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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
5
REVIEW
2
PASS
8
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
10
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
71
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
73
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

6.64 s

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

10.63 s

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

900 ms

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

1.605

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

10.95 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.

24.04 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
17
8 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
5.1 MB transferred, 111 requests
FIX
5.1 MB transferred, 111 requests
Critical::
Page weighs 9.8 MB (5.1 MB transferred)
Warning::
Images are 2.9 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.9 MB
Warning::
JavaScript is 1.6 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.6 MB
Info::
Fonts are 425 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 425 KB
Warning::
111 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.1 g CO2 per page load
5.1 MB / 2.4 MB budget
5.1 MB transferred
111 requests
1.1 g CO2 per page load
Images 2.9 MiB 57%
JavaScript 1.6 MiB 31%
Fonts 425.2 KiB 8%
CSS 160.5 KiB 3%
HTML 23.0 KiB 0%
Other 22.1 KiB 0%
Other 3.2 KiB 0%
Other 1.0 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

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

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

F
JS Execution Cost
Action
3987ms total JS execution
FIX
3987ms total JS execution
Warning::
https://ac0c8b7050ff.bac22831.eu-west-1.token.awsw...: 766ms CPU time
Warning::
Unattributable: 587ms CPU time
Warning::
https://brill.com/: 435ms CPU time
Warning::
https://brill.com/skin/63bd09df2089723e864c7521e86...: 399ms CPU time
Warning::
https://brill.com/modules.gz/baseapp/combined-skin...: 382ms CPU time
Warning::
Third-party scripts: 2049ms (51% of total)

Main Thread Breakdown

Script Evaluation 58% Other 16% Script Parsing & Compilation 11% Style & Layout 9% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://ac0c8b7050ff.bac22831.eu-west-1.token.awswaf.com/ac0c8b7050ff/53829109e090/be752f2dce0c/challenge.js766ms571ms110ms3rd
Unattributable587ms113ms0ms3rd
https://brill.com/435ms43ms17ms1st
https://brill.com/skin/63bd09df2089723e864c7521e8629d62162546e6/js/skin-sync.min.js399ms296ms50ms1st
https://brill.com/modules.gz/baseapp/combined-skin-min.js382ms230ms30ms1st
https://www.googletagmanager.com/gtm.js?id=GTM-WF6V4F259ms208ms42ms3rd
https://www.googletagmanager.com/gtag/js?id=G-7D0PQT340Y&cx=c&gtm=4e64h1259ms218ms39ms3rd
https://brill.com/assets/responsive/zf0c61771/js/configurable-layout.js198ms170ms2ms1st
https://brill.com/assets/vendor/z569b5820/require.js167ms142ms7ms1st
https://brill.com/skin/63bd09df2089723e864c7521e8629d62162546e6-2F47E1D8F36617D93FA4276971E556DA/css/style.css95ms0ms0ms1st

Showing top 10 of 17 scripts

F
JS Bundles
Action
51 scripts, 803 KB unused
FIX
51 scripts, 803 KB unused
Warning::
https://ac0c8b7050ff.bac22831.eu-west-1.token.awsw...: 278 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://brill.com/skin/63bd09df2089723e864c7521e86...: 123 KB unused (66%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://brill.com/modules.gz/baseapp/combined-skin...: 107 KB unused (85%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-7D0P...: 68 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WF6...: 61 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 803 KB
803 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://ac0c8b7050ff.bac22831.eu-west-1.token.awswaf.com/ac0c8b7050ff/53829109e090/be752f2dce0c/challenge.js502 KB278 KB (55%)✓3rd
https://brill.com/skin/63bd09df2089723e864c7521e8629d62162546e6/js/skin-sync.min.js187 KB123 KB (66%)✓1st
https://brill.com/modules.gz/baseapp/combined-skin-min.js126 KB107 KB (85%)✓1st
https://www.googletagmanager.com/gtag/js?id=G-7D0PQT340Y&cx=c&gtm=4e64h1173 KB68 KB (39%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WF6V4F143 KB61 KB (43%)✓3rd
https://brill.com/modules.gz/jquery-ui.js67 KB59 KB (88%)✓1st
https://brill.com/assets/vendor/z5ec668da/jquery-ui/jquery-ui.min.js67 KB57 KB (86%)✓1st
https://brill.com/assets/meta/z48b58321/tapestry5/scriptaculous_1_9_0/prototype.js46 KB30 KB (67%)✗1st
https://brill.com/assets/meta/z8c546d97/tapestry5/jquery.js87 KB21 KB (25%)✗1st
https://brill.com/assets/responsive/zf0c61771/js/configurable-layout.js7 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

