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https://lmu.de

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
82
GRADE
B
FIX
2
REVIEW
6
PASS
7
INFO
2

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

Mobile Desktop
73
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
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.

3.64 s

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

4.54 s

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

126 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.

4.88 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.

5.67 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
7 PASS 6 REVIEW 2 FIX
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 (1.3 MiB of 1.3 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
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
Page Weight Budget
1.3 MB transferred, 33 requests
REVIEW
1.3 MB transferred, 33 requests
Info::
Page weighs 3.3 MB (1.3 MB transferred)
Info::
33 HTTP requests
Info::
Estimated 0.27 g CO2 per page load
1.3 MB / 2.4 MB budget
1.3 MB transferred
33 requests
0.27 g CO2 per page load
Images 761.0 KiB 58%
JavaScript 274.5 KiB 21%
Fonts 143.1 KiB 11%
CSS 84.2 KiB 6%
Other 29.4 KiB 2%
HTML 8.3 KiB 1%
Other 8.2 KiB 1%
Other 201 B 0%
0 2.4 MB 4.9 MB
Under budget
C
Image Optimization
Action
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Warning::
https://cms-cdn.lmu.de/media/lmu/temp/173_full_1_1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cms-cdn.lmu.de/media/newsroom-content-hub/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cms-cdn.lmu.de/media/archiv-mediapool-easy... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cms-cdn.lmu.de/media/lmu/temp/164_full_1_1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cms-cdn.lmu.de/media/newsroom-content-hub/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cms-cdn.lmu.de/assets/img/Logo_LMU.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
11 images 761 KB
0 oversized -0 KB
11 legacy format
6 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

C
JS Execution Cost
Action
1389ms total JS execution
REVIEW
1389ms total JS execution
Warning::
Unattributable: 402ms CPU time
Warning::
https://www.lmu.de/de/index.html: 344ms CPU time
Warning::
https://cms-cdn.lmu.de/assets/scripts/app.bundle.j...: 262ms CPU time
Info::
https://cms-cdn.lmu.de/assets/scripts/vendors-app....: 172ms CPU time
Info::
https://cms-cdn.lmu.de/assets/scripts/bundle.vue_3...: 92ms CPU time
Warning::
Third-party scripts: 1389ms (100% of total)

Main Thread Breakdown

Script Evaluation 36% Other 32% Style & Layout 12% Script Parsing & Compilation 10% Rendering 6% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
Unattributable402ms15ms0ms3rd
https://www.lmu.de/de/index.html344ms53ms2ms3rd
https://cms-cdn.lmu.de/assets/scripts/app.bundle.js262ms209ms50ms3rd
https://cms-cdn.lmu.de/assets/scripts/vendors-app.bundle.js172ms94ms28ms3rd
https://cms-cdn.lmu.de/assets/scripts/bundle.vue_3.js92ms60ms31ms3rd
https://cms-cdn.lmu.de/assets/scripts/jquery-3.5.1.min.js61ms37ms11ms3rd
https://cms-cdn.lmu.de/assets/css/app.bundle.css?v=2026032457ms0ms0ms3rd
C
JS Bundles
Action
10 scripts, 159 KB unused
REVIEW
10 scripts, 159 KB unused
Warning::
https://cms-cdn.lmu.de/assets/scripts/app.bundle.j...: 44 KB unused (74%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cms-cdn.lmu.de/assets/scripts/bundle.vue_3...: 38 KB unused (66%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cms-cdn.lmu.de/assets/vuejs/v3_3_4_vue_min...: 33 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cms-cdn.lmu.de/assets/scripts/vendors-app....: 24 KB unused (62%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cms-cdn.lmu.de/assets/scripts/jquery-3.5.1...: 20 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 159 KB
159 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cms-cdn.lmu.de/assets/scripts/app.bundle.js60 KB44 KB (74%)✓3rd
https://cms-cdn.lmu.de/assets/scripts/bundle.vue_3.js58 KB38 KB (66%)✓3rd
https://cms-cdn.lmu.de/assets/vuejs/v3_3_4_vue_min.js49 KB33 KB (69%)✓3rd
https://cms-cdn.lmu.de/assets/scripts/vendors-app.bundle.js38 KB24 KB (62%)✓3rd
https://cms-cdn.lmu.de/assets/scripts/jquery-3.5.1.min.js31 KB20 KB (67%)✓3rd
https://cms-cdn.lmu.de/assets/vuejs/v4_0_2_vuex.min.js5 KB—✓3rd
https://cms-cdn.lmu.de/assets/vuejs/v4_2_6_es6-promise_auto.min.js3 KB—✓3rd
https://cms-cdn.lmu.de/assets/vuejs/v0_18_0_axios.min.js5 KB—✓3rd
https://web-analytics.lmu.de/matomo.js25 KB—✓3rd
https://cms-cdn.lmu.de/assets/scripts/runtime.bundle.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

