Skip to content
https://redbullshop.com

Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
70
GRADE
C
FIX
5
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
38
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
84
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

19.25 s

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

24.40 s

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

701 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.

19.25 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.

28.36 s

Page Load Progression

781 ms
1.6 s
2.3 s
3.1 s
3.9 s
4.7 s
5.5 s
6.2 s
Checks
16
7 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
5.4 MB transferred, 86 requests
FIX
5.4 MB transferred, 86 requests
Critical::
Page weighs 6.7 MB (5.4 MB transferred)
Warning::
JavaScript is 1.9 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.9 MB
Warning::
Images are 1.4 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.4 MB
Info::
86 HTTP requests
Info::
Estimated 1.1 g CO2 per page load
5.4 MB / 2.4 MB budget
5.4 MB transferred
86 requests
1.1 g CO2 per page load
JavaScript 1.9 MiB 36%
HTML 1.8 MiB 33%
Images 1.4 MiB 26%
Fonts 176.1 KiB 3%
Other 131.0 KiB 2%
Other 3.5 KiB 0%
Other 3.2 KiB 0%
0 2.4 MB 4.9 MB
Over budget

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

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

D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (5.4 MiB of 5.4 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
13082ms total JS execution
FIX
13082ms total JS execution
Warning::
https://www.redbullshop.com/public/bundle.e168194f...: 3980ms CPU time
Warning::
https://www.redbullshop.com/TSPD/08d1a3d40aab20002...: 3697ms CPU time
Warning::
https://www.redbullshop.com/en-int/: 1776ms CPU time
Warning::
Unattributable: 1254ms CPU time
Warning::
https://www.redbullshop.com/public/3952.a2bfa63563...: 1217ms CPU time
Warning::
Third-party scripts: 13082ms (100% of total)

Main Thread Breakdown

Script Evaluation 61% Other 19% Rendering 8% Style & Layout 5% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.redbullshop.com/public/bundle.e168194fb911608b.js3980ms3332ms4ms3rd
https://www.redbullshop.com/TSPD/08d1a3d40aab20002c3e3610a546101c122525d66f11815c456a2803f8c3fa9c3869e7507ef29ed2?type=83697ms3558ms22ms3rd
https://www.redbullshop.com/en-int/1776ms52ms84ms3rd
Unattributable1254ms116ms0ms3rd
https://www.redbullshop.com/public/3952.a2bfa635637a285f.async.js1217ms81ms0ms3rd
https://rm.redbullshop.com/gtm.js?id=GTM-WJGX9BZ378ms273ms45ms3rd
https://cdp-api.redbullshop.com/js/exponea.min.js221ms179ms40ms3rd
https://rm.redbullshop.com/gtm.js?id=GTM-5XHDS9213ms167ms40ms3rd
https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js211ms140ms42ms3rd
https://www.redbullshop.com/TSPD/?type=1881ms69ms1ms3rd

Showing top 10 of 11 scripts

F
JS Bundles
Action
31 scripts, 970 KB unused
FIX
31 scripts, 970 KB unused
Warning::
https://www.redbullshop.com/public/bundle.e168194f...: 472 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.redbullshop.com/public/5624.61cfb86653...: 99 KB unused (85%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202601.1...: 77 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.redbullshop.com/public/8044.bcf190acca...: 67 KB unused (78%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://rm.redbullshop.com/gtm.js?id=GTM-5XHDS9: 67 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 970 KB
970 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.redbullshop.com/public/bundle.e168194fb911608b.js900 KB472 KB (53%)✓3rd
https://www.redbullshop.com/public/5624.61cfb86653de6e12.async.js117 KB99 KB (85%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js127 KB77 KB (61%)✓3rd
https://www.redbullshop.com/public/8044.bcf190accabc38b3.async.js87 KB67 KB (78%)✓3rd
https://rm.redbullshop.com/gtm.js?id=GTM-5XHDS9122 KB67 KB (55%)✓3rd
https://rm.redbullshop.com/gtm.js?id=GTM-WJGX9BZ122 KB63 KB (52%)✓3rd
https://www.redbullshop.com/public/3952.a2bfa635637a285f.async.js92 KB36 KB (39%)✓3rd
https://cdp-api.redbullshop.com/js/exponea.min.js52 KB33 KB (64%)✓3rd
https://www.redbullshop.com/public/4772.26bf143d22b08a15.async.js39 KB30 KB (78%)✓3rd
https://www.redbullshop.com/public/5775.1077f78912dfd3c6.async.js30 KB26 KB (90%)✓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

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

F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
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.

