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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
5
REVIEW
2
PASS
8
INFO
2

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

Mobile Desktop
54
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
77
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

3.90 s

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

10.46 s

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

310 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.

7.29 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.

10.66 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
4.5 MB transferred, 70 requests
FIX
4.5 MB transferred, 70 requests
Critical::
Page weighs 7.3 MB (4.5 MB transferred)
Warning::
Images are 2.7 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.7 MB
Warning::
JavaScript is 500 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 500 KB
Info::
70 HTTP requests
Info::
Estimated 0.93 g CO2 per page load
4.5 MB / 2.4 MB budget
4.5 MB transferred
70 requests
0.93 g CO2 per page load
Images 2.7 MiB 61%
Other 953.4 KiB 21%
JavaScript 500.2 KiB 11%
Fonts 158.2 KiB 3%
CSS 110.0 KiB 2%
HTML 53.9 KiB 1%
Other 6.5 KiB 0%
Other 271 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

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

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 (4.5 MiB of 4.5 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2101ms total JS execution
FIX
2101ms total JS execution
Warning::
Unattributable: 506ms CPU time
Warning::
https://www.tuvsud.com/_next/static/chunks/framewo...: 466ms CPU time
Warning::
https://www.tuvsud.com/en: 258ms CPU time
Info::
https://www.tuvsud.com/_next/static/chunks/pages/%...: 228ms CPU time
Info::
https://www.tuvsud.com/_next/static/chunks/686-WEO...: 201ms CPU time
Warning::
Third-party scripts: 2101ms (100% of total)

Main Thread Breakdown

Script Evaluation 42% Other 27% Style & Layout 13% Script Parsing & Compilation 11% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
Unattributable506ms9ms0ms3rd
https://www.tuvsud.com/_next/static/chunks/framework-WEO-1346.js466ms372ms17ms3rd
https://www.tuvsud.com/en258ms9ms4ms3rd
https://www.tuvsud.com/_next/static/chunks/pages/%5B%5B...path%5D%5D-WEO-1346.js228ms227ms0ms3rd
https://www.tuvsud.com/_next/static/chunks/686-WEO-1346.js201ms28ms96ms3rd
https://assets.adobedtm.com/aa8d49dd9ad8/c60f8008e9db/launch-73985aff2ccb.min.js186ms143ms39ms3rd
https://www.tuvsud.com/_next/static/chunks/main-WEO-1346.js131ms85ms13ms3rd
https://madc.tuvsud.com/m/53f129f37ff89c51/original/-English-Subtitles-TUV-SUD-Corporate-Brand-Video.mp470ms0ms0ms3rd
https://www.tuvsud.com/_next/static/chunks/349-WEO-1346.js54ms1ms53ms3rd
D
Page Weight Inventory
Action
70 resources · 4.5 MB · 234 KB savings available
FIX
70 resources · 4.5 MB · 234 KB savings available
Warning::
Page weight 3.5 MB over 1MB target
Got: 4.5 MB Expected: ≤ 1 MB
Info::
~234 KB of savings available
Warning::
69 third-party resources (100% of weight)
Info::
5 resources over 200KB
70 resources · 4.5 MiB · 69 third-party 3.5 MiB over 1MB target
Image 61% · 2.7 MiB
Media 21% · 953.4 KiB
JavaScript 11% · 500.2 KiB
Font 3% · 158.2 KiB
CSS 2% · 110.0 KiB
Document 1% · 55.0 KiB
Other 0% · 271 B

~234.5 KiB of savings available

Remove unused JavaScript: 234.5 KiB
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
39 images, 0 KB saveable
REVIEW
39 images, 0 KB saveable
Warning::
https://www.tuvsud.com/weoassets/images/icons/arro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.tuvsud.com/weoassets/images/variantico... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.tuvsud.com/weoassets/images/logos/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
39 images 2.7 MB
0 oversized -0 KB
18 legacy format
3 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

