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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
81
GRADE
B
FIX
4
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
70
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
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.

2.26 s

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

2.77 s

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

12 ms

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

0.060

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

2.58 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.

3.06 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
15
7 PASS 2 REVIEW 4 FIX
D
Page Weight Budget
Action
2.1 MB transferred, 43 requests
FIX
2.1 MB transferred, 43 requests
Info::
Page weighs 3.6 MB (2.1 MB transferred)
Warning::
Images are 1.2 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.2 MB
Info::
43 HTTP requests
Info::
Estimated 0.44 g CO2 per page load
2.1 MB / 2.4 MB budget
2.1 MB transferred
43 requests
0.44 g CO2 per page load
Images 1.2 MiB 59%
JavaScript 477.7 KiB 22%
HTML 166.3 KiB 8%
Other 138.7 KiB 6%
Fonts 107.1 KiB 5%
Other 4.7 KiB 0%
Other 2.7 KiB 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

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 (2.1 MiB of 2.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
43 resources · 2.1 MB · 229 KB savings available
FIX
43 resources · 2.1 MB · 229 KB savings available
Warning::
Page weight 1.1 MB over 1MB target
Got: 2.1 MB Expected: ≤ 1 MB
Info::
~229 KB of savings available
Warning::
42 third-party resources (100% of weight)
Info::
2 resources over 200KB
43 resources · 2.1 MiB · 42 third-party 1.1 MiB over 1MB target
Image 59% · 1.3 MiB
JavaScript 22% · 477.7 KiB
Document 8% · 166.3 KiB
CSS 6% · 123.5 KiB
Font 5% · 107.1 KiB
Other 0% · 7.5 KiB

~229.2 KiB of savings available

Remove unused JavaScript: 229.2 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.

B
JS Execution Cost
563ms total JS execution
REVIEW
563ms total JS execution
Warning::
https://www.test.de/: 274ms CPU time
Info::
https://cdn-eu.piano.io/api/tinypass.min.js: 107ms CPU time
Info::
Unattributable: 96ms CPU time
Info::
https://www.test.de/gtm.js?id=GTM-W9MTK4V: 86ms CPU time
Warning::
Third-party scripts: 563ms (100% of total)

Main Thread Breakdown

Script Evaluation 38% Style & Layout 22% Other 19% Script Parsing & Compilation 10% Parse HTML & CSS 6% Rendering 5%
ScriptTotalScriptingParse/CompileParty
https://www.test.de/274ms19ms5ms3rd
https://cdn-eu.piano.io/api/tinypass.min.js107ms84ms16ms3rd
Unattributable96ms6ms0ms3rd
https://www.test.de/gtm.js?id=GTM-W9MTK4V86ms61ms24ms3rd
C
JS Bundles
Action
12 scripts, 229 KB unused
REVIEW
12 scripts, 229 KB unused
Warning::
https://cdn-eu.piano.io/api/tinypass.min.js: 81 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.test.de/gtm.js?id=GTM-W9MTK4V: 75 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.test.de/static/scripts/chunks/vendors-...: 28 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cxense.com/cx.js: 25 KB unused (66%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.test.de/static/scripts/main.min;v16730...: 21 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 229 KB
229 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn-eu.piano.io/api/tinypass.min.js133 KB81 KB (61%)✓3rd
https://www.test.de/gtm.js?id=GTM-W9MTK4V159 KB75 KB (47%)✓3rd
https://cdn.test.de/static/scripts/chunks/vendors-node_modules_vue_dist_vue_esm-browser_prod_js.aeccc5df884570d1b9aa.min.js57 KB28 KB (49%)✓3rd
https://cdn.cxense.com/cx.js38 KB25 KB (66%)✓3rd
https://cdn.test.de/static/scripts/main.min;v167309086.js38 KB21 KB (55%)✓3rd
https://experience-eu.piano.io/xbuilder/experience/load?aid=lzfikWNGpe2 KB—✓3rd
https://cdn.test.de/static/scripts/chunks/vendors-node_modules_dompurify_dist_purify_es_mjs.095418a8b2032ae4e80d.min.js9 KB—✓3rd
https://cdn.test.de/static/scripts/chunks/Quiz-Quiz-js.e76a460ef547b5c10e67.min.js4 KB—✓3rd
https://cdn.test.de/static/scripts/chunks/QuickStart-QuickStart-js.e7c2ba0209958edfe6d1.min.js1 KB—✓3rd
https://cdn.test.de/static/scripts/chunks/vendors-node_modules_swiper_swiper_mjs.b446e1ded974c0d6a856.min.js20 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

