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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
88
GRADE
B
FIX
2
REVIEW
2
PASS
9
INFO
2

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

Mobile Desktop
63
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
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.

1.37 s

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

1.57 s

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

0 ms

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

1.000

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

1.95 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.

1.57 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
9 PASS 2 REVIEW 2 FIX
D
Third-Party Impact
Action
93% third-party, 0 ms blocking
FIX
93% third-party, 0 ms blocking
Warning::
Third-party code accounts for 93% of page weight (953.1 KiB of 1.0 MiB)
Info::
Third-party blocking time is low (0 ms)
93%
First-party Third-party
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-cache, no-store, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache, no-store, must-revalidate

DirectiveValueMeaning
no-cache—Cache but always revalidate first
no-store—Never cache this response
must-revalidate—Must recheck with server after expiry
B
Image Optimization
5 images, 0 KB saveable
REVIEW
5 images, 0 KB saveable
Warning::
https://i0.web.de/image/450/38549450,pd=5,h=1820,w... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
5 images 54 KB
0 oversized -0 KB
4 legacy format
1 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

B
JS Bundles
30 scripts, 125 KB unused
REVIEW
30 scripts, 125 KB unused
Warning::
https://js.ui-portal.de/netid/cmp/release/v1/webde...: 43 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://js.ui-portal.de/tamago/2.5.0/tamago.js?log...: 35 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://s.uicdn.com/fd/sentry/v7/bundle.tracing.mi...: 23 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://s.uicdn.com/fd/sentry/v7/bundle.tracing.mi...: 23 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 125 KB
125 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://js.ui-portal.de/netid/cmp/release/v1/webde/app.js81 KB43 KB (53%)✓3rd
https://js.ui-portal.de/tamago/2.5.0/tamago.js?loglevel=error&view=automatic&tm=teal&stage=live&exclude=ppp&userEventLoad=partitialPageLoadDone68 KB35 KB (52%)✓3rd
https://s.uicdn.com/fd/sentry/v7/bundle.tracing.min.js0 KB23 KB (72%)✓3rd
https://s.uicdn.com/fd/sentry/v7/bundle.tracing.min.js33 KB23 KB (72%)✓3rd
https://dl.web.de/uim/live/config_homepage.js9 KB—✓3rd
https://img.ui-portal.de/pos-cdn/tracklib/4.7.3/tracklib.min.js10 KB—✓3rd
https://js.ui-portal.de/homepage/res/live/1.99/webde/chunk-vendors.bundle.js101 KB—✓3rd
https://dl.web.de/account-avatar/account-avatar.esm.js1 KB—✓3rd
https://s.uicdn.com/t/prod/iq/mam/purple/daq.js0 KB—✓3rd
https://dl.web.de/tcf/live/v1/js/tcf-api.js0 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

A
Page Weight Budget
1.0 MB transferred, 63 requests
PASS
1.0 MB transferred, 63 requests
Info::
Page weighs 4.0 MB (1.0 MB transferred)
Warning::
JavaScript is 526 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 526 KB
Info::
63 HTTP requests
Info::
Estimated 0.21 g CO2 per page load
1.0 MB / 2.4 MB budget
1.0 MB transferred
63 requests
0.21 g CO2 per page load
JavaScript 526.1 KiB 51%
CSS 150.2 KiB 15%
Other 99.3 KiB 10%
HTML 97.6 KiB 9%
Fonts 80.9 KiB 8%
Images 54.3 KiB 5%
Other 14.9 KiB 1%
Other 5.9 KiB 1%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under 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

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+
JS Execution Cost
302ms total JS execution
PASS
302ms total JS execution
Info::
Unattributable: 121ms CPU time
Info::
https://s.uicdn.com/fd/sentry/v7/bundle.tracing.mi...: 114ms CPU time
Info::
https://web.de/consent-management/: 67ms CPU time
Warning::
Third-party scripts: 235ms (78% of total)

Main Thread Breakdown

Script Evaluation 49% Other 32% Style & Layout 9% Script Parsing & Compilation 7%
ScriptTotalScriptingParse/CompileParty
Unattributable121ms7ms0ms3rd
https://s.uicdn.com/fd/sentry/v7/bundle.tracing.min.js114ms79ms6ms3rd
https://web.de/consent-management/67ms2ms0ms1st
A+
Font Loading
5 fonts (81 KB)
PASS
5 fonts (81 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

