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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
74
GRADE
C
FIX
5
REVIEW
3
PASS
7
INFO
2

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

Mobile Desktop
30
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.
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.

4.12 s

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

8.05 s

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

566 ms

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

0.485

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

4.50 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.

8.45 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 3 REVIEW 5 FIX
F
Page Weight Budget
Action
3.3 MB transferred, 51 requests
FIX
3.3 MB transferred, 51 requests
Warning::
Page weighs 4.8 MB (3.3 MB transferred)
Warning::
Images are 2.2 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.2 MB
Info::
Fonts are 435 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 435 KB
Info::
CSS is 230 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 230 KB
Info::
51 HTTP requests
Info::
Estimated 0.68 g CO2 per page load
3.3 MB / 2.4 MB budget
3.3 MB transferred
51 requests
0.68 g CO2 per page load
Images 2.2 MiB 68%
Fonts 434.7 KiB 13%
JavaScript 245.2 KiB 7%
CSS 230.3 KiB 7%
Other 135.6 KiB 4%
HTML 33.6 KiB 1%
Other 1.8 KiB 0%
Other 774 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

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

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 (3.3 MiB of 3.3 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
3602ms total JS execution
FIX
3602ms total JS execution
Warning::
https://www.telekom.com/: 1234ms CPU time
Warning::
https://www.telekom.com/resource/themes/com/js/com...: 1136ms CPU time
Warning::
https://tags-eu.tiqcdn.com/utag/telekom/com/prod/u...: 513ms CPU time
Warning::
Unattributable: 317ms CPU time
Warning::
https://www.telekom.com/resource/themes/com/js/com...: 259ms CPU time
Warning::
Third-party scripts: 3602ms (100% of total)

Main Thread Breakdown

Other 30% Style & Layout 28% Script Evaluation 27% Rendering 9% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.telekom.com/1234ms8ms8ms3rd
https://www.telekom.com/resource/themes/com/js/com-1021766-18.js1136ms682ms44ms3rd
https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.js513ms124ms26ms3rd
Unattributable317ms5ms0ms3rd
https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js259ms101ms12ms3rd
https://www.telekom.com/resource/themes/com/css/com-1021854-20.css76ms0ms0ms3rd
https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.15.js?utv=ut4.52.20260323094365ms53ms2ms3rd
D
Page Weight Inventory
Action
51 resources · 3.3 MB · 114 KB savings available
FIX
51 resources · 3.3 MB · 114 KB savings available
Warning::
Page weight 2.3 MB over 1MB target
Got: 3.3 MB Expected: ≤ 1 MB
Info::
~114 KB of savings available
Warning::
50 third-party resources (100% of weight)
Info::
2 resources over 200KB
51 resources · 3.3 MiB · 50 third-party 2.3 MiB over 1MB target
Image 68% · 2.2 MiB
Font 17% · 556.6 KiB
JavaScript 7% · 245.2 KiB
CSS 7% · 230.3 KiB
Document 1% · 34.1 KiB
Other 0% · 1.1 KiB

~113.9 KiB of savings available

Remove unused JavaScript: 113.9 KiB
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-store, no-cache, must-revalidate, max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store, no-cache, must-revalidate, max-age=0

DirectiveValueMeaning
no-store—Never cache this response
no-cache—Cache but always revalidate first
must-revalidate—Must recheck with server after expiry
max-age0Cache for 0 seconds
C
Image Optimization
Action
24 images, 0 KB saveable
REVIEW
24 images, 0 KB saveable
Warning::
https://www.telekom.com/resource/image/1066812/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/1103346/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/1102938/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/1103016/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/1103908/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/1102892/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/1103002/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/1096698/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/639656/land... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/417548/land... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/1103678/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.telekom.com/resource/image/1102904/lan... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
24 images 2.2 MB
0 oversized -0 KB
23 legacy format
12 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

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

B
JS Bundles
7 scripts, 114 KB unused
REVIEW
7 scripts, 114 KB unused
Warning::
https://www.telekom.com/resource/themes/com/js/com...: 90 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://tags-eu.tiqcdn.com/utag/telekom/com/prod/u...: 24 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 114 KB
114 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.telekom.com/resource/themes/com/js/com-1021766-18.js134 KB90 KB (68%)✓3rd
https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.js61 KB24 KB (40%)✓3rd
https://f1-eu.readspeaker.com/script/4779/ReadSpeaker.js?pids=embhl&jit=14 KB—✓3rd
https://www.telekom.com/resource/themes/com/js/chunkPathById-1021764-40.js2 KB—✓3rd
https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js37 KB—✓3rd
https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.15.js?utv=ut4.52.2026032309438 KB—✓3rd
https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.v.js?a=telekom/com/202603300956&cb=17763595244340 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

