Performance

· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop

Performance

Accessibility

Best Practices

SEO

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.16 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.55 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

6 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.085

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

3.35 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

2.28 s

Page Load Progression

938 ms

1.9 s

2.8 s

3.8 s

4.7 s

5.6 s

6.6 s

7.5 s

Checks

12 PASS 3 REVIEW 5 FIX

Page Weight Budget

Action

3.6 MB transferred, 426 requests

FIX

3.6 MB transferred, 426 requests

Page weighs 6.1 MB (3.6 MB transferred)

Images are 1.6 MB — compress or use modern formats

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Got: 1.6 MB

JavaScript is 619 KB — consider code splitting or lazy loading

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Got: 619 KB

426 HTTP requests — consider bundling or reducing

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Estimated 0.76 g CO2 per page load

3.6 MB transferred

426 requests

0.76 g CO2 per page load

Images 1.6 MiB 45%

Other 842.5 KiB 23%

JavaScript 618.5 KiB 17%

HTML 275.5 KiB 7%

Fonts 140.9 KiB 4%

Other 56.7 KiB 2%

Other 47.3 KiB 1%

CSS 37.1 KiB 1%

Other 12.2 KiB 0%

Other 0 B 0%

0 2.4 MB 4.9 MB

Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

Third-Party Impact

Action

100% third-party, 0 ms blocking

FIX

100% third-party, 0 ms blocking

Third-party code accounts for 100% of page weight (3.6 MiB of 3.6 MiB)

Third-party blocking time is low (0 ms)

100%

First-party Third-party

JS Execution Cost

Action

5085ms total JS execution

FIX

5085ms total JS execution

https://www.mossandmolt.com/: 4219ms CPU time

Unattributable: 344ms CPU time

https://cdn.shopify.com/extensions/01a18772-60a5-7...: 207ms CPU time

https://www.mossandmolt.com/cdn/wpm/b264bf420w2e16...: 188ms CPU time

https://cdn.shopify.com/storefront/web-components/...: 67ms CPU time

Third-party scripts: 4741ms (93% of total)

Main Thread Breakdown

Style & Layout 64% Other 16% Script Evaluation 14% Rendering 4%

Script	Total	Scripting	Parse/Compile	Party
https://www.mossandmolt.com/	4219ms	243ms	31ms	3rd
Unattributable	344ms	25ms	0ms	1st
https://cdn.shopify.com/extensions/01a18772-60a5-7b82-aea9-8a2cbce28b0f/judgeme-834/assets/loader.js	207ms	94ms	0ms	3rd
https://www.mossandmolt.com/cdn/wpm/b264bf420w2e1681cap8d55857fm7d879f9cm.js	188ms	104ms	6ms	3rd
https://cdn.shopify.com/storefront/web-components/account.js	67ms	12ms	0ms	3rd
https://cdn.shopify.com/shopifycloud/shop-js/modules/v2/chunk.register_C2Sc-DlE.esm.js	60ms	31ms	0ms	3rd

Page Weight Inventory

Action

426 resources · 3.6 MB · 40 KB savings available

FIX

426 resources · 3.6 MB · 40 KB savings available

Page weight 3.6 MB exceeds 1 MB target by 2.6 MB

Got: 3.6 MB Expected: ≤ 1 MB

424 third-party resources (100% of weight)

2 resources over 200KB

426 resources · 3.6 MiB · 424 third-party 2.6 MiB over 1MB target

Image 45% · 1.6 MiB

JavaScript 41% · 1.5 MiB

Document 8% · 300.1 KiB

Font 4% · 140.9 KiB

CSS 1% · 42.4 KiB

Other 1% · 40.6 KiB

~39.7 KiB of savings available

Remove unused JavaScript: 39.7 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

426 resources			3.6 MiB

HTTP Caching

Action

No cache headers

FIX

No cache headers

No Cache-Control header found

Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

Document Compression

Action

Document response served uncompressed

REVIEW

Document response served uncompressed

Main HTML response has no Content-Encoding (uncompressed)

The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.

Main HTML Cache-Control

No Cache-Control header on main HTML response

REVIEW

No Cache-Control header on main HTML response

Main HTML response has no Cache-Control header

Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.

Server-Timing Observability

No Server-Timing header found

REVIEW

No Server-Timing header found

Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

Image Optimization

42 images, 0 KB saveable

PASS

42 images, 0 KB saveable

All images are well-optimized

42 images 1.6 MB

0 oversized -0 KB

2 legacy format

0 missing dimensions CLS risk

A+

Font Loading

7 fonts (141 KB)

PASS

7 fonts (141 KB)

7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

141 KB total

Render-blocking

of 7

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

inter_n5.d7101d5e168594... woff2 swap

Size 0 KB

Load time 1 ms

Start 373 ms