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

C
Page Weight Inventory
Action
33 resources · 1.3 MB · 159 KB savings available
REVIEW
33 resources · 1.3 MB · 159 KB savings available
Warning::
Page weight 285 KB over 1MB target
Got: 1.3 MB Expected: ≤ 1 MB
Info::
~159 KB of savings available
Warning::
32 third-party resources (100% of weight)
Info::
1 resources over 200KB
33 resources · 1.3 MiB · 32 third-party 284.8 KiB over 1MB target
Image 59% · 768.6 KiB
JavaScript 21% · 274.5 KiB
Font 11% · 143.1 KiB
CSS 6% · 84.2 KiB
Other 2% · 29.6 KiB
Document 1% · 8.9 KiB

~158.6 KiB of savings available

Remove unused JavaScript: 158.6 KiB
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
5 fonts (143 KB)
PASS
5 fonts (143 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

143 KB total

Render-blocking

0

of 5

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 3.6 s LCP 4.5 shttps://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-300.woff2roboto-v18-latin-300.woff2 https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-300.woff2 — 15.5 KiB — 675 ms — font-display: swaphttps://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-regular.woff2roboto-v18-latin-regula... https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-regular.woff2 — 15.4 KiB — 675 ms — font-display: swaphttps://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-italic.woff2roboto-v18-latin-italic... https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-italic.woff2 — 17.0 KiB — 676 ms — font-display: swaphttps://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-700.woff2roboto-v18-latin-700.woff2 https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-700.woff2 — 15.5 KiB — 677 ms — font-display: swaphttps://cms-cdn.lmu.de/assets/fonts/robotoserif-semibold.woff2robotoserif-semibold.woff2 https://cms-cdn.lmu.de/assets/fonts/robotoserif-semibold.woff2 — 79.5 KiB — 787 ms — font-display: swap
roboto-v18-latin-300.woff2 woff2 swap
Size 16 KB
Load time 675 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
roboto-v18-latin-regula... woff2 swap
Size 15 KB
Load time 675 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
roboto-v18-latin-italic... woff2 swap
Size 17 KB
Load time 676 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
roboto-v18-latin-700.woff2 woff2 swap
Size 16 KB
Load time 677 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
robotoserif-semibold.woff2 woff2 swap
Size 80 KB
Load time 787 ms
Start 1.2 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
5 hints, 0 missing preconnects
PASS
5 hints, 0 missing preconnects
Info::
Page uses 5 resource hint(s)

