Performance

· 17 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

100

SEO

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

3.93 s

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

5.53 s

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

50 ms

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

0.011

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

3.93 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.

8.02 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

9 PASS 2 REVIEW 4 FIX

Page Weight Budget

Action

2.5 MB transferred, 76 requests

FIX

2.5 MB transferred, 76 requests

Page weighs 3.6 MB (2.5 MB transferred)

Images are 1.7 MB — compress or use modern formats

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

Got: 1.7 MB

Fonts are 459 KB — consider subsetting or using system fonts

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

Got: 459 KB

76 HTTP requests

Estimated 0.53 g CO2 per page load

2.5 MB transferred

76 requests

0.53 g CO2 per page load

Images 1.7 MiB 69%

Fonts 459.1 KiB 18%

JavaScript 153.1 KiB 6%

CSS 151.9 KiB 6%

HTML 33.8 KiB 1%

Other 794 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

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 (2.5 MiB of 2.5 MiB)

Third-party blocking time is low (0 ms)

100%

First-party Third-party

Page Weight Inventory

Action

76 resources · 2.5 MB · 43 KB savings available

FIX

76 resources · 2.5 MB · 43 KB savings available

Page weight 1.5 MB over 1MB target

Got: 2.5 MB Expected: ≤ 1 MB

75 third-party resources (100% of weight)

2 resources over 200KB

76 resources · 2.5 MiB · 75 third-party 1.5 MiB over 1MB target

Image 69% · 1.7 MiB

Font 18% · 459.1 KiB

JavaScript 6% · 153.1 KiB

CSS 6% · 151.9 KiB

Document 1% · 33.9 KiB

~43.4 KiB of savings available

Remove unused JavaScript: 43.4 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

76 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.

No Cache-Control header

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

Image Optimization

40 images, 0 KB saveable

REVIEW

40 images, 0 KB saveable

All images are well-optimized

40 images 1.7 MB

0 oversized -0 KB

28 legacy format

0 missing dimensions CLS risk

JS Execution Cost

Action

1383ms total JS execution

REVIEW

1383ms total JS execution

https://www.gameshub.com/: 668ms CPU time

Unattributable: 318ms CPU time

https://www.gameshub.com/wp-content/themes/artshub...: 300ms CPU time

https://www.gameshub.com/wp-includes/js/jquery/jqu...: 98ms CPU time

Third-party scripts: 1383ms (100% of total)

Main Thread Breakdown

Other 31% Style & Layout 24% Script Evaluation 23% Parse HTML & CSS 9% Rendering 8% Script Parsing & Compilation 5%

Script	Total	Scripting	Parse/Compile	Party
https://www.gameshub.com/	668ms	18ms	10ms	3rd
Unattributable	318ms	6ms	0ms	3rd
https://www.gameshub.com/wp-content/themes/artshub/dist/js/main.min.js?ver=1752532078	300ms	180ms	35ms	3rd
https://www.gameshub.com/wp-includes/js/jquery/jquery.min.js?ver=latest	98ms	78ms	7ms	3rd

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Font Loading

4 fonts (459 KB)

PASS

4 fonts (459 KB)

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

Web fonts

459 KB total

Render-blocking

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

Roboto-Regular.ttf ttf swap

Size 165 KB

Load time 30 ms

Start 646 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need

x-font-woff;charset=utf... woff swap

Size 31 KB

Load time 34 ms

Start 666 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

Neue-Haas-Grotesk-Displ... ttf swap

Size 100 KB

Load time 33 ms

Start 697 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

Roboto-Bold.ttf ttf swap

Size 164 KB

Load time 34 ms

Start 697 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size
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 ~302 KB and ~604 ms

JS Bundles

18 scripts, 43 KB unused

PASS

18 scripts, 43 KB unused

https://www.gameshub.com/wp-content/themes/artshub...: 43 KB unused (64%)

Consider code splitting or tree shaking to reduce unused code.

https://www.gameshub.com/wp-content/plugins/embedp...: unminified — 4 KB could be saved

Total unused JavaScript: 43 KB

43 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://www.gameshub.com/wp-content/themes/artshub/dist/js/main.min.js?ver=1752532078	69 KB	43 KB (64%)	✓	3rd
https://www.gameshub.com/wp-content/themes/artshub/dist/js/filters.min.js?ver=1747706226	4 KB	—	✓	3rd
https://diffuser-cdn.app-us1.com/diffuser/diffuser.js	8 KB	—	✓	3rd
https://www.gameshub.com/wp-content/plugins/embedpress/assets/js/front.js?ver=4.3.0	13 KB	—	✗	3rd
https://www.gameshub.com/wp-content/plugins/table-of-contents-plus/front.min.js?ver=2411.1	2 KB	—	✓	3rd
https://www.gameshub.com/wp-content/client-mu-plugins/artshub/source/Core/Asset/JS/artshub-active-campaign-cta-manager.js?ver=1666926651	1 KB	—	✓	3rd
https://www.gameshub.com/wp-content/themes/gameshub/src/js/author-loadmore.js	1 KB	—	✓	3rd
https://www.gameshub.com/wp-content/plugins/fi-faq-content/public/js/fi-faq-content-public.js?ver=2.2.0	0 KB	—	✓	3rd
https://www.gameshub.com/wp-includes/js/jquery/jquery.min.js?ver=latest	30 KB	—	✓	3rd
https://www.gameshub.com/wp-content/themes/gameshub/custom.js?ver=6.8.2	1 KB	—	✓	3rd

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

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

1 hints, 0 missing preconnects

PASS

1 hints, 0 missing preconnects

Page uses 1 resource hint(s)

Current Resource Hints

preconnect

—

preload

—

dns-prefetch

prefetch

—

1 resource hints configured

A+

Render-Blocking Resources

No render-blocking resources detected

PASS

No render-blocking resources detected

No render-blocking resources detected in <head>

A+

Third-Party Resources

No third-party resources detected

PASS

No third-party resources detected

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

76 requests over 1432ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

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

INFO

100% of JavaScript execution is third-party

First-party Third-party 1383ms · 132KB · A$24/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
www.gameshub.com www.gameshub.com	Other	668ms	34 KB	—	A$12/mo	Costly
Unattributable Unattributable	Other	318ms	0 KB	—	A$5/mo	Costly
www.gameshub.com www.gameshub.com	Other	300ms	69 KB	64%	A$5/mo	Costly
www.gameshub.com www.gameshub.com	Other	98ms	30 KB	—	A$2/mo	Optional

www.gameshub.com

Other

Costly

Execution 668ms

Transfer 34 KB

Monthly Cost A$12/mo

Unattributable

Other

Costly

Execution 318ms

Transfer 0 KB

Monthly Cost A$5/mo

www.gameshub.com

Other

Costly

Execution 300ms

Transfer 69 KB

Unused 64%

Monthly Cost A$5/mo

www.gameshub.com

Other

Optional

Execution 98ms

Transfer 30 KB

Monthly Cost A$2/mo

These scripts may cost more than they're worth

www.gameshub.com adds 668ms and costs ~A$12/month
Unattributable adds 318ms and costs ~A$5/month
www.gameshub.com adds 300ms and costs ~A$5/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

www.gameshub.com takes 668ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 318ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

www.gameshub.com takes 300ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

64% of www.gameshub.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.