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
11 fonts (557 KB)
PASS
11 fonts (557 KB)
Info::
11 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

11

557 KB total

Render-blocking

0

of 11

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 5.0 s 6.0 s 7.0 s 8.0 s FCP 4.1 s LCP 8.0 shttps://www.telekom.com/resource/crblob/1021682/ad396e353ff1ea0eccc2c156e663238e/teleneo-thin-woff-data.woffteleneo-thin-woff-data.... https://www.telekom.com/resource/crblob/1021682/ad396e353ff1ea0eccc2c156e663238e/teleneo-thin-woff-data.woff — 54.6 KiB — 75 ms — font-display: swaphttps://www.telekom.com/resource/crblob/1021674/cef4875f104fc282b3b458b2dcb80be9/teleneo-medium-woff-data.woffteleneo-medium-woff-dat... https://www.telekom.com/resource/crblob/1021674/cef4875f104fc282b3b458b2dcb80be9/teleneo-medium-woff-data.woff — 58.8 KiB — 146 ms — font-display: swaphttps://www.telekom.com/resource/crblob/1021666/4700ef9398ecb245df8891cadae919ab/teleneo-bold-woff-data.woffteleneo-bold-woff-data.... https://www.telekom.com/resource/crblob/1021666/4700ef9398ecb245df8891cadae919ab/teleneo-bold-woff-data.woff — 58.9 KiB — 214 ms — font-display: swaphttps://www.telekom.com/resource/crblob/1021670/9479a1f7ee32d142c54bb28c800b21f5/teleneo-extrabold-woff-data.woffteleneo-extrabold-woff-... https://www.telekom.com/resource/crblob/1021670/9479a1f7ee32d142c54bb28c800b21f5/teleneo-extrabold-woff-data.woff — 58.4 KiB — 180 ms — font-display: swaphttps://www.telekom.com/resource/crblob/1021680/2fc1bb68d9930f87ea79e48f87238a60/teleneo-regularitalic-woff-data.woffteleneo-regularitalic-w... https://www.telekom.com/resource/crblob/1021680/2fc1bb68d9930f87ea79e48f87238a60/teleneo-regularitalic-woff-data.woff — 60.7 KiB — 110 ms — font-display: swaphttps://www.telekom.com/resource/crblob/1021676/b467d6cdb9e76abd49532ecebfbe940b/teleneo-mediumitalic-woff-data.woffteleneo-mediumitalic-wo... https://www.telekom.com/resource/crblob/1021676/b467d6cdb9e76abd49532ecebfbe940b/teleneo-mediumitalic-woff-data.woff — 61.2 KiB — 107 ms — font-display: swapdata:application/x-font-woff;charset=utf-8;base64,d09GRgABAAAAAFdwAAsAAAAAVyQAAQAAAAAAAAAAAAAAAAAAA…x-font-woff;charset=utf... data:application/x-font-woff;charset=utf-8;base64,d09GRgABAAAAAFdwAAsAAAAAVyQAAQAAAAAAAAAAAAAAAAAAA… — 21.9 KiB — 53 ms — font-display: swapdata:application/x-font-woff;charset=utf-8;base64,d09GRgABAAAAAOYMABIAAAAB55gAAAAAAAAAAAAAAAAAAAAAA…x-font-woff;charset=utf... data:application/x-font-woff;charset=utf-8;base64,d09GRgABAAAAAOYMABIAAAAB55gAAAAAAAAAAAAAAAAAAAAAA… — 57.5 KiB — 54 ms — font-display: swapdata:application/x-font-woff;charset=utf-8;base64,d09GRgABAAAAAE/cAAsAAAAAT5AAAQAAAAAAAAAAAAAAAAAAA…cAAsAAAAAT5AAAQAAAAAAAA... data:application/x-font-woff;charset=utf-8;base64,d09GRgABAAAAAE/cAAsAAAAAT5AAAQAAAAAAAAAAAAAAAAAAA… — 20.0 KiB — 55 ms — font-display: swaphttps://ebs10.telekom.de/opt-in/font/teleneo/teleneo-bold.woff2teleneo-bold.woff2 https://ebs10.telekom.de/opt-in/font/teleneo/teleneo-bold.woff2 — 52.5 KiB — 388 ms — font-display: swaphttps://ebs10.telekom.de/opt-in/font/teleneo/teleneo-regular.woff2teleneo-regular.woff2 https://ebs10.telekom.de/opt-in/font/teleneo/teleneo-regular.woff2 — 52.1 KiB — 344 ms — font-display: swap
teleneo-thin-woff-data.... woff swap
Size 55 KB
Load time 75 ms
Start 566 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
teleneo-medium-woff-dat... woff swap
Size 59 KB
Load time 146 ms
Start 567 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
teleneo-bold-woff-data.... woff swap
Size 59 KB
Load time 214 ms
Start 567 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
teleneo-extrabold-woff-... woff swap
Size 58 KB
Load time 180 ms
Start 567 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
teleneo-regularitalic-w... woff swap
Size 61 KB
Load time 110 ms
Start 839 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
teleneo-mediumitalic-wo... woff swap
Size 61 KB
Load time 107 ms
Start 839 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
x-font-woff;charset=utf... woff swap
Size 22 KB
Load time 53 ms
Start 869 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
x-font-woff;charset=utf... woff swap
Size 58 KB
Load time 54 ms
Start 870 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
cAAsAAAAAT5AAAQAAAAAAAA... woff swap
Size 20 KB
Load time 55 ms
Start 871 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
teleneo-bold.woff2 woff2 swap
Size 53 KB
Load time 388 ms
Start 1.3 s
Risk FOUT — text flashes from fallback to web font
teleneo-regular.woff2 woff2 swap
Size 52 KB
Load time 344 ms
Start 1.3 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)