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+
Image Optimization
21 images, 0 KB saveable
PASS
21 images, 0 KB saveable
Info::
All images are well-optimized
21 images 1.2 MB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
Font Loading
2 fonts (107 KB)
PASS
2 fonts (107 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

107 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 2.3 s LCP 2.8 shttps://cdn.test.de/static/fonts/thebestvar;v167309086.woff2thebestvar;v167309086.w... https://cdn.test.de/static/fonts/thebestvar;v167309086.woff2 — 68.2 KiB — 214 ms — font-display: swaphttps://cdn.test.de/static/fonts/theantiquabvar-subset;v167309086.woff2theantiquabvar-subset;v... https://cdn.test.de/static/fonts/theantiquabvar-subset;v167309086.woff2 — 38.9 KiB — 214 ms — font-display: swap
thebestvar;v167309086.w... woff2 swap
Size 68 KB
Load time 214 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
theantiquabvar-subset;v... woff2 swap
Size 39 KB
Load time 214 ms
Start 1.6 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)
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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Link11 GmbH

Network Waterfall
43 requests over 2905ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 2.3 s LCP 2.8 shttps://test.de// https://test.de/ — 301 — 111 B — 1.1 s — h2https://www.test.de/www.test.de/ https://www.test.de/ — 200 — 166.3 KiB — 1.0 s — h2https://cdn.test.de/file/image/95/bf/982274cd-96f5-44ef-91d1-c243e70dc990-web/6296735_immobilien-kapitalanlage-f202605037;w1070;a3-2.webpcdn.test.de/file/image/95/bf/982274... https://cdn.test.de/file/image/95/bf/982274cd-96f5-44ef-91d1-c243e70dc990-web/6296735_immobilien-kapitalanlage-f202605037;w1070;a3-2.webp — 200 — 241.3 KiB — 228 ms — h2https://cdn.test.de/static/fonts/thebestvar;v167309086.woff2cdn.test.de/static/fonts/thebestvar... https://cdn.test.de/static/fonts/thebestvar;v167309086.woff2 — 200 — 68.2 KiB — 214 ms — h2https://cdn.test.de/static/fonts/theantiquabvar-subset;v167309086.woff2cdn.test.de/static/fonts/theantiqua... https://cdn.test.de/static/fonts/theantiquabvar-subset;v167309086.woff2 — 200 — 38.9 KiB — 214 ms — h2https://cdn.test.de/static/styles/main.min;v167309086.csscdn.test.de/static/styles/main.min;... https://cdn.test.de/static/styles/main.min;v167309086.css — 200 — 123.5 KiB — 13 ms — h2https://www.test.de/ajax/Customer/GetUserInformationwww.test.de/ajax/Customer/GetUserIn... https://www.test.de/ajax/Customer/GetUserInformation — 200 — 185 B — 233 ms — h2https://www.test.de/static/json/piano-consent-config.jsonwww.test.de/static/json/piano-conse... https://www.test.de/static/json/piano-consent-config.json — 200 — 1.5 KiB — 217 ms — h2https://www.test.de/gtm.js?id=GTM-W9MTK4Vwww.test.de/gtm.js?id=GTM-W9MTK4V https://www.test.de/gtm.js?id=GTM-W9MTK4V — 200 — 158.9 KiB — 380 ms — h2https://cdn.test.de/file/image/d4/61/ffb562df-91b4-4fed-826f-5bb4a9668b1d-web/Hausratversicherung;w292.webpcdn.test.de/file/image/d4/61/ffb562... https://cdn.test.de/file/image/d4/61/ffb562df-91b4-4fed-826f-5bb4a9668b1d-web/Hausratversicherung;w292.webp — 200 — 5.2 KiB — 20 ms — h2https://cdn.test.de/file/image/e8/72/7713e691-38c7-4495-956d-a1d4277f0eb8-web/zg-Smartphones-2604;w292.webpcdn.test.de/file/image/e8/72/7713e6... https://cdn.test.de/file/image/e8/72/7713e691-38c7-4495-956d-a1d4277f0eb8-web/zg-Smartphones-2604;w292.webp — 200 — 22.5 KiB — 20 ms — h2https://cdn.test.de/file/image/46/11/1290492e-df34-44d7-8b46-194e55484e3f-web/Steuerprogramme;w292.webpcdn.test.de/file/image/46/11/129049... https://cdn.test.de/file/image/46/11/1290492e-df34-44d7-8b46-194e55484e3f-web/Steuerprogramme;w292.webp — 200 — 19.3 KiB — 11 ms — h2https://cdn.test.de/file/image/d7/49/d6b0e17c-e7bb-458a-8821-12ad90d01bb7-web/zg-smartwatches-2605;w292.webpcdn.test.de/file/image/d7/49/d6b0e1... https://cdn.test.de/file/image/d7/49/d6b0e17c-e7bb-458a-8821-12ad90d01bb7-web/zg-smartwatches-2605;w292.webp — 200 — 9.2 KiB — 11 ms — h2https://cdn.test.de/file/image/38/15/a9da9576-9ea3-4c86-97d5-0be9eb5624d8-web/zg-Kuehlgeraete-2603;w292.webpcdn.test.de/file/image/38/15/a9da95... https://cdn.test.de/file/image/38/15/a9da9576-9ea3-4c86-97d5-0be9eb5624d8-web/zg-Kuehlgeraete-2603;w292.webp — 200 — 7.9 KiB — 18 ms — h2https://cdn.test.de/file/image/76/31/c3efe8e5-2c9f-4be3-ae2d-e2f6455b65af-web/Fonds-und-ETF-Fondsfinder;w292.webpcdn.test.de/file/image/76/31/c3efe8... https://cdn.test.de/file/image/76/31/c3efe8e5-2c9f-4be3-ae2d-e2f6455b65af-web/Fonds-und-ETF-Fondsfinder;w292.webp — 200 — 3.5 KiB — 16 ms — h2https://cdn.test.de/file/image/d4/61/f6f6050f-7f1d-4184-afc2-0483393d197d-web/6297045_reform-krankenversicherung-a202604;w835;a3-2.webpcdn.test.de/file/image/d4/61/f6f605... https://cdn.test.de/file/image/d4/61/f6f6050f-7f1d-4184-afc2-0483393d197d-web/6297045_reform-krankenversicherung-a202604;w835;a3-2.webp — 200 — 36.4 KiB — 81 ms — h2https://cdn.test.de/file/image/a3/21/25c102b1-360c-41a0-8d92-fff42a1d6d8c-web/6298622_holy-energy-koffein-sw2604;w835;a3-2.webpcdn.test.de/file/image/a3/21/25c102... https://cdn.test.de/file/image/a3/21/25c102b1-360c-41a0-8d92-fff42a1d6d8c-web/6298622_holy-energy-koffein-sw2604;w835;a3-2.webp — 200 — 55.6 KiB — 87 ms — h2https://cdn.test.de/file/image/25/a3/2834dcc1-1923-42a4-9a83-6e81eaffc100-web/6295309_steuerprogramme-app-f202605;w835;a3-2.webpcdn.test.de/file/image/25/a3/2834dc... https://cdn.test.de/file/image/25/a3/2834dcc1-1923-42a4-9a83-6e81eaffc100-web/6295309_steuerprogramme-app-f202605;w835;a3-2.webp — 200 — 68.4 KiB — 92 ms — h2https://cdn.test.de/file/image/21/81/813f088e-74fb-4275-aed8-d3ebc8e04aca-web/6283693_produktfinder-update-smartphone-2602;w835;a3-2.webpcdn.test.de/file/image/21/81/813f08... https://cdn.test.de/file/image/21/81/813f088e-74fb-4275-aed8-d3ebc8e04aca-web/6283693_produktfinder-update-smartphone-2602;w835;a3-2.webp — 200 — 37.7 KiB — 58 ms — h2https://cdn.test.de/static/images/modules/quiz/quiz;v167309086.webpcdn.test.de/static/images/modules/q... https://cdn.test.de/static/images/modules/quiz/quiz;v167309086.webp — 200 — 56.6 KiB — 111 ms — h2https://cdn.test.de/file/image/17/23/b850131a-cce0-45e3-88dd-1c5f384f7577-web/6295113_boerse-aktuell-maerkte-a202604;w835;a3-2.webpcdn.test.de/file/image/17/23/b85013... https://cdn.test.de/file/image/17/23/b850131a-cce0-45e3-88dd-1c5f384f7577-web/6295113_boerse-aktuell-maerkte-a202604;w835;a3-2.webp — 200 — 106.0 KiB — 96 ms — h2https://cdn.test.de/file/image/08/a4/0059a454-a8b0-4bc6-95d6-01b0d7f71308-web/6287551_gas-vertrag-wechsel-a202603;w835;a3-2.webpcdn.test.de/file/image/08/a4/0059a4... https://cdn.test.de/file/image/08/a4/0059a454-a8b0-4bc6-95d6-01b0d7f71308-web/6287551_gas-vertrag-wechsel-a202603;w835;a3-2.webp — 200 — 48.2 KiB — 35 ms — h2https://cdn.test.de/file/image/a8/93/95d785c4-350c-412f-9e8f-b077373e9ba8-web/6212214_boersenbeben-a202504;w835;a3-2.webpcdn.test.de/file/image/a8/93/95d785... https://cdn.test.de/file/image/a8/93/95d785c4-350c-412f-9e8f-b077373e9ba8-web/6212214_boersenbeben-a202504;w835;a3-2.webp — 200 — 61.1 KiB — 87 ms — h2https://cdn.test.de/file/image/c0/7c/7f5fdd4b-e6a6-4eb4-b244-fc7806099f70-web/6296634_depot-krisenzeiten-f202605;w835;a3-2.webpcdn.test.de/file/image/c0/7c/7f5fdd... https://cdn.test.de/file/image/c0/7c/7f5fdd4b-e6a6-4eb4-b244-fc7806099f70-web/6296634_depot-krisenzeiten-f202605;w835;a3-2.webp — 200 — 21.2 KiB — 56 ms — h2https://cdn.test.de/file/image/63/71/738acdce-36bd-4015-bbee-238704d334dc-web/6296891_bkk-firmus-a202604;w835;a3-2.webpcdn.test.de/file/image/63/71/738acd... https://cdn.test.de/file/image/63/71/738acdce-36bd-4015-bbee-238704d334dc-web/6296891_bkk-firmus-a202604;w835;a3-2.webp — 200 — 49.0 KiB — 91 ms — h2https://cdn.test.de/file/image/c7/97/9f792b80-2432-4e1d-bb70-bd3c7286cba7-web/6271998_krankenkassen-vergleich-a202512;w835;a3-2.webpcdn.test.de/file/image/c7/97/9f792b... https://cdn.test.de/file/image/c7/97/9f792b80-2432-4e1d-bb70-bd3c7286cba7-web/6271998_krankenkassen-vergleich-a202512;w835;a3-2.webp — 200 — 56.9 KiB — 87 ms — h2https://cdn.test.de/file/image/25/31/3166c131-975a-444e-a2f7-83ce2ec2654e-web/6161726_krankenkasse-wechseln-f202412098;w835;a3-2.webpcdn.test.de/file/image/25/31/3166c1... https://cdn.test.de/file/image/25/31/3166c131-975a-444e-a2f7-83ce2ec2654e-web/6161726_krankenkasse-wechseln-f202412098;w835;a3-2.webp — 200 — 253.2 KiB — 100 ms — h2https://experience-eu.piano.io/xbuilder/experience/load?aid=lzfikWNGpeexperience-eu.piano.io/xbuilder/exp... https://experience-eu.piano.io/xbuilder/experience/load?aid=lzfikWNGpe — 200 — 2.3 KiB — 64 ms — h3https://cdn.test.de/static/scripts/main.min;v167309086.jscdn.test.de/static/scripts/main.min... https://cdn.test.de/static/scripts/main.min;v167309086.js — 200 — 38.0 KiB — 44 ms — h2https://cdn-eu.piano.io/api/tinypass.min.jscdn-eu.piano.io/api/tinypass.min.js https://cdn-eu.piano.io/api/tinypass.min.js — 200 — 132.8 KiB — 64 ms — h3