C
Image Optimization
Action
38 images, 0 KB saveable
REVIEW
38 images, 0 KB saveable
Warning::
https://assets.redbullshop.com/q_auto/t_subshop-se... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.redbullshop.com/q_auto/t_subshop-se... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.redbullshop.com/q_auto/t_subshop-se... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.redbullshop.com/q_auto/t_subshop-se... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.redbullshop.com/q_auto/t_subshop-se... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.redbullshop.com/q_auto/t_subshop-se... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.redbullshop.com/q_auto/t_subshop-se... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.redbullshop.com/q_auto/t_subshop-se... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
38 images 1.4 MB
0 oversized -0 KB
17 legacy format
8 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

C
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
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
4 fonts (176 KB)
PASS
4 fonts (176 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

176 KB total

Render-blocking

0

of 4

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 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s FCP 19.2 s LCP 24.4 shttps://resources.redbull.com/fonts/bull/v3/full/Bull-Bold.woff2Bull-Bold.woff2 https://resources.redbull.com/fonts/bull/v3/full/Bull-Bold.woff2 — 42.2 KiB — 0 ms — font-display: swaphttps://resources.redbull.com/fonts/bull-text/v1/full/BullText-Regular.woff2BullText-Regular.woff2 https://resources.redbull.com/fonts/bull-text/v1/full/BullText-Regular.woff2 — 44.8 KiB — 0 ms — font-display: swaphttps://resources.redbull.com/fonts/bull-text/v1/full/BullText-Medium.woff2BullText-Medium.woff2 https://resources.redbull.com/fonts/bull-text/v1/full/BullText-Medium.woff2 — 44.7 KiB — 0 ms — font-display: swaphttps://resources.redbull.com/fonts/bull-text/v1/full/BullText-Bold.woff2BullText-Bold.woff2 https://resources.redbull.com/fonts/bull-text/v1/full/BullText-Bold.woff2 — 44.4 KiB — 0 ms — font-display: swap
Bull-Bold.woff2 woff2 swap
Size 42 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
BullText-Regular.woff2 woff2 swap
Size 45 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
BullText-Medium.woff2 woff2 swap
Size 45 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
BullText-Bold.woff2 woff2 swap
Size 44 KB
Load time 0 ms
Start 0 ms
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)
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
8 hints, 0 missing preconnects
PASS
8 hints, 0 missing preconnects
Info::
Page uses 8 resource hint(s)

Current Resource Hints

preconnect
—
preload
8
dns-prefetch
—
prefetch
—

8 resource hints configured

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
86 requests over 0ms
INFO

Performance analysis not available for this result.

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 13082ms · 3336KB · €69/mo
www.redbullshop.com
Other
Costly
Execution 3980ms
Transfer 900 KB
Unused 53%
Monthly Cost €21/mo
www.redbullshop.com
Other
Costly
Execution 3697ms
Transfer 88 KB
Monthly Cost €20/mo
www.redbullshop.com
Other
Costly
Execution 1776ms
Transfer 1821 KB
Monthly Cost €9/mo
Unattributable
Other
Costly
Execution 1254ms
Transfer 0 KB
Monthly Cost €7/mo
www.redbullshop.com
Other
Costly
Execution 1217ms
Transfer 92 KB
Unused 39%
Monthly Cost €6/mo
rm.redbullshop.com
Other
Costly
Execution 378ms
Transfer 122 KB
Unused 52%
Monthly Cost €2/mo
cdp-api.redbullshop.com
Other
Costly
Execution 221ms
Transfer 52 KB
Unused 64%
Monthly Cost €1/mo
rm.redbullshop.com
Other
Costly
Execution 213ms
Transfer 122 KB
Unused 55%
Monthly Cost €1/mo
OneTrust
Consent
Essential
Execution 211ms
Transfer 127 KB
Unused 61%
Monthly Cost €1/mo
www.redbullshop.com
Other
Optional
Execution 81ms
Transfer 3 KB
Monthly Cost €0/mo
OneTrust
Consent
Essential
Execution 57ms
Transfer 9 KB
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • www.redbullshop.com adds 3980ms and costs ~€21/month
  • www.redbullshop.com adds 3697ms and costs ~€20/month
  • www.redbullshop.com adds 1776ms and costs ~€9/month
  • Unattributable adds 1254ms and costs ~€7/month
  • www.redbullshop.com adds 1217ms and costs ~€6/month
  • rm.redbullshop.com adds 378ms and costs ~€2/month
  • cdp-api.redbullshop.com adds 221ms and costs ~€1/month
  • rm.redbullshop.com adds 213ms and costs ~€1/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.redbullshop.com takes 3980ms 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

53% of www.redbullshop.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

www.redbullshop.com takes 3697ms 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.redbullshop.com takes 1776ms 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 1254ms 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.redbullshop.com takes 1217ms 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

rm.redbullshop.com takes 378ms 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

52% of rm.redbullshop.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

cdp-api.redbullshop.com takes 221ms 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 cdp-api.redbullshop.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

rm.redbullshop.com takes 213ms 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 rm.redbullshop.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

61% of OneTrust'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.

Send Feedback