Fixing the unchecked items could save ~136 KB and ~272 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
6 hints, 0 missing preconnects
PASS
6 hints, 0 missing preconnects
Info::
Page uses 6 resource hint(s)

Current Resource Hints

preconnect
—
preload
4
dns-prefetch
—
prefetch
2

6 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
51 requests over 2253ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 4.1 s LCP 8.0 shttps://telekom.net// https://telekom.net/ — 301 — 546 B — 128 ms — http/1.1https://www.telekom.com/www.telekom.com/ https://www.telekom.com/ — 200 — 33.6 KiB — 423 ms — h2https://www.telekom.com/resource/crblob/1021682/ad396e353ff1ea0eccc2c156e663238e/teleneo-thin-woff-data.woffwww.telekom.com/resource/crblob/102... https://www.telekom.com/resource/crblob/1021682/ad396e353ff1ea0eccc2c156e663238e/teleneo-thin-woff-data.woff — 200 — 54.6 KiB — 75 ms — h2https://www.telekom.com/resource/crblob/1021674/cef4875f104fc282b3b458b2dcb80be9/teleneo-medium-woff-data.woffwww.telekom.com/resource/crblob/102... https://www.telekom.com/resource/crblob/1021674/cef4875f104fc282b3b458b2dcb80be9/teleneo-medium-woff-data.woff — 200 — 58.8 KiB — 146 ms — h2https://www.telekom.com/resource/crblob/1021666/4700ef9398ecb245df8891cadae919ab/teleneo-bold-woff-data.woffwww.telekom.com/resource/crblob/102... https://www.telekom.com/resource/crblob/1021666/4700ef9398ecb245df8891cadae919ab/teleneo-bold-woff-data.woff — 200 — 58.9 KiB — 214 ms — h2https://www.telekom.com/resource/crblob/1021670/9479a1f7ee32d142c54bb28c800b21f5/teleneo-extrabold-woff-data.woffwww.telekom.com/resource/crblob/102... https://www.telekom.com/resource/crblob/1021670/9479a1f7ee32d142c54bb28c800b21f5/teleneo-extrabold-woff-data.woff — 200 — 58.4 KiB — 180 ms — h2https://www.telekom.com/resource/themes/com/css/com-1021854-20.csswww.telekom.com/resource/themes/com... https://www.telekom.com/resource/themes/com/css/com-1021854-20.css — 200 — 229.3 KiB — 249 ms — h2https://f1-eu.readspeaker.com/script/4779/ReadSpeaker.js?pids=embhl&jit=1f1-eu.readspeaker.com/script/4779/R... https://f1-eu.readspeaker.com/script/4779/ReadSpeaker.js?pids=embhl&jit=1 — 200 — 4.1 KiB — 130 ms — h2https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.jstags-eu.tiqcdn.com/utag/telekom/com... 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110 ms — h2https://www.telekom.com/resource/crblob/1021676/b467d6cdb9e76abd49532ecebfbe940b/teleneo-mediumitalic-woff-data.woffwww.telekom.com/resource/crblob/102... https://www.telekom.com/resource/crblob/1021676/b467d6cdb9e76abd49532ecebfbe940b/teleneo-mediumitalic-woff-data.woff — 200 — 61.2 KiB — 107 ms — h2https://f1-eu.readspeaker.com/script/4779/ReadSpeaker.Styles-Button.css?v=2.5.16.6672f1-eu.readspeaker.com/script/4779/R... https://f1-eu.readspeaker.com/script/4779/ReadSpeaker.Styles-Button.css?v=2.5.16.6672 — 200 — 958 B — 31 ms — h2data:application/x-font-woff;charset=utf-8;base64,d09GRgABAAAAAFdwAAsAAAAAVyQAAQAAAAAAAAAAAAAAAAAAA…data:application/x-font-woff;charse... data:application/x-font-woff;charset=utf-8;base64,d09GRgABAAAAAFdwAAsAAAAAVyQAAQAAAAAAAAAAAAAAAAAAA… — 200 — 21.9 KiB — 53 ms — datadata:application/x-font-woff;charset=utf-8;base64,d09GRgABAAAAAOYMABIAAAAB55gAAAAAAAAAAAAAAAAAAAAAA…data:application/x-font-woff;charse... 