https://telekom.net
Lighthouse Mobile
· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.SCORE
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Detailed Report
Audit breakdown by category with detailed findings.
30
Performance
Insights
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Why this matters
Performance issues directly impact user engagement and conversion rates.
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Why this matters
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.js | 300.0 s | 61.0 KiB |
| ebs10.telekom.de/opt-in/font/teleneo/teleneo-bold.woff2 | 0.0 ms | 52.5 KiB |
| ebs10.telekom.de/opt-in/font/teleneo/teleneo-regular.woff2 | 0.0 ms | 52.1 KiB |
| f1-eu.readspeaker.com/script/4779/ReadSpeaker.js?pids=embhl&jit=1 | 0.0 ms | 4.1 KiB |
| ebs10.telekom.de/opt-in/icon/utiq.svg | 0.0 ms | 1.2 KiB |
| f1-eu.readspeaker.com/script/4779/ReadSpeaker.Styles-Button.css?v=2.5.16.6672 | 86400.0 s | 958 B |
Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.
Why this matters
Performance issues directly impact user engagement and conversion rates.
headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.48471699999999984] map[node:map[boundingRect:map[bottom:823 height:658 left:0 right:412 top:165 width:412] lhId:page-3-DIALOG nodeLabel:Cookies and similar technologies
We use cookies and similar technologies on ou… path:1,HTML,1,BODY,15,DIV,1,DIV,1,DIALOG selector:body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent snippet:<dialog class="cl-main ods-dialog" id="promptLayerContent" aria-modal="true" role="alertdialog" aria-labelledby="cl-header" autofocus="" tabindex="-1"> type:node] score:0.104599 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1632 height:291 left:12 right:400 top:1341 width:388] lhId:page-16-IMG nodeLabel:Headquarters Deutsche Telekom path:1,HTML,1,BODY,1,MAIN,2,DIV,1,DIV,1,ARTICLE,1,DIV,0,DIV,1,DIV,0,FIGURE,0,DIV,0,IMG selector:div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image snippet:<img class="cm-image rs_skip cm-image--responsive" data-cm-responsive-image="[{"name":"landscape_ratio4x3","ratioWidth":4,"ratioHeight":3,"linksForWidt…" data-cm-retina-image="true" alt="Headquarters Deutsche Telekom " data-ratio="landscape_ratio4x3" src="/resource/image/1066812/landscape_ratio4x3/768/576/d0f5d7a135d48a80ec9f47b…"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:1329 height:285 left:0 right:412 top:1044 width:412] lhId:page-2-ARTICLE nodeLabel:Share
Deutsche Telekom AG
04-16-2026 | 05:37 PM CET
29.11 €
+0.56 €
+1.96 … path:1,HTML,1,BODY,1,MAIN,2,DIV,1,DIV,0,ARTICLE selector:main.site-main > div.id07 > div.container-adaptive > article.module snippet:<article class="module id07 special3 stock" data-showcopy="auto"> type:node] score:0.08384] map[node:map[boundingRect:map[bottom:823 height:658 left:0 right:412 top:165 width:412] lhId:page-3-DIALOG nodeLabel:Cookies and similar technologies