0 ms 1.0 s 2.0 s 3.0 s FCP 2.3 s LCP 2.8 shttps://test.de// https://test.de/ — 301 — 111 B — 1.1 s — h2https://www.test.de/www.test.de/ https://www.test.de/ — 200 — 166.3 KiB — 1.0 s — h2https://cdn.test.de/file/image/95/bf/982274cd-96f5-44ef-91d1-c243e70dc990-web/6296735_immobilien-kapitalanlage-f202605037;w1070;a3-2.webpcdn.test.de/file/image/95/bf/982274... https://cdn.test.de/file/image/95/bf/982274cd-96f5-44ef-91d1-c243e70dc990-web/6296735_immobilien-kapitalanlage-f202605037;w1070;a3-2.webp — 200 — 241.3 KiB — 228 ms — h2https://cdn.test.de/static/fonts/thebestvar;v167309086.woff2cdn.test.de/static/fonts/thebestvar... https://cdn.test.de/static/fonts/thebestvar;v167309086.woff2 — 200 — 68.2 KiB — 214 ms — h2https://cdn.test.de/static/fonts/theantiquabvar-subset;v167309086.woff2cdn.test.de/static/fonts/theantiqua... https://cdn.test.de/static/fonts/theantiquabvar-subset;v167309086.woff2 — 200 — 38.9 KiB — 214 ms — h2https://cdn.test.de/static/styles/main.min;v167309086.csscdn.test.de/static/styles/main.min;... https://cdn.test.de/static/styles/main.min;v167309086.css — 200 — 123.5 KiB — 13 ms — h2https://www.test.de/ajax/Customer/GetUserInformationwww.test.de/ajax/Customer/GetUserIn... https://www.test.de/ajax/Customer/GetUserInformation — 200 — 185 B — 233 ms — h2https://www.test.de/static/json/piano-consent-config.jsonwww.test.de/static/json/piano-conse... https://www.test.de/static/json/piano-consent-config.json — 200 — 1.5 KiB — 217 ms — h2https://www.test.de/gtm.js?id=GTM-W9MTK4Vwww.test.de/gtm.js?id=GTM-W9MTK4V https://www.test.de/gtm.js?id=GTM-W9MTK4V — 200 — 158.9 KiB — 380 ms — h2https://cdn.test.de/file/image/d4/61/ffb562df-91b4-4fed-826f-5bb4a9668b1d-web/Hausratversicherung;w292.webpcdn.test.de/file/image/d4/61/ffb562... https://cdn.test.de/file/image/d4/61/ffb562df-91b4-4fed-826f-5bb4a9668b1d-web/Hausratversicherung;w292.webp — 200 — 5.2 KiB — 20 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 563ms · 458KB · €6/mo
www.test.de
Other
Costly
Execution 274ms
Transfer 166 KB
Monthly Cost €3/mo
cdn-eu.piano.io
Other
Optional
Execution 107ms
Transfer 133 KB
Unused 61%
Monthly Cost €1/mo
Unattributable
Other
Optional
Execution 96ms
Transfer 0 KB
Monthly Cost €1/mo
www.test.de
Other
Optional
Execution 86ms
Transfer 159 KB
Unused 47%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.test.de adds 274ms and costs ~€3/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.test.de takes 274ms 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

61% of cdn-eu.piano.io'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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