C
JS Bundles
Action
14 scripts, 234 KB unused
REVIEW
14 scripts, 234 KB unused
Warning::
https://www.tuvsud.com/_next/static/chunks/686-WEO...: 108 KB unused (62%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.tuvsud.com/_next/static/chunks/349-WEO...: 92 KB unused (84%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets.adobedtm.com/aa8d49dd9ad8/c60f8008e...: 34 KB unused (30%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 234 KB
234 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.tuvsud.com/_next/static/chunks/686-WEO-1346.js174 KB108 KB (62%)✓3rd
https://www.tuvsud.com/_next/static/chunks/349-WEO-1346.js111 KB92 KB (84%)✓3rd
https://assets.adobedtm.com/aa8d49dd9ad8/c60f8008e9db/launch-73985aff2ccb.min.js113 KB34 KB (30%)✓3rd
https://www.tuvsud.com/_next/static/chunks/pages/_app-WEO-1346.js1 KB—✓3rd
https://www.tuvsud.com/_next/static/chunks/framework-WEO-1346.js45 KB—✓3rd
https://www.tuvsud.com/_next/static/chunks/main-WEO-1346.js37 KB—✓3rd
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js0 KB—✓3rd
https://www.tuvsud.com/_next/static/chunks/webpack-WEO-1346.js1 KB—✓3rd
https://www.tuvsud.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js1 KB—✓3rd
https://www.tuvsud.com/_next/static/chunks/pages/%5B%5B...path%5D%5D-WEO-1346.js1 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

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

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 (158 KB)
PASS
4 fonts (158 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