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h2https://www.telekom.com/resource/image/1102904/landscape_ratio4x3/768/576/3454086fa6c6342941766030a295a76f/82983133C6535F64C69143AB42340A8C/bi-260302-mwc-overall-en.jpgwww.telekom.com/resource/image/1102... https://www.telekom.com/resource/image/1102904/landscape_ratio4x3/768/576/3454086fa6c6342941766030a295a76f/82983133C6535F64C69143AB42340A8C/bi-260302-mwc-overall-en.jpg — 200 — 99.5 KiB — 366 ms — h2https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.15.js?utv=ut4.52.202603230943tags-eu.tiqcdn.com/utag/telekom/com... https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.15.js?utv=ut4.52.202603230943 — 200 — 7.7 KiB — 10 ms — h2https://ebs10.telekom.de/opt-in/icon/utiq.svgebs10.telekom.de/opt-in/icon/utiq.s... https://ebs10.telekom.de/opt-in/icon/utiq.svg — 200 — 1.2 KiB — 176 ms — http/1.1https://ebs10.telekom.de/opt-in/font/teleneo/teleneo-bold.woff2ebs10.telekom.de/opt-in/font/telene... https://ebs10.telekom.de/opt-in/font/teleneo/teleneo-bold.woff2 — 200 — 52.5 KiB — 388 ms — http/1.1https://ebs10.telekom.de/opt-in/font/teleneo/teleneo-regular.woff2ebs10.telekom.de/opt-in/font/telene... https://ebs10.telekom.de/opt-in/font/teleneo/teleneo-regular.woff2 — 200 — 52.1 KiB — 344 ms — http/1.1https://hub.telekom.com/telekom/com/2/i.gifhub.telekom.com/telekom/com/2/i.gif https://hub.telekom.com/telekom/com/2/i.gif — 200 — 775 B — 166 ms — h2https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.v.js?a=telekom/com/202603300956&cb=1776359524434tags-eu.tiqcdn.com/utag/telekom/com... https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.v.js?a=telekom/com/202603300956&cb=1776359524434 — 200 — 217 B — 20 ms — h2https://www.telekom.com/dynamic/service/guid/64www.telekom.com/dynamic/service/gui... https://www.telekom.com/dynamic/service/guid/64 — 204 — 1.1 KiB — 48 ms — h2https://www.telekom.com/resource/crblob/1021450/05272d789be738a790edff915a075ec4/favicon-svg-data.svgwww.telekom.com/resource/crblob/102... https://www.telekom.com/resource/crblob/1021450/05272d789be738a790edff915a075ec4/favicon-svg-data.svg — 200 — 3.0 KiB — 41 ms — h2https://www.telekom.com/resource/crblob/1093970/f58449c3f626c8c3337949bfdfab0fab/favicon-ico-data.icowww.telekom.com/resource/crblob/109... https://www.telekom.com/resource/crblob/1093970/f58449c3f626c8c3337949bfdfab0fab/favicon-ico-data.ico — 200 — 10.2 KiB — 41 ms — h2https://www.telekom.com/resource/image/1103346/portrait_ratio1x1/768/768/bc4085145a90a520baf0ec53f98ae1dd/DEADF03F6A3D80A6992FE4181D64D95A/bi-260311-markenwert-1-en.jpgwww.telekom.com/resource/image/1103... https://www.telekom.com/resource/image/1103346/portrait_ratio1x1/768/768/bc4085145a90a520baf0ec53f98ae1dd/DEADF03F6A3D80A6992FE4181D64D95A/bi-260311-markenwert-1-en.jpg — 200 — 110.9 KiB — 43 ms — h2https://www.telekom.com/resource/image/1055158/portrait_ratio1x1/768/768/649789a0700fb7ac134c4317719df59d/130BC2F25BBD99DD4DE4FE1E7667509A/bi-231207-ki-bei-der-telekom-en.jpgwww.telekom.com/resource/image/1055... https://www.telekom.com/resource/image/1055158/portrait_ratio1x1/768/768/649789a0700fb7ac134c4317719df59d/130BC2F25BBD99DD4DE4FE1E7667509A/bi-231207-ki-bei-der-telekom-en.jpg — 200 — 47.3 KiB — 41 ms — h2https://www.telekom.com/resource/image/1096698/landscape_ratio4x3/768/576/fd07c1796f4a926480baaefc0009bfff/2DB4FA4B76FF8486DA5817A0E776E1C8/bi-net-zero.jpgwww.telekom.com/resource/image/1096... https://www.telekom.com/resource/image/1096698/landscape_ratio4x3/768/576/fd07c1796f4a926480baaefc0009bfff/2DB4FA4B76FF8486DA5817A0E776E1C8/bi-net-zero.jpg — 200 — 41.3 KiB — 40 ms — h2https://www.telekom.com/resource/image/639656/landscape_ratio4x3/768/576/ed95581b567bfc4659621b0486c37592/BC5E9A15FA32CF7C75B721B0E424D8D3/bi-211028-specials-teaserbild-en.jpgwww.telekom.com/resource/image/6396... https://www.telekom.com/resource/image/639656/landscape_ratio4x3/768/576/ed95581b567bfc4659621b0486c37592/BC5E9A15FA32CF7C75B721B0E424D8D3/bi-211028-specials-teaserbild-en.jpg — 200 — 86.5 KiB — 45 ms — h2https://hub.telekom.com/telekom/com/2/i.gifhub.telekom.com/telekom/com/2/i.gif https://hub.telekom.com/telekom/com/2/i.gif — 200 — 774 B — 35 ms — h2
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 3602ms · 502KB · €39/mo
www.telekom.com
Other
Costly
Execution 1234ms
Transfer 34 KB
Monthly Cost €13/mo
www.telekom.com
Other
Costly
Execution 1136ms
Transfer 134 KB
Unused 68%
Monthly Cost €12/mo
tags-eu.tiqcdn.com
Other
Costly
Execution 513ms
Transfer 61 KB
Unused 40%
Monthly Cost €6/mo
Unattributable
Other
Costly
Execution 317ms
Transfer 0 KB
Monthly Cost €3/mo
www.telekom.com
Other
Costly
Execution 259ms
Transfer 37 KB
Monthly Cost €3/mo
www.telekom.com
Other
Optional
Execution 76ms
Transfer 229 KB
Monthly Cost €1/mo
tags-eu.tiqcdn.com
Other
Optional
Execution 65ms
Transfer 8 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.telekom.com adds 1234ms and costs ~€13/month
  • www.telekom.com adds 1136ms and costs ~€12/month
  • tags-eu.tiqcdn.com adds 513ms and costs ~€6/month
  • Unattributable adds 317ms and costs ~€3/month
  • www.telekom.com adds 259ms 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.telekom.com takes 1234ms 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.telekom.com takes 1136ms 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

68% of www.telekom.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

tags-eu.tiqcdn.com takes 513ms 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 317ms 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.telekom.com takes 259ms 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

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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