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

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

D
Page Weight Inventory
Action
111 resources · 5.1 MB · 803 KB savings available
FIX
111 resources · 5.1 MB · 803 KB savings available
Warning::
Page weight 4.1 MB over 1MB target
Got: 5.1 MB Expected: ≤ 1 MB
Info::
~803 KB of savings available
Info::
22 third-party resources (17% of weight)
Info::
5 resources over 200KB
111 resources · 5.1 MiB · 22 third-party 4.1 MiB over 1MB target
Image 57% · 2.9 MiB
JavaScript 31% · 1.6 MiB
Font 8% · 425.2 KiB
CSS 3% · 160.5 KiB
Document 0% · 23.7 KiB
Other 0% · 4.2 KiB

~803.3 KiB of savings available

Remove unused JavaScript: 803.3 KiB
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-store, max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store, max-age=0

DirectiveValueMeaning
no-store—Never cache this response
max-age0Cache for 0 seconds
C
Image Optimization
Action
36 images, 0 KB saveable
REVIEW
36 images, 0 KB saveable
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F70249&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/fileasset//fileasset/appbar/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F64497&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F61437&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F71417&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F70130&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F70315&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/fileasset/home/home_hero_5.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F60119&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F61488&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F63002&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F63085&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F69968&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F71296&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/fileasset/home/home_dlcc.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F64847&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F71301&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/fileasset/home/home_hero_whm2026... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F71210&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F70393&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F59475&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/fileasset/home/home_hero_default... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F70843&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F69619&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F71771&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://brill.com/coverimage?doc=%2Ftitle%2F71221&... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
36 images 2.9 MB
0 oversized -0 KB
15 legacy format
26 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
17% third-party, 0 ms blocking
PASS
17% third-party, 0 ms blocking
Info::
Third-party code accounts for 17% of page weight (910.8 KiB of 5.1 MiB)
Info::
Third-party blocking time is low (0 ms)
83%
17%
First-party Third-party
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
3 fonts (425 KB)
PASS
3 fonts (425 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

425 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 6.6 s LCP 10.6 shttps://brill.com/skin/63bd09df2089723e864c7521e8629d62162546e6/fonts/brill/Brill-Roman.woff2Brill-Roman.woff2 https://brill.com/skin/63bd09df2089723e864c7521e8629d62162546e6/fonts/brill/Brill-Roman.woff2 — 333.2 KiB — 308 ms — font-display: swaphttps://brill.com/skin/63bd09df2089723e864c7521e8629d62162546e6/fonts/pf2-icons.woff2pf2-icons.woff2 https://brill.com/skin/63bd09df2089723e864c7521e8629d62162546e6/fonts/pf2-icons.woff2 — 48.1 KiB — 271 ms — font-display: swaphttps://brill.com/skin/63bd09df2089723e864c7521e8629d62162546e6/fonts/MaterialIcons-Regular.woff2MaterialIcons-Regular.w... https://brill.com/skin/63bd09df2089723e864c7521e8629d62162546e6/fonts/MaterialIcons-Regular.woff2 — 44.0 KiB — 46 ms — font-display: swap
Brill-Roman.woff2 woff2 swap
Size 333 KB
Load time 308 ms
Start 2.4 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
pf2-icons.woff2 woff2 swap
Size 48 KB
Load time 271 ms
Start 2.4 s
Risk FOUT — text flashes from fallback to web font
MaterialIcons-Regular.w... woff2 swap
Size 44 KB
Load time 46 ms
Start 3.3 s
Risk FOUT — text flashes from fallback to web font
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 ~167 KB and ~334 ms

A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
111 requests over 3351ms
INFO
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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
51% of JavaScript execution is third-party
First-party Third-party 2049ms · 853KB · $27/mo
ac0c8b7050ff.bac22831.eu-west-1.token.awswaf.com
Other
Costly
Execution 766ms
Transfer 502 KB
Unused 55%
Monthly Cost $10/mo
Unattributable
Other
Costly
Execution 587ms
Transfer 0 KB
Monthly Cost $8/mo
Google Tag Manager
Tag Manager
Costly
Execution 259ms
Transfer 143 KB
Unused 43%
Monthly Cost $3/mo
Google Tag Manager
Tag Manager
Costly
Execution 259ms
Transfer 173 KB
Unused 39%
Monthly Cost $3/mo
jsDelivr
CDN
Optional
Execution 64ms
Transfer 11 KB
Monthly Cost $1/mo
pftag.scholarlyiq.com
Other
Optional
Execution 62ms
Transfer 4 KB
Monthly Cost $1/mo
Google Analytics
Analytics
Optional
Execution 52ms
Transfer 21 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • ac0c8b7050ff.bac22831.eu-west-1.token.awswaf.com adds 766ms and costs ~$10/month
  • Unattributable adds 587ms and costs ~$8/month
  • Google Tag Manager adds 259ms and costs ~$3/month
  • Google Tag Manager adds 259ms and costs ~$3/month

51% 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

ac0c8b7050ff.bac22831.eu-west-1.token.awswaf.com takes 766ms 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

55% of ac0c8b7050ff.bac22831.eu-west-1.token.awswaf.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

Unattributable takes 587ms 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

Google Tag Manager takes 259ms 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

Google Tag Manager takes 259ms 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

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.

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