158 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 FCP 3.9 s LCP 10.5 shttps://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Regular.woff2TUVSUDPro-Regular.woff2 https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Regular.woff2 — 53.9 KiB — 112 ms — font-display: swaphttps://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Medium.woff2TUVSUDPro-Medium.woff2 https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Medium.woff2 — 45.3 KiB — 113 ms — font-display: swaphttps://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Bold.woff2TUVSUDPro-Bold.woff2 https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Bold.woff2 — 57.4 KiB — 114 ms — font-display: swaphttps://www.tuvsud.com/_next/static/media/slick.653a4cbb.woffslick.653a4cbb.woff https://www.tuvsud.com/_next/static/media/slick.653a4cbb.woff — 1.6 KiB — 32 ms — font-display: swap
TUVSUDPro-Regular.woff2 woff2 swap
Size 54 KB
Load time 112 ms
Start 249 ms
Risk FOUT — text flashes from fallback to web font
TUVSUDPro-Medium.woff2 woff2 swap
Size 45 KB
Load time 113 ms
Start 249 ms
Risk FOUT — text flashes from fallback to web font
TUVSUDPro-Bold.woff2 woff2 swap
Size 57 KB
Load time 114 ms
Start 250 ms
Risk FOUT — text flashes from fallback to web font
slick.653a4cbb.woff woff swap
Size 2 KB
Load time 32 ms
Start 603 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
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
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
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
70 requests over 2782ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 3.9 s LCP 10.5 shttps://tuvsud.com// https://tuvsud.com/ — 301 — 580 B — 89 ms — h2https://www.tuvsud.com/www.tuvsud.com/ https://www.tuvsud.com/ — 301 — 579 B — 98 ms — h2https://www.tuvsud.com/enwww.tuvsud.com/en https://www.tuvsud.com/en — 200 — 53.2 KiB — 45 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — -1 — 0 B — 105 ms — https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Regular.woff2www.tuvsud.com/weoassets/fonts/TUVS... https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Regular.woff2 — 200 — 53.9 KiB — 112 ms — h3https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Medium.woff2www.tuvsud.com/weoassets/fonts/TUVS... https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Medium.woff2 — 200 — 45.3 KiB — 113 ms — h3https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Bold.woff2www.tuvsud.com/weoassets/fonts/TUVS... https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Bold.woff2 — 200 — 57.4 KiB — 114 ms — h3https://madc.tuvsud.com/transform/87942ca4-e449-48a0-9ce4-0a7a2cd90a2a/shutterstock_2433856545?mw=3840madc.tuvsud.com/transform/87942ca4-... https://madc.tuvsud.com/transform/87942ca4-e449-48a0-9ce4-0a7a2cd90a2a/shutterstock_2433856545?mw=3840 — 200 — 93.0 KiB — 173 ms — h2https://www.tuvsud.com/_next/static/css/c416a00b0876ef27.csswww.tuvsud.com/_next/static/css/c41... https://www.tuvsud.com/_next/static/css/c416a00b0876ef27.css — 200 — 105.6 KiB — 92 ms — h3https://www.tuvsud.com/_next/static/css/a1cf76eeab9cc865.csswww.tuvsud.com/_next/static/css/a1c... https://www.tuvsud.com/_next/static/css/a1cf76eeab9cc865.css — 200 — 4.5 KiB — 40 ms — h3https://www.tuvsud.com/weoassets/images/logos/logo.svgwww.tuvsud.com/weoassets/images/log... https://www.tuvsud.com/weoassets/images/logos/logo.svg — 200 — 1.4 KiB — 43 ms — h3https://www.tuvsud.com/weoassets/images/icons/emailicons.svgwww.tuvsud.com/weoassets/images/ico... https://www.tuvsud.com/weoassets/images/icons/emailicons.svg — 200 — 885 B — 37 ms — h3https://www.tuvsud.com/weoassets/images/varianticons/cancel-white.svgwww.tuvsud.com/weoassets/images/var... https://www.tuvsud.com/weoassets/images/varianticons/cancel-white.svg — 200 — 498 B — 71 ms — h3https://madc.tuvsud.com/transform/f53ec91e-b74e-4794-80a6-accf4bf8268e/GettyImages-2161922969?mw=3840madc.tuvsud.com/transform/f53ec91e-... https://madc.tuvsud.com/transform/f53ec91e-b74e-4794-80a6-accf4bf8268e/GettyImages-2161922969?mw=3840 — 200 — 90.9 KiB — 173 ms — h2https://www.tuvsud.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.jswww.tuvsud.com/cdn-cgi/scripts/5c5d... https://www.tuvsud.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js — 200 — 726 B — 23 ms — h3https://assets.adobedtm.com/aa8d49dd9ad8/c60f8008e9db/launch-73985aff2ccb.min.jsassets.adobedtm.com/aa8d49dd9ad8/c6... https://assets.adobedtm.com/aa8d49dd9ad8/c60f8008e9db/launch-73985aff2ccb.min.js — 200 — 113.4 KiB — 112 ms — h2https://www.tuvsud.com/_next/static/chunks/webpack-WEO-1346.jswww.tuvsud.com/_next/static/chunks/... https://www.tuvsud.com/_next/static/chunks/webpack-WEO-1346.js — 200 — 1.2 KiB — 40 ms — h3https://www.tuvsud.com/_next/static/chunks/framework-WEO-1346.jswww.tuvsud.com/_next/static/chunks/... https://www.tuvsud.com/_next/static/chunks/framework-WEO-1346.js — 200 — 44.6 KiB — 53 ms — h3https://www.tuvsud.com/_next/static/chunks/main-WEO-1346.jswww.tuvsud.com/_next/static/chunks/... https://www.tuvsud.com/_next/static/chunks/main-WEO-1346.js — 200 — 37.0 KiB — 58 ms — h3https://www.tuvsud.com/_next/static/chunks/pages/_app-WEO-1346.jswww.tuvsud.com/_next/static/chunks/... https://www.tuvsud.com/_next/static/chunks/pages/_app-WEO-1346.js — 200 — 1.4 KiB — 51 ms — h3https://www.tuvsud.com/_next/static/chunks/686-WEO-1346.jswww.tuvsud.com/_next/static/chunks/... https://www.tuvsud.com/_next/static/chunks/686-WEO-1346.js — 200 — 174.2 KiB — 61 ms — h3https://www.tuvsud.com/_next/static/chunks/349-WEO-1346.jswww.tuvsud.com/_next/static/chunks/... https://www.tuvsud.com/_next/static/chunks/349-WEO-1346.js — 200 — 110.8 KiB — 112 ms — h3https://www.tuvsud.com/_next/static/chunks/pages/%5B%5B...path%5D%5D-WEO-1346.jswww.tuvsud.com/_next/static/chunks/... https://www.tuvsud.com/_next/static/chunks/pages/%5B%5B...path%5D%5D-WEO-1346.js — 200 — 986 B — 50 ms — h3https://www.tuvsud.com/_next/static/WEO-1346/_buildManifest.jswww.tuvsud.com/_next/static/WEO-134... https://www.tuvsud.com/_next/static/WEO-1346/_buildManifest.js — 200 — 769 B — 93 ms — h3https://www.tuvsud.com/_next/static/WEO-1346/_ssgManifest.jswww.tuvsud.com/_next/static/WEO-134... https://www.tuvsud.com/_next/static/WEO-1346/_ssgManifest.js — 200 — 373 B — 93 ms — h3https://www.tuvsud.com/weoassets/images/simplified/rigtharrow.svgwww.tuvsud.com/weoassets/images/sim... https://www.tuvsud.com/weoassets/images/simplified/rigtharrow.svg — 200 — 478 B — 94 ms — h3https://madc.tuvsud.com/transform/db4b9873-cf0f-4eec-a6a9-3cca45d4afe7/Carmadc.tuvsud.com/transform/db4b9873-... https://madc.tuvsud.com/transform/db4b9873-cf0f-4eec-a6a9-3cca45d4afe7/Car — 200 — 56.4 KiB — 101 ms — h2https://www.tuvsud.com/weoassets/images/icons/arrowforward-white.svgwww.tuvsud.com/weoassets/images/ico... https://www.tuvsud.com/weoassets/images/icons/arrowforward-white.svg — 200 — 466 B — 94 ms — h3https://madc.tuvsud.com/transform/8702b464-93e1-4763-862c-27bbccf578b5/Real-Estatemadc.tuvsud.com/transform/8702b464-... https://madc.tuvsud.com/transform/8702b464-93e1-4763-862c-27bbccf578b5/Real-Estate — 200 — 32.6 KiB — 73 ms — h2https://madc.tuvsud.com/transform/36b9465d-b0b7-41d5-9132-de23a8aae1f9/Factory-Inspectionmadc.tuvsud.com/transform/36b9465d-... https://madc.tuvsud.com/transform/36b9465d-b0b7-41d5-9132-de23a8aae1f9/Factory-Inspection — 200 — 59.7 KiB — 81 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 3.9 s LCP 10.5 shttps://tuvsud.com// https://tuvsud.com/ — 301 — 580 B — 89 ms — h2https://www.tuvsud.com/www.tuvsud.com/ https://www.tuvsud.com/ — 301 — 579 B — 98 ms — h2https://www.tuvsud.com/enwww.tuvsud.com/en https://www.tuvsud.com/en — 200 — 53.2 KiB — 45 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — -1 — 0 B — 105 ms — https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Regular.woff2www.tuvsud.com/weoassets/fonts/TUVS... https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Regular.woff2 — 200 — 53.9 KiB — 112 ms — h3https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Medium.woff2www.tuvsud.com/weoassets/fonts/TUVS... https://www.tuvsud.com/weoassets/fonts/TUVSUDPro/TUVSUDPro-Medium.woff2 — 200 — 45.3 KiB — 113 ms — 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https://www.tuvsud.com/weoassets/images/logos/logo.svg — 200 — 1.4 KiB — 43 ms — h3https://www.tuvsud.com/weoassets/images/icons/emailicons.svgwww.tuvsud.com/weoassets/images/ico... https://www.tuvsud.com/weoassets/images/icons/emailicons.svg — 200 — 885 B — 37 ms — h3https://www.tuvsud.com/weoassets/images/varianticons/cancel-white.svgwww.tuvsud.com/weoassets/images/var... https://www.tuvsud.com/weoassets/images/varianticons/cancel-white.svg — 200 — 498 B — 71 ms — h3https://madc.tuvsud.com/transform/f53ec91e-b74e-4794-80a6-accf4bf8268e/GettyImages-2161922969?mw=3840madc.tuvsud.com/transform/f53ec91e-... https://madc.tuvsud.com/transform/f53ec91e-b74e-4794-80a6-accf4bf8268e/GettyImages-2161922969?mw=3840 — 200 — 90.9 KiB — 173 ms — h2https://www.tuvsud.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.jswww.tuvsud.com/cdn-cgi/scripts/5c5d... https://www.tuvsud.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js — 200 — 726 B — 23 ms — 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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
100% of JavaScript execution is third-party
First-party Third-party 2101ms · 1429KB · €23/mo
Unattributable
Other
Costly
Execution 506ms
Transfer 0 KB
Monthly Cost €6/mo
www.tuvsud.com
Other
Costly
Execution 466ms
Transfer 45 KB
Monthly Cost €5/mo
www.tuvsud.com
Other
Costly
Execution 258ms
Transfer 53 KB
Monthly Cost €3/mo
www.tuvsud.com
Other
Costly
Execution 228ms
Transfer 1 KB
Monthly Cost €2/mo
www.tuvsud.com
Other
Costly
Execution 201ms
Transfer 174 KB
Unused 62%
Monthly Cost €2/mo
assets.adobedtm.com
Other
Optional
Execution 186ms
Transfer 113 KB
Unused 30%
Monthly Cost €2/mo
www.tuvsud.com
Other
Optional
Execution 131ms
Transfer 37 KB
Monthly Cost €1/mo
madc.tuvsud.com
Other
Optional
Execution 70ms
Transfer 895 KB
Monthly Cost €1/mo
www.tuvsud.com
Other
Optional
Execution 54ms
Transfer 111 KB
Unused 84%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 506ms and costs ~€6/month
  • www.tuvsud.com adds 466ms and costs ~€5/month
  • www.tuvsud.com adds 258ms and costs ~€3/month
  • www.tuvsud.com adds 228ms and costs ~€2/month
  • www.tuvsud.com adds 201ms and costs ~€2/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

Unattributable takes 506ms 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.tuvsud.com takes 466ms 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.tuvsud.com takes 258ms 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.tuvsud.com takes 228ms 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.tuvsud.com takes 201ms 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

62% of www.tuvsud.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

84% of www.tuvsud.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.

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