https://toppetshop.com/products/adjustable-pet-harness-leash-set?fbclid=IwcGRvZgNleHRuA2FlbQEwAGFkaWQAAC_MzKTtOHNydGMGYXBwX2lkDzI3NTI1NDY5MjU5ODI3OQABHpw6YhAqrjU4zEphPgsY2KPiT_9fTDMmmQonSF6k84cQ-lqCw9gODQPU-Duo_aem_RV52P12GbEQodh18DOzAPg&utm_source=facebook&utm_medium=paid&campaign_id=52556248695952&ad_id=52556248696352&utm_id=52556248695952&utm_content=52556248696352&utm_term=52556248696152&utm_campaign=52556248695952

Performance

· 21 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.

553 ms

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

697 ms

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.

0.000

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

1.50 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.

699 ms

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

11 PASS 5 REVIEW 3 FIX

Page Weight Budget

Action

2.5 MB transferred, 205 requests

FIX

2.5 MB transferred, 205 requests

Page weighs 3.7 MB (2.5 MB transferred)

Images are 1.1 MB — compress or use modern formats

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

Got: 1.1 MB

205 HTTP requests — consider bundling or reducing

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

Estimated 0.53 g CO2 per page load

2.5 MB transferred

205 requests

0.53 g CO2 per page load

Images 1.1 MiB 43%

Other 780.1 KiB 30%

JavaScript 447.2 KiB 17%

Fonts 126.9 KiB 5%

HTML 71.1 KiB 3%

CSS 11.8 KiB 0%

Other 9.5 KiB 0%

Other 6.5 KiB 0%

Other 2.8 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

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

Page Weight Inventory

Action

205 resources · 2.5 MB · 127 KB savings available

FIX

205 resources · 2.5 MB · 127 KB savings available

Page weight 2.5 MB exceeds 1 MB target by 1.5 MB

Got: 2.5 MB Expected: ≤ 1 MB

~127 KB of savings available

53 third-party resources (41% of weight)

205 resources · 2.5 MiB · 53 third-party 1.5 MiB over 1MB target

JavaScript 47% · 1.2 MiB

Image 44% · 1.1 MiB

Font 5% · 126.9 KiB

Document 3% · 76.5 KiB

Other 1% · 14.6 KiB

CSS 0% · 11.8 KiB

~126.9 KiB of savings available

Remove unused JavaScript: 126.9 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

205 resources			2.5 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.

ETag present — enables conditional (304) responses

No Cache-Control header

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

Third-Party Impact

41% third-party, 0 ms blocking

REVIEW

41% third-party, 0 ms blocking

Third-party code accounts for 41% of page weight (1.0 MiB of 2.5 MiB)

Third-party blocking time is low (0 ms)

59%

41%

First-party Third-party

Image Optimization

Action

31 images, 0 KB saveable

REVIEW

31 images, 0 KB saveable

https://oss.teemdrop.com/goods-admin/2026/08/05/f3... is missing width/height — may cause layout shift