds of load time.

Yes. The Shopify Store Speed & Health Grader is 100% free with no signup, email, or account required. We do not store your URL or the audit report. The URL is sent to Google PageSpeed Insights to run the Lighthouse test, and we keep a short lived request count per visitor to prevent abuse.

Does the grader work for non-Shopify sites?

Yes — the audit works on any public website. However, the app-bloat detection and several Shopify-specific heuristics are tuned for Shopify stores, so results are most actionable on Shopify sites.

Why is my server response time slow?

Common culprits on Shopify stores are heavy theme Liquid loops, un-cached app blocks in the header, excessive metafield lookups, or expensive third-party app endpoints. A Shopify performance agency can typically cut TTFB by 40–70% through theme audits and app consolidation.

Free Tool

Shopify Store Speed & Health Grader

Enter any Shopify store URL and get a real Google Lighthouse audit plus an A–F grade covering speed, mobile, SEO, structured data, and app bloat — with a prioritised fix list. No signup.

Real Lighthouse scoresCore Web Vitals (LCP / CLS / TBT)No signup required

What the audit checks

Performance

Server response time (TTFB)
HTML document size
Script count

SEO

Meta title & description length
Canonical URL
H1 heading structure
Robots directive (indexable?)
Image alt-text coverage

Mobile

Responsive viewport meta tag

Apps & bloat

Unique third-party script domains
Duplicate trackers (manual review)

Structured data

JSON-LD schema blocks
Open Graph tags
Twitter card
Favicon declaration

Security

HTTPS enforcement

Found issues? Get an expert to fix them.

Our matching service connects you with Shopify performance, SEO and CRO specialists — all vetted, all free to contact.

Get Matched — Free Browse Performance Agencies