Current Resource Hints

preconnect
—
preload
5
dns-prefetch
—
prefetch
—

5 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
33 requests over 3969ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 3.6 s LCP 4.5 shttps://lmu.de// https://lmu.de/ — 301 — 285 B — 483 ms — http/1.1https://www.lmu.de/www.lmu.de/ https://www.lmu.de/ — 302 — 286 B — 600 ms — http/1.1https://www.lmu.de/de/index.htmlwww.lmu.de/de/index.html https://www.lmu.de/de/index.html — 200 — 8.3 KiB — 108 ms — http/1.1https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-300.woff2cms-cdn.lmu.de/assets/fonts/roboto-... https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-300.woff2 — 200 — 15.5 KiB — 675 ms — http/1.1https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-regular.woff2cms-cdn.lmu.de/assets/fonts/roboto-... https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-regular.woff2 — 200 — 15.4 KiB — 675 ms — http/1.1https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-italic.woff2cms-cdn.lmu.de/assets/fonts/roboto-... https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-italic.woff2 — 200 — 17.0 KiB — 676 ms — http/1.1https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-700.woff2cms-cdn.lmu.de/assets/fonts/roboto-... https://cms-cdn.lmu.de/assets/fonts/roboto-v18-latin-700.woff2 — 200 — 15.5 KiB — 677 ms — http/1.1https://cms-cdn.lmu.de/assets/fonts/robotoserif-semibold.woff2cms-cdn.lmu.de/assets/fonts/robotos... https://cms-cdn.lmu.de/assets/fonts/robotoserif-semibold.woff2 — 200 — 79.5 KiB — 787 ms — http/1.1https://cms-cdn.lmu.de/assets/css/app.bundle.css?v=20260324cms-cdn.lmu.de/assets/css/app.bundl... https://cms-cdn.lmu.de/assets/css/app.bundle.css?v=20260324 — 200 — 84.2 KiB — 783 ms — http/1.1https://cms-cdn.lmu.de/assets/scripts/jquery-3.5.1.min.jscms-cdn.lmu.de/assets/scripts/jquer... https://cms-cdn.lmu.de/assets/scripts/jquery-3.5.1.min.js — 200 — 30.7 KiB — 698 ms — http/1.1https://cms-cdn.lmu.de/assets/vuejs/v3_3_4_vue_min.jscms-cdn.lmu.de/assets/vuejs/v3_3_4_... https://cms-cdn.lmu.de/assets/vuejs/v3_3_4_vue_min.js — 200 — 48.5 KiB — 785 ms — http/1.1https://cms-cdn.lmu.de/assets/vuejs/v4_0_2_vuex.min.jscms-cdn.lmu.de/assets/vuejs/v4_0_2_... https://cms-cdn.lmu.de/assets/vuejs/v4_0_2_vuex.min.js — 200 — 5.3 KiB — 604 ms — http/1.1https://cms-cdn.lmu.de/assets/vuejs/v4_2_6_es6-promise_auto.min.jscms-cdn.lmu.de/assets/vuejs/v4_2_6_... https://cms-cdn.lmu.de/assets/vuejs/v4_2_6_es6-promise_auto.min.js — 200 — 2.8 KiB — 602 ms — http/1.1https://cms-cdn.lmu.de/assets/vuejs/v0_18_0_axios.min.jscms-cdn.lmu.de/assets/vuejs/v0_18_0... https://cms-cdn.lmu.de/assets/vuejs/v0_18_0_axios.min.js — 200 — 4.8 KiB — 603 ms — http/1.1https://cms-cdn.lmu.de/assets/img/Logo_LMU.svgcms-cdn.lmu.de/assets/img/Logo_LMU.... https://cms-cdn.lmu.de/assets/img/Logo_LMU.svg — 200 — 19.3 KiB — 196 ms — http/1.1https://cms-cdn.lmu.de/media/newsroom-content-hub/photos/akten_imago-wolterfoto-2_2_1_format_s.jpgcms-cdn.lmu.de/media/newsroom-conte... https://cms-cdn.lmu.de/media/newsroom-content-hub/photos/akten_imago-wolterfoto-2_2_1_format_s.jpg — 200 — 20.0 KiB — 196 ms — http/1.1https://cms-cdn.lmu.de/media/archiv-mediapool-easydb/forschung-easydb/prof_kiebler_2632_full_1_1_format_s.jpgcms-cdn.lmu.de/media/archiv-mediapo... https://cms-cdn.lmu.de/media/archiv-mediapool-easydb/forschung-easydb/prof_kiebler_2632_full_1_1_format_s.jpg — 200 — 14.3 KiB — 105 ms — http/1.1https://cms-cdn.lmu.de/media/lmu/temp/164_full_1_1_1_format_s.jpgcms-cdn.lmu.de/media/lmu/temp/164_f... https://cms-cdn.lmu.de/media/lmu/temp/164_full_1_1_1_format_s.jpg — 200 — 20.2 KiB — 98 ms — http/1.1https://cms-cdn.lmu.de/media/lmu/temp/173_full_1_1_1_format_s.jpgcms-cdn.lmu.de/media/lmu/temp/173_f... https://cms-cdn.lmu.de/media/lmu/temp/173_full_1_1_1_format_s.jpg — 200 — 14.6 KiB — 102 ms — http/1.1https://cms-cdn.lmu.de/assets/scripts/vendors-app.bundle.jscms-cdn.lmu.de/assets/scripts/vendo... https://cms-cdn.lmu.de/assets/scripts/vendors-app.bundle.js — 200 — 38.3 KiB — 207 ms — http/1.1https://web-analytics.lmu.de/matomo.jsweb-analytics.lmu.de/matomo.js https://web-analytics.lmu.de/matomo.js — 200 — 25.3 KiB — 600 ms — h2https://cms-cdn.lmu.de/assets/icons/sprites/sprites-sprite.svgcms-cdn.lmu.de/assets/icons/sprites... https://cms-cdn.lmu.de/assets/icons/sprites/sprites-sprite.svg — 200 — 101.4 KiB — 311 ms — http/1.1https://cms-cdn.lmu.de/assets/scripts/runtime.bundle.jscms-cdn.lmu.de/assets/scripts/runti... https://cms-cdn.lmu.de/assets/scripts/runtime.bundle.js — 200 — 1.2 KiB — 100 ms — http/1.1https://cms-cdn.lmu.de/assets/scripts/app.bundle.jscms-cdn.lmu.de/assets/scripts/app.b... https://cms-cdn.lmu.de/assets/scripts/app.bundle.js — 200 — 60.2 KiB — 109 ms — http/1.1https://cms-cdn.lmu.de/assets/scripts/bundle.vue_3.jscms-cdn.lmu.de/assets/scripts/bundl... https://cms-cdn.lmu.de/assets/scripts/bundle.vue_3.js — 200 — 57.5 KiB — 204 ms — http/1.1https://cms-cdn.lmu.de/media/newsroom-content-hub/photos/newsroom_stock/ukraine_imago-agefotostock_flex_kl_format_s.jpgcms-cdn.lmu.de/media/newsroom-conte... https://cms-cdn.lmu.de/media/newsroom-content-hub/photos/newsroom_stock/ukraine_imago-agefotostock_flex_kl_format_s.jpg — 200 — 3.7 KiB — 100 ms — http/1.1https://cms-cdn.lmu.de/assets/media/footer/footer-map.pngcms-cdn.lmu.de/assets/media/footer/... https://cms-cdn.lmu.de/assets/media/footer/footer-map.png — 200 — 17.8 KiB — 100 ms — http/1.1https://cms-cdn.lmu.de/assets/img/footer-bg.svgcms-cdn.lmu.de/assets/img/footer-bg... https://cms-cdn.lmu.de/assets/img/footer-bg.svg — 200 — 295.6 KiB — 296 ms — http/1.1https://cms-cdn.lmu.de/media/newsroom-content-hub/photos/akten_imago-wolterfoto-2_2_1_format_m.jpgcms-cdn.lmu.de/media/newsroom-conte... https://cms-cdn.lmu.de/media/newsroom-content-hub/photos/akten_imago-wolterfoto-2_2_1_format_m.jpg — 200 — 55.2 KiB — 197 ms — http/1.1https://web-analytics.lmu.de/matomo.php?action_name=Startseite%20-%20LMU%20M%C3%BCnchen&idsite=98&rec=1&r=306787&h=19&m=57&s=2&url=https%3A%2F%2Fwww.lmu.de%2Fde%2Findex.html&_id=&_idn=1&send_image=0&_refts=0&pv_id=yaTsmd&pf_net=0&pf_srv=106&pf_tfr=1&pf_dm1=1173&uadata=%7B%22formFactors%22%3A%5B%22Desktop%22%5D%2C%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Not-A.Brand%22%2C%22version%22%3A%2224.0.0.0%22%7D%2C%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22146.0.7680.164%22%7D%5D%2C%22mobile%22%3Atrue%2C%22model%22%3A%22moto%20g%20power%20(2022)%22%2C%22platform%22%3A%22Android%22%2C%22platformVersion%22%3A%2211.0%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=412x823web-analytics.lmu.de/matomo.php?act... https://web-analytics.lmu.de/matomo.php?action_name=Startseite%20-%20LMU%20M%C3%BCnchen&idsite=98&rec=1&r=306787&h=19&m=57&s=2&url=https%3A%2F%2Fwww.lmu.de%2Fde%2Findex.html&_id=&_idn=1&send_image=0&_refts=0&pv_id=yaTsmd&pf_net=0&pf_srv=106&pf_tfr=1&pf_dm1=1173&uadata=%7B%22formFactors%22%3A%5B%22Desktop%22%5D%2C%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Not-A.Brand%22%2C%22version%22%3A%2224.0.0.0%22%7D%2C%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22146.0.7680.164%22%7D%5D%2C%22mobile%22%3Atrue%2C%22model%22%3A%22moto%20g%20power%20(2022)%22%2C%22platform%22%3A%22Android%22%2C%22platformVersion%22%3A%2211.0%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=412x823 — 204 — 201 B — 109 ms — h2
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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 1389ms · 279KB · €15/mo
Unattributable
Other
Costly
Execution 402ms
Transfer 0 KB
Monthly Cost €4/mo
www.lmu.de
Other
Costly
Execution 344ms
Transfer 8 KB
Monthly Cost €4/mo
cms-cdn.lmu.de
Other
Costly
Execution 262ms
Transfer 60 KB
Unused 74%
Monthly Cost €3/mo
cms-cdn.lmu.de
Other
Optional
Execution 172ms
Transfer 38 KB
Unused 62%
Monthly Cost €2/mo
cms-cdn.lmu.de
Other
Optional
Execution 92ms
Transfer 58 KB
Unused 66%
Monthly Cost €1/mo
cms-cdn.lmu.de
Other
Optional
Execution 61ms
Transfer 31 KB
Unused 67%
Monthly Cost €1/mo
cms-cdn.lmu.de
Other
Optional
Execution 57ms
Transfer 84 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 402ms and costs ~€4/month
  • www.lmu.de adds 344ms and costs ~€4/month
  • cms-cdn.lmu.de adds 262ms 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

Unattributable takes 402ms 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.lmu.de takes 344ms 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

cms-cdn.lmu.de takes 262ms 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

74% of cms-cdn.lmu.de'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

62% of cms-cdn.lmu.de'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

66% of cms-cdn.lmu.de'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

67% of cms-cdn.lmu.de'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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