81 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 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.4 s LCP 1.6 sdata:application/font-woff2;charset=utf-8;base64,d09GMgABAAAAADZ0ABAAAAAAd2QAADYTAAEAAAAAAAAAAAAAAA…font-woff2;charset=utf-... data:application/font-woff2;charset=utf-8;base64,d09GMgABAAAAADZ0ABAAAAAAd2QAADYTAAEAAAAAAAAAAAAAAA… — 13.6 KiB — 27 ms — font-display: swapdata:application/font-woff2;charset=utf-8;base64,d09GMgABAAAAADb8ABAAAAAAdzwAADacAAEAAAAAAAAAAAAAAA…font-woff2;charset=utf-... data:application/font-woff2;charset=utf-8;base64,d09GMgABAAAAADb8ABAAAAAAdzwAADacAAEAAAAAAAAAAAAAAA… — 13.7 KiB — 28 ms — font-display: swaphttps://img.ui-portal.de/ci/webde/global/fonts/web.de-sans/web.de-sans-light.woffweb.de-sans-light.woff https://img.ui-portal.de/ci/webde/global/fonts/web.de-sans/web.de-sans-light.woff — 17.8 KiB — 13 ms — font-display: swaphttps://img.ui-portal.de/ci/webde/global/fonts/web.de-sans/web.de-sans-medium.woffweb.de-sans-medium.woff https://img.ui-portal.de/ci/webde/global/fonts/web.de-sans/web.de-sans-medium.woff — 17.8 KiB — 10 ms — font-display: swaphttps://img.ui-portal.de/ci/webde/global/fonts/web.de-sans/web.de-sans-regular.woffweb.de-sans-regular.woff https://img.ui-portal.de/ci/webde/global/fonts/web.de-sans/web.de-sans-regular.woff — 17.9 KiB — 24 ms — font-display: swap
font-woff2;charset=utf-... woff2 swap
Size 14 KB
Load time 27 ms
Start 580 ms
Risk FOUT — text flashes from fallback to web font
font-woff2;charset=utf-... woff2 swap
Size 14 KB
Load time 28 ms
Start 581 ms
Risk FOUT — text flashes from fallback to web font
web.de-sans-light.woff woff swap
Size 18 KB
Load time 13 ms
Start 2.7 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
web.de-sans-medium.woff woff swap
Size 18 KB
Load time 10 ms
Start 2.7 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
web.de-sans-regular.woff woff swap
Size 18 KB
Load time 24 ms
Start 2.7 s
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)

Fixing the unchecked items could save ~16 KB and ~32 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
Page Weight Inventory
63 resources · 1.0 MB · 125 KB savings available
PASS
63 resources · 1.0 MB · 125 KB savings available
Warning::
Page weight 5 KB over 1MB target
Got: 1.0 MB Expected: ≤ 1 MB
Info::
~125 KB of savings available
Warning::
61 third-party resources (93% of weight)
63 resources · 1.0 MiB · 61 third-party 5.2 KiB over 1MB target
JavaScript 51% · 526.1 KiB
CSS 15% · 150.2 KiB
Other 10% · 105.2 KiB
Document 9% · 97.6 KiB
Font 8% · 80.9 KiB
Image 7% · 69.2 KiB

~124.7 KiB of savings available

Remove unused JavaScript: 124.7 KiB
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: IONOS SE

