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

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.

1.42 s

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

2.99 s

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

13 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.

2.33 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.

3.01 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

7 PASS 5 REVIEW 1 FIX

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.

Page Weight Budget

Action

2.0 MB transferred, 42 requests

REVIEW

2.0 MB transferred, 42 requests

Page weighs 3.7 MB (2.0 MB transferred)

Images are 1.3 MB — compress or use modern formats

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

Got: 1.3 MB

Fonts are 313 KB — consider subsetting or using system fonts

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

Got: 313 KB

42 HTTP requests

Estimated 0.43 g CO2 per page load

2.0 MB transferred

42 requests

0.43 g CO2 per page load

Images 1.3 MiB 62%

JavaScript 347.1 KiB 17%

Fonts 313.3 KiB 15%

CSS 113.1 KiB 5%

HTML 18.8 KiB 1%

Other 6.0 KiB 0%

Other 718 B 0%

Other 490 B 0%

0 2.4 MB 4.9 MB

Approaching limit

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

Image Optimization

6 images, 0 KB saveable

REVIEW

6 images, 0 KB saveable

All images are well-optimized

6 images 1.3 MB

0 oversized -0 KB

6 legacy format

0 missing dimensions CLS risk

JS Bundles

Action

17 scripts, 158 KB unused

REVIEW

17 scripts, 158 KB unused

https://acsbapp.com/apps/app/dist/js/app.js: 115 KB unused (53%)

Consider code splitting or tree shaking to reduce unused code.

https://gamblersanonymous.org/wp-content/themes/Im...: 43 KB unused (78%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 158 KB

158 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://acsbapp.com/apps/app/dist/js/app.js	222 KB	115 KB (53%)	✓	3rd
https://gamblersanonymous.org/wp-content/themes/Impreza/js/us.core.min.js?ver=8.33.2	56 KB	43 KB (78%)	✓	1st
https://gamblersanonymous.org/wp-content/plugins/woocommerce/assets/js/frontend/order-attribution.min.js?ver=10.7.0	1 KB	—	✓	1st
https://gamblersanonymous.org/wp-content/plugins/woocommerce/assets/js/jquery-blockui/jquery.blockUI.min.js?ver=2.7.0-wc.10.7.0	3 KB	—	✓	1st
https://gamblersanonymous.org/wp-content/plugins/wp-event-manager/assets/js/jquery-timepicker/jquery.timepicker.min.js?ver=3.3.5	5 KB	—	✓	1st
https://gamblersanonymous.org/wp-content/themes/Impreza/common/js/vendor/magnific-popup.js?ver=8.33.2	7 KB	—	✓	1st
https://gamblersanonymous.org/wp-content/plugins/wp-event-manager/assets/js/common.min.js?ver=3.3.5	1 KB	—	✓	1st
https://gamblersanonymous.org/wp-content/plugins/woocommerce/assets/js/sourcebuster/sourcebuster.min.js?ver=10.7.0	5 KB	—	✓	1st
https://gamblersanonymous.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	29 KB	—	✓	1st
https://gamblersanonymous.org/wp-includes/js/jquery/ui/core.min.js?ver=1.13.3	7 KB	—	✓	1st

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Page Weight Inventory

Action

42 resources · 2.0 MB · 158 KB savings available

REVIEW

42 resources · 2.0 MB · 158 KB savings available

Page weight 1.0 MB over 1MB target

Got: 2.0 MB Expected: ≤ 1 MB

~158 KB of savings available

3 third-party resources (11% of weight)

3 resources over 200KB

42 resources · 2.0 MiB · 3 third-party 1.0 MiB over 1MB target

Image 62% · 1.3 MiB

JavaScript 17% · 347.1 KiB

Font 15% · 313.3 KiB

CSS 5% · 113.1 KiB

Document 1% · 18.8 KiB

Other 0% · 1.2 KiB

~158.0 KiB of savings available

Remove unused JavaScript: 158.0 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

42 resources			2.0 MiB

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

A+

Third-Party Impact

11% third-party, 0 ms blocking

PASS

11% third-party, 0 ms blocking

Third-party code accounts for 11% of page weight (222.6 KiB of 2.0 MiB)

Third-party blocking time is low (0 ms)

89%

First-party Third-party

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

JS Execution Cost

283ms total JS execution

PASS

283ms total JS execution

https://acsbapp.com/apps/app/dist/js/app.js: 103ms CPU time

Unattributable: 65ms CPU time

https://gamblersanonymous.org/: 64ms CPU time

https://gamblersanonymous.org/wp-content/themes/Im...: 51ms CPU time

Third-party scripts: 168ms (59% of total)

Main Thread Breakdown

Script Evaluation 41% Other 24% Style & Layout 15% Script Parsing & Compilation 9% Parse HTML & CSS 8% Rendering 4%

Script	Total	Scripting	Parse/Compile	Party
https://acsbapp.com/apps/app/dist/js/app.js	103ms	65ms	17ms	3rd
Unattributable	65ms	3ms	0ms	3rd
https://gamblersanonymous.org/	64ms	4ms	2ms	1st
https://gamblersanonymous.org/wp-content/themes/Impreza/js/us.core.min.js?ver=8.33.2	51ms	29ms	5ms	1st

A+

Font Loading

3 fonts (313 KB)

PASS

3 fonts (313 KB)

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

Web fonts

313 KB total

Render-blocking

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

HelveticaNeue-Light.woff woff swap

Size 14 KB

Load time 191 ms

Start 1.2 s

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

fa-solid-900.woff2 woff2 swap

Size 134 KB

Load time 496 ms

Start 1.8 s

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

fa-regular-400.woff2 woff2 swap

Size 165 KB

Load time 493 ms

Start 1.8 s

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 ~154 KB and ~308 ms

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

Network Waterfall

42 requests over 2646ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

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

INFO

59% of JavaScript execution is third-party

First-party Third-party 168ms · 222KB · $1/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
acsbapp.com acsbapp.com	Other	103ms	222 KB	53%	$1/mo	Optional
Unattributable Unattributable	Other	65ms	0 KB	—	$0/mo	Optional

acsbapp.com

Other

Optional

Execution 103ms

Transfer 222 KB

Unused 53%

Monthly Cost $1/mo

Unattributable

Other

Optional

Execution 65ms

Transfer 0 KB

Monthly Cost $0/mo

59% 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

53% of acsbapp.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

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.