Performance

· 15 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.

998 ms

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

2.37 s

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

0 ms

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

0.012

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

1.36 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.

2.38 s

Page Load Progression

375 ms

750 ms

1.1 s

1.5 s

1.9 s

2.2 s

2.6 s

3.0 s

Checks

8 PASS 1 REVIEW 4 FIX

Page Weight Budget

Action

2.9 MB transferred, 68 requests

FIX

2.9 MB transferred, 68 requests

Page weighs 3.6 MB (2.9 MB transferred)

Images are 2.6 MB — compress or use modern formats

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

Got: 2.6 MB

68 HTTP requests

Estimated 0.62 g CO2 per page load

2.9 MB transferred

68 requests

0.62 g CO2 per page load

Images 2.6 MiB 89%

Fonts 118.6 KiB 4%

JavaScript 111.2 KiB 4%

CSS 65.0 KiB 2%

Other 25.1 KiB 1%

HTML 13.4 KiB 0%

Other 1.4 KiB 0%

Other 1.1 KiB 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

Third-Party Impact

Action

95% third-party, 0 ms blocking

FIX

95% third-party, 0 ms blocking

Third-party code accounts for 95% of page weight (2.8 MiB of 2.9 MiB)

Third-party blocking time is low (0 ms)

95%

First-party Third-party

Page Weight Inventory

Action

68 resources · 2.9 MB · 0 KB savings available

FIX

68 resources · 2.9 MB · 0 KB savings available

Page weight 1.9 MB over 1MB target

Got: 2.9 MB Expected: ≤ 1 MB

32 third-party resources (95% of weight)

5 resources over 200KB

68 resources · 2.9 MiB · 32 third-party 1.9 MiB over 1MB target

Image 90% · 2.6 MiB

Font 4% · 118.6 KiB

JavaScript 4% · 111.2 KiB

CSS 2% · 65.0 KiB

Document 0% · 13.4 KiB

Other 0% · 2.8 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

68 resources			2.9 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.

Image Optimization

28 images, 0 KB saveable

REVIEW

28 images, 0 KB saveable

All images are well-optimized

28 images 2.6 MB

0 oversized -0 KB

28 legacy format

0 missing dimensions CLS risk

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

JS Execution Cost

312ms total JS execution

PASS

312ms total JS execution

https://pinshape.com/: 127ms CPU time

Unattributable: 126ms CPU time

https://pinshape.com/cdn-cgi/challenge-platform/sc...: 58ms CPU time

Third-party scripts: 126ms (41% of total)

Main Thread Breakdown

Other 45% Script Evaluation 25% Style & Layout 17% Rendering 6% Parse HTML & CSS 5%

Script	Total	Scripting	Parse/Compile	Party
https://pinshape.com/	127ms	13ms	0ms	1st
Unattributable	126ms	3ms	0ms	3rd
https://pinshape.com/cdn-cgi/challenge-platform/scripts/jsd/main.js	58ms	56ms	1ms	1st

A+

Font Loading

1 fonts (119 KB)

PASS

1 fonts (119 KB)

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

Web fonts

119 KB total

Render-blocking

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

bootstrap-icons.woff2 woff2 swap

Size 119 KB

Load time 11 ms

Start 551 ms

Risk FOUT — text flashes from fallback to web font

Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need

Optimization checklist

Preload critical fonts (priority=high)
Use woff2 format for all fonts
Set font-display to swap, optional, or fallback
Subset large fonts (≤100 KB each)

Fixing the unchecked items could save ~59 KB and ~118 ms

A+

JS Bundles

22 scripts, 0 KB unused

PASS

22 scripts, 0 KB unused

0 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js	24 KB	—	✓	3rd
https://pinshape.com/static/js/utils/pinshape-utils.js	2 KB	—	✓	1st
https://pinshape.com/static/js/ui/pinshape-ui.js	4 KB	—	✓	1st
https://pinshape.com/static/js/media/pinshape-media.js	3 KB	—	✓	1st
https://pinshape.com/static/js/filters/pinshape-filters.js	5 KB	—	✓	1st
https://pinshape.com/static/js/forms/pinshape-search-forms.js	2 KB	—	✓	1st
https://pinshape.com/static/js/likes/pinshape-likes.js	3 KB	—	✓	1st
https://pinshape.com/static/js/collections/pinshape-collection-subscription.js	3 KB	—	✓	1st
https://pinshape.com/static/js/collections/pinshape-collection-modal.js	3 KB	—	✓	1st
https://pinshape.com/static/js/collections/pinshape-collections-core.js	5 KB	—	✓	1st

A+

Resource Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

No optimization needed

PASS

No optimization needed

No resource hint issues

A+

Green Hosting

Whether the site is served from green-energy infrastructure

PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall

68 requests over 1648ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

Per-script blocking time, transfer cost, and cache headers

INFO

41% of JavaScript execution is third-party

First-party Third-party 126ms · 0KB · $2/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
Unattributable Unattributable	Other	126ms	0 KB	—	$2/mo	Optional

Unattributable

Other

Optional

Execution 126ms

Transfer 0 KB

Monthly Cost $2/mo

41% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.