Network Waterfall
63 requests over 2874ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.4 s LCP 1.6 shttps://web.de// https://web.de/ — 200 — 74.2 KiB — 465 ms — h2https://js.ui-portal.de/homepage/res/live/1.99/webde/chunk-common.cssjs.ui-portal.de/homepage/res/live/1... https://js.ui-portal.de/homepage/res/live/1.99/webde/chunk-common.css — 200 — 69.6 KiB — 85 ms — h2https://dl.web.de/account-avatar/account-avatar.esm.jsdl.web.de/account-avatar/account-av... https://dl.web.de/account-avatar/account-avatar.esm.js — 200 — 1.4 KiB — 46 ms — h2https://s.uicdn.com/t/prod/iq/mam/purple/daq.jss.uicdn.com/t/prod/iq/mam/purple/da... https://s.uicdn.com/t/prod/iq/mam/purple/daq.js — 200 — 16.9 KiB — 62 ms — h2https://dl.web.de/tcf/live/v1/js/tcf-api.jsdl.web.de/tcf/live/v1/js/tcf-api.js https://dl.web.de/tcf/live/v1/js/tcf-api.js — 200 — 18.7 KiB — 45 ms — h2https://img.ui-portal.de/pos-cdn/tracklib/4.7.3/tracklib.min.jsimg.ui-portal.de/pos-cdn/tracklib/4... https://img.ui-portal.de/pos-cdn/tracklib/4.7.3/tracklib.min.js — 200 — 9.7 KiB — 34 ms — h2https://dl.web.de/uim/connector/live/v2/service.min.jsdl.web.de/uim/connector/live/v2/ser... https://dl.web.de/uim/connector/live/v2/service.min.js — 200 — 41.8 KiB — 47 ms — h2https://js.ui-portal.de/homepage/res/live/1.99/webde/page.bundle.jsjs.ui-portal.de/homepage/res/live/1... https://js.ui-portal.de/homepage/res/live/1.99/webde/page.bundle.js — 200 — 63.6 KiB — 61 ms — h2https://js.ui-portal.de/homepage/res/live/1.99/webde/chunk-vendors.bundle.jsjs.ui-portal.de/homepage/res/live/1... https://js.ui-portal.de/homepage/res/live/1.99/webde/chunk-vendors.bundle.js — 200 — 101.2 KiB — 57 ms — h2https://web.de/consent-management//consent-management/ https://web.de/consent-management/ — 200 — 1.8 KiB — 103 ms — h2https://dl.web.de/uim/live/config_homepage.jsdl.web.de/uim/live/config_homepage.... https://dl.web.de/uim/live/config_homepage.js — 200 — 8.9 KiB — 12 ms — h2https://js.ui-portal.de/consent-portal/1.0.0/consent.cssjs.ui-portal.de/consent-portal/1.0.... https://js.ui-portal.de/consent-portal/1.0.0/consent.css — 200 — 74.8 KiB — 21 ms — h2https://s.uicdn.com/t/prod/iq/mam/purple/daq.jss.uicdn.com/t/prod/iq/mam/purple/da... https://s.uicdn.com/t/prod/iq/mam/purple/daq.js — 200 — 0 B — 5 ms — h2https://dl.web.de/tcf/live/v1/js/tcf-api.jsdl.web.de/tcf/live/v1/js/tcf-api.js https://dl.web.de/tcf/live/v1/js/tcf-api.js — 200 — 0 B — 6 ms — h2https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client.jsdl.web.de/permission/live/portal/v1... https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client.js — 200 — 11.8 KiB — 10 ms — h2https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client-compat.jsdl.web.de/permission/live/portal/v1... https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client-compat.js — 200 — 1.7 KiB — 12 ms — h2https://js.ui-portal.de/consent-portal/1.0.0/consent.jsjs.ui-portal.de/consent-portal/1.0.... https://js.ui-portal.de/consent-portal/1.0.0/consent.js — 200 — 1.6 KiB — 16 ms — h2https://img.ui-portal.de/homepage/tcf/webde/spinner.gifimg.ui-portal.de/homepage/tcf/webde... https://img.ui-portal.de/homepage/tcf/webde/spinner.gif — 200 — 3.3 KiB — 18 ms — h2https://js.ui-portal.de/tamago/2.5.0/tamago.js?loglevel=error&view=automatic&tm=teal&stage=live&exclude=ppp&userEventLoad=partitialPageLoadDonejs.ui-portal.de/tamago/2.5.0/tamago... https://js.ui-portal.de/tamago/2.5.0/tamago.js?loglevel=error&view=automatic&tm=teal&stage=live&exclude=ppp&userEventLoad=partitialPageLoadDone — 200 — 68.0 KiB — 11 ms — h2https://s.uicdn.com/t/prod/iq/mam/purple/utag.81.js?utv=ut4.54.202603251028s.uicdn.com/t/prod/iq/mam/purple/ut... https://s.uicdn.com/t/prod/iq/mam/purple/utag.81.js?utv=ut4.54.202603251028 — 200 — 2.7 KiB — 20 ms — h2https://s.uicdn.com/t/prod/iq/mam/purple/utag.80.js?utv=ut4.54.202603251028s.uicdn.com/t/prod/iq/mam/purple/ut... https://s.uicdn.com/t/prod/iq/mam/purple/utag.80.js?utv=ut4.54.202603251028 — 200 — 2.5 KiB — 10 ms — h2data:application/font-woff2;charset=utf-8;base64,d09GMgABAAAAADZ0ABAAAAAAd2QAADYTAAEAAAAAAAAAAAAAAA…data:application/font-woff2;charset... data:application/font-woff2;charset=utf-8;base64,d09GMgABAAAAADZ0ABAAAAAAd2QAADYTAAEAAAAAAAAAAAAAAA… — 200 — 13.6 KiB — 27 ms — datadata:application/font-woff2;charset=utf-8;base64,d09GMgABAAAAADb8ABAAAAAAdzwAADacAAEAAAAAAAAAAAAAAA…data:application/font-woff2;charset... data:application/font-woff2;charset=utf-8;base64,d09GMgABAAAAADb8ABAAAAAAdzwAADacAAEAAAAAAAAAAAAAAA… — 200 — 13.7 KiB — 28 ms — datahttps://i0.web.de/image/450/38549450,pd=5,h=1820,w=1020/homepage.webpi0.web.de/image/450/38549450,pd=5,h... https://i0.web.de/image/450/38549450,pd=5,h=1820,w=1020/homepage.webp — 200 — 45.5 KiB — 22 ms — h2https://s.uicdn.com/t/prod/iq/mam/purple/utag.v.js?a=mam/purple/202603251028&cb=1776818550973s.uicdn.com/t/prod/iq/mam/purple/ut... https://s.uicdn.com/t/prod/iq/mam/purple/utag.v.js?a=mam/purple/202603251028&cb=1776818550973 — 200 — 139 B — 12 ms — h2https://tgw.web.de/eventstgw.web.de/events https://tgw.web.de/events — 200 — 0 B — 293 ms — h2https://dl.web.de/permission/live/portal/v1/ppp/core.htmldl.web.de/permission/live/portal/v1... https://dl.web.de/permission/live/portal/v1/ppp/core.html — 200 — 643 B — 10 ms — h2https://s.uicdn.com/fd/sentry/v7/bundle.tracing.min.jss.uicdn.com/fd/sentry/v7/bundle.tra... https://s.uicdn.com/fd/sentry/v7/bundle.tracing.min.js — 200 — 32.6 KiB — 24 ms — h2https://s.uicdn.com/tcf/live/v1/js/tcf-stub.jss.uicdn.com/tcf/live/v1/js/tcf-stub... https://s.uicdn.com/tcf/live/v1/js/tcf-stub.js — 200 — 1.4 KiB — 20 ms — h2https://img.ui-portal.de/pos-cdn/tracklib/4.3.0/tracklib.min.jsimg.ui-portal.de/pos-cdn/tracklib/4... https://img.ui-portal.de/pos-cdn/tracklib/4.3.0/tracklib.min.js — 200 — 9.9 KiB — 20 ms — h2
0 ms 1.0 s 2.0 s 3.0 s FCP 1.4 s LCP 1.6 shttps://web.de// https://web.de/ — 200 — 74.2 KiB — 465 ms — h2https://js.ui-portal.de/homepage/res/live/1.99/webde/chunk-common.cssjs.ui-portal.de/homepage/res/live/1... https://js.ui-portal.de/homepage/res/live/1.99/webde/chunk-common.css — 200 — 69.6 KiB — 85 ms — h2https://dl.web.de/account-avatar/account-avatar.esm.jsdl.web.de/account-avatar/account-av... https://dl.web.de/account-avatar/account-avatar.esm.js — 200 — 1.4 KiB — 46 ms — h2https://s.uicdn.com/t/prod/iq/mam/purple/daq.jss.uicdn.com/t/prod/iq/mam/purple/da... https://s.uicdn.com/t/prod/iq/mam/purple/daq.js — 200 — 16.9 KiB — 62 ms — h2https://dl.web.de/tcf/live/v1/js/tcf-api.jsdl.web.de/tcf/live/v1/js/tcf-api.js https://dl.web.de/tcf/live/v1/js/tcf-api.js — 200 — 18.7 KiB — 45 ms — h2https://img.ui-portal.de/pos-cdn/tracklib/4.7.3/tracklib.min.jsimg.ui-portal.de/pos-cdn/tracklib/4... https://img.ui-portal.de/pos-cdn/tracklib/4.7.3/tracklib.min.js — 200 — 9.7 KiB — 34 ms — h2https://dl.web.de/uim/connector/live/v2/service.min.jsdl.web.de/uim/connector/live/v2/ser... https://dl.web.de/uim/connector/live/v2/service.min.js — 200 — 41.8 KiB — 47 ms — h2https://js.ui-portal.de/homepage/res/live/1.99/webde/page.bundle.jsjs.ui-portal.de/homepage/res/live/1... https://js.ui-portal.de/homepage/res/live/1.99/webde/page.bundle.js — 200 — 63.6 KiB — 61 ms — h2https://js.ui-portal.de/homepage/res/live/1.99/webde/chunk-vendors.bundle.jsjs.ui-portal.de/homepage/res/live/1... https://js.ui-portal.de/homepage/res/live/1.99/webde/chunk-vendors.bundle.js — 200 — 101.2 KiB — 57 ms — h2https://web.de/consent-management//consent-management/ https://web.de/consent-management/ — 200 — 1.8 KiB — 103 ms — h2https://dl.web.de/uim/live/config_homepage.jsdl.web.de/uim/live/config_homepage.... https://dl.web.de/uim/live/config_homepage.js — 200 — 8.9 KiB — 12 ms — h2https://js.ui-portal.de/consent-portal/1.0.0/consent.cssjs.ui-portal.de/consent-portal/1.0.... https://js.ui-portal.de/consent-portal/1.0.0/consent.css — 200 — 74.8 KiB — 21 ms — h2https://s.uicdn.com/t/prod/iq/mam/purple/daq.jss.uicdn.com/t/prod/iq/mam/purple/da... https://s.uicdn.com/t/prod/iq/mam/purple/daq.js — 200 — 0 B — 5 ms — h2https://dl.web.de/tcf/live/v1/js/tcf-api.jsdl.web.de/tcf/live/v1/js/tcf-api.js https://dl.web.de/tcf/live/v1/js/tcf-api.js — 200 — 0 B — 6 ms — h2https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client.jsdl.web.de/permission/live/portal/v1... https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client.js — 200 — 11.8 KiB — 10 ms — h2https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client-compat.jsdl.web.de/permission/live/portal/v1... https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client-compat.js — 200 — 1.7 KiB — 12 ms — h2https://js.ui-portal.de/consent-portal/1.0.0/consent.jsjs.ui-portal.de/consent-portal/1.0.... https://js.ui-portal.de/consent-portal/1.0.0/consent.js — 200 — 1.6 KiB — 16 ms — 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https://js.ui-portal.de/netid/cmp/config/webde/config.json?p=91179125788 — 200 — 950 B — 10 ms — h2https://permission-proxy.web.de/netid-user-status?q.tapp_id.eq=ef48100e-ab6f-41e8-9dbb-2c3c35b9c7f9&q.identifier.in=ETPID,TPIDpermission-proxy.web.de/netid-user-... https://permission-proxy.web.de/netid-user-status?q.tapp_id.eq=ef48100e-ab6f-41e8-9dbb-2c3c35b9c7f9&q.identifier.in=ETPID,TPID — 400 — 440 B — 304 ms — h2https://einwilligungsspeicher.netid.de/netid-user-status?q.tapp_id.eq=ef48100e-ab6f-41e8-9dbb-2c3c35b9c7f9&q.identifier.in=TPID,ETPIDeinwilligungsspeicher.netid.de/neti... https://einwilligungsspeicher.netid.de/netid-user-status?q.tapp_id.eq=ef48100e-ab6f-41e8-9dbb-2c3c35b9c7f9&q.identifier.in=TPID,ETPID — 400 — 440 B — 330 ms — h2https://js.ui-portal.de/netid/consensu/v3/latest/vendor-list.jsonjs.ui-portal.de/netid/consensu/v3/l... https://js.ui-portal.de/netid/consensu/v3/latest/vendor-list.json — 200 — 89.1 KiB — 12 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
78% of JavaScript execution is third-party
First-party Third-party 235ms · 0KB · €3/mo
Unattributable
Other
Optional
Execution 121ms
Transfer 0 KB
Monthly Cost €1/mo
s.uicdn.com
Other
Optional
Execution 114ms
Transfer 0 KB
Unused 72%
Monthly Cost €1/mo

78% 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

72% of s.uicdn.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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