Performance

· 14 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

100

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.

1.43 s

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

3.25 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.

0.006

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

2.59 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.

3.25 s

Page Load Progression

485 ms

969 ms

1.5 s

1.9 s

2.4 s

2.9 s

3.4 s

3.9 s

Checks

7 PASS 2 REVIEW 4 FIX

Page Weight Budget

Action

7.3 MB transferred, 156 requests

FIX

7.3 MB transferred, 156 requests

Page weighs 11.0 MB (7.3 MB transferred)

Images are 6.2 MB — compress or use modern formats

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

Got: 6.2 MB

Fonts are 404 KB — consider subsetting or using system fonts

Subset fonts to include only used characters, or switch to system font stacks.

Got: 404 KB

156 HTTP requests — consider bundling or reducing

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

Estimated 1.5 g CO2 per page load

7.3 MB transferred

156 requests

1.5 g CO2 per page load

Images 6.2 MiB 85%

Other 507.4 KiB 7%

Fonts 404.4 KiB 5%

JavaScript 139.9 KiB 2%

CSS 49.4 KiB 1%

HTML 19.8 KiB 0%

Other 13.7 KiB 0%

Other 3.5 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

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

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

99% third-party, 0 ms blocking

FIX

99% third-party, 0 ms blocking

Third-party code accounts for 99% of page weight (7.2 MiB of 7.3 MiB)

Third-party blocking time is low (0 ms)

99%

First-party Third-party

Page Weight Inventory

Action

156 resources · 7.3 MB · 25 KB savings available

FIX

156 resources · 7.3 MB · 25 KB savings available

Page weight 6.3 MB over 1MB target

Got: 7.3 MB Expected: ≤ 1 MB

152 third-party resources (99% of weight)

2 resources over 200KB

156 resources · 7.3 MiB · 152 third-party 6.3 MiB over 1MB target

Image 85% · 6.2 MiB

Media 7% · 507.4 KiB

Font 5% · 404.4 KiB

JavaScript 2% · 139.9 KiB

CSS 1% · 49.4 KiB

Document 0% · 19.8 KiB

Other 0% · 3.5 KiB

~25.1 KiB of savings available

Remove unused JavaScript: 25.1 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

156 resources			7.3 MiB

HTTP Caching

Action

no-store (uncacheable)

FIX

no-store (uncacheable)

Cache-Control: no-store prevents all caching

Intentional for dynamic content, but increases server load for every page view.

Got: no-cache, no-store, must-revalidate

No ETag or Last-Modified header

Conditional requests (304 Not Modified) are not possible without validators.

Cache-Control

no-cache, no-store, must-revalidate

Directive	Value	Meaning
no-cache	—	Cache but always revalidate first
no-store	—	Never cache this response
must-revalidate	—	Must recheck with server after expiry

Image Optimization

90 images, 0 KB saveable

REVIEW

90 images, 0 KB saveable

All images are well-optimized

90 images 6.2 MB

0 oversized -0 KB

90 legacy format

0 missing dimensions CLS risk

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

JS Execution Cost

No JS execution data

PASS

No JS execution data

No significant JS execution detected

A+

Font Loading

5 fonts (404 KB)

PASS

5 fonts (404 KB)

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

Web fonts

404 KB total

Render-blocking

of 5

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

Inter-Bold.woff2 woff2 swap

Size 104 KB

Load time 1.9 s

Start 1.6 s