We use cookies and similar technologies on ou… path:1,HTML,1,BODY,15,DIV,1,DIV,1,DIALOG selector:body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent snippet:<dialog class="cl-main ods-dialog" id="promptLayerContent" aria-modal="true" role="alertdialog" aria-labelledby="cl-header" autofocus="" tabindex="-1"> type:node] score:0.01122 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:7348 height:291 left:12 right:400 top:7057 width:388] lhId:page-18-IMG nodeLabel:Two people speaking to each other on the smartphone. path:1,HTML,1,BODY,1,MAIN,3,DIV,1,DIV,0,DIV,2,DIV,0,DIV,15,ARTICLE,1,DIV,0,DIV,1,DIV,0,FIGURE,0,DIV,0,IMG selector:div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image snippet:<img class="cm-image rs_skip cm-image--responsive" data-cm-responsive-image="[{"name":"landscape_ratio4x3","ratioWidth":4,"ratioHeight":3,"linksForWidt…" data-cm-retina-image="true" alt="Two people speaking to each other on the smartphone." data-ratio="landscape_ratio4x3" src="/resource/image/1102892/landscape_ratio4x3/768/576/fb938b8b62d722ee53dec71…"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:823 height:658 left:0 right:412 top:165 width:412] lhId:page-3-DIALOG nodeLabel:Cookies and similar technologies
We use cookies and similar technologies on ou… path:1,HTML,1,BODY,15,DIV,1,DIV,1,DIALOG selector:body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent snippet:<dialog class="cl-main ods-dialog" id="promptLayerContent" aria-modal="true" role="alertdialog" aria-labelledby="cl-header" autofocus="" tabindex="-1"> type:node] score:0.011205 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:7348 height:291 left:12 right:400 top:7057 width:388] lhId:page-18-IMG nodeLabel:Two people speaking to each other on the smartphone. path:1,HTML,1,BODY,1,MAIN,3,DIV,1,DIV,0,DIV,2,DIV,0,DIV,15,ARTICLE,1,DIV,0,DIV,1,DIV,0,FIGURE,0,DIV,0,IMG selector:div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image snippet:<img class="cm-image rs_skip cm-image--responsive" data-cm-responsive-image="[{"name":"landscape_ratio4x3","ratioWidth":4,"ratioHeight":3,"linksForWidt…" data-cm-retina-image="true" alt="Two people speaking to each other on the smartphone." data-ratio="landscape_ratio4x3" src="/resource/image/1102892/landscape_ratio4x3/768/576/fb938b8b62d722ee53dec71…"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:823 height:658 left:0 right:412 top:165 width:412] lhId:page-3-DIALOG nodeLabel:Cookies and similar technologies
We use cookies and similar technologies on ou… path:1,HTML,1,BODY,15,DIV,1,DIV,1,DIALOG selector:body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent snippet:<dialog class="cl-main ods-dialog" id="promptLayerContent" aria-modal="true" role="alertdialog" aria-labelledby="cl-header" autofocus="" tabindex="-1"> type:node] score:0.011191 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:7348 height:291 left:12 right:400 top:7057 width:388] lhId:page-18-IMG nodeLabel:Two people speaking to each other on the smartphone. path:1,HTML,1,BODY,1,MAIN,3,DIV,1,DIV,0,DIV,2,DIV,0,DIV,15,ARTICLE,1,DIV,0,DIV,1,DIV,0,FIGURE,0,DIV,0,IMG selector:div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image snippet:<img class="cm-image rs_skip cm-image--responsive" data-cm-responsive-image="[{"name":"landscape_ratio4x3","ratioWidth":4,"ratioHeight":3,"linksForWidt…" data-cm-retina-image="true" alt="Two people speaking to each other on the smartphone." data-ratio="landscape_ratio4x3" src="/resource/image/1102892/landscape_ratio4x3/768/576/fb938b8b62d722ee53dec71…"> type:node]]] type:subitems]]]
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
Why this matters
Performance issues directly impact user engagement and conversion rates.
A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.
Why this matters
Performance issues directly impact user engagement and conversion rates.
headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:39.194 source:map[column:246 line:162 type:source-location url:https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.js urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:50.974 source:map[column:326 line:95 type:source-location url:https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.js urlProvider:network]] map[reflowTime:0.504 source:map[type:text value:[unattributed]]] map[reflowTime:9.697 source:map[column:49406 line:18 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:3.082 source:map[column:50124 line:18 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:0.262 source:map[column:50182 line:18 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:0.232 source:map[column:50246 line:18 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:0.159 source:map[column:49428 line:18 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:0.483 source:map[column:51182 line:18 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:2.472 source:map[column:10998 line:5 type:source-location url:https://www.telekom.com/resource/themes/com/js/com-1021766-18.js urlProvider:network]] map[reflowTime:1.244 source:map[column:921 line:5 type:source-location url:https://www.telekom.com/resource/themes/com/js/com-1021766-18.js urlProvider:network]] map[reflowTime:7.612 source:map[column:1078 line:5 type:source-location url:https://www.telekom.com/resource/themes/com/js/com-1021766-18.js urlProvider:network]] map[reflowTime:11.649 source:map[column:1240 line:5 type:source-location url:https://www.telekom.com/resource/themes/com/js/com-1021766-18.js urlProvider:network]] map[reflowTime:5.162 source:map[column:70136 line:18 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:4.706 source:map[column:79087 line:18 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:4.86 source:map[column:4044 line:0 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:20.569 source:map[column:129833 line:111 type:source-location url:https://www.telekom.com/resource/themes/com/js/com-1021766-18.js urlProvider:network]] map[reflowTime:1.346 source:map[column:85274 line:18 type:source-location url:https://www.telekom.com/resource/themes/com/js/commons-1021768-12.js urlProvider:network]] map[reflowTime:39.194 source:map[column:94 line:266 type:source-location url:https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.js urlProvider:network]] map[reflowTime:0.635 source:map[column:419 line:65 type:source-location url:https://tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.15.js?utv=ut4.52.202603230943 urlProvider:network]]]
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Why this matters
Performance issues directly impact user engagement and conversion rates.
lhId: page-0-IMG
nodeLabel: Deutsche Telekom Board of Management
path: 1,HTML,1,BODY,1,MAIN,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,2,DIV,0,DIV,0,ARTICLE,0,DIV,0,FIGURE,0,DIV,0,IMG
selector: div.module-wrapper > figure.media > div.cm-image-wrapper > img.cm-image
snippet: <img class="cm-image rs_skip cm-image--responsive" data-cm-responsive-image="[{"name":"portrait_ratio1x1","ratioWidth":1,"ratioHeight":1,"linksForWidth…" data-cm-retina-image="true" alt="Deutsche Telekom Board of Management" data-ratio="orientationParent" src="/resource/image/1103796/portrait_ratio1x1/768/768/ca3fb6e37b805ba5a912e0a0…">
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Why this matters
Performance issues directly impact user engagement and conversion rates.
description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| www.telekom.com/resource/themes/com/css/com-1021854-20.css | 229.3 KiB | 2.0 s |
| f1-eu.readspeaker.com/script/4779/ReadSpeaker.js?pids=embhl&jit=1 | 4.1 KiB | 835 ms |
| tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.js | 61.0 KiB | 1.4 s |
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Why this matters
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Two people speaking to each other on the smartphone. div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1102892/landscape_ratio4x3/768/576/fb938b... | 1.1 MiB | 1.0 MiB |
MWC stall Telekom 2026 div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1102904/landscape_ratio4x3/768/576/345408... | 98.6 KiB | 42.4 KiB |
Symbol picture international cooperation div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/417548/landscape_ratio4x3/768/576/95972b9... | 89.5 KiB | 33.2 KiB |
Keyvisual trust div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103346/landscape_ratio4x3/768/576/fafc6a... | 87.7 KiB | 31.4 KiB |
Headquarters Deutsche Telekom div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1066812/landscape_ratio4x3/768/576/d0f5d7... | 84.5 KiB | 28.3 KiB |
Keyvisual trust div.module-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103346/portrait_ratio1x1/768/768/bc40851... | 110.0 KiB | 25.2 KiB |
Nighttime construction scene: A Starlink antenna receives a magenta signal from… div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103908/landscape_ratio4x3/768/576/ca45a9... | 80.6 KiB | 24.4 KiB |
Deutsche Telekom booth MWC 2026. div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103152/portrait_ratio3x4/320/427/2c8937c... | 30.0 KiB | 17.2 KiB |
Paralympic winter athletes in action div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103638/portrait_ratio3x4/320/427/4139c92... | 25.8 KiB | 13.0 KiB |
Abdu Mudesir, Board member for Product and Technology div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103016/landscape_ratio4x3/768/576/5fe6bc... | 56.7 KiB | 12.4 KiB |
The image shows an illustration of a magenta-colored cloud that brings together… div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103318/portrait_ratio3x4/320/427/3d72553... | 22.9 KiB | 12.1 KiB |
Concepts for the safe use of AI agents div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1102938/landscape_ratio4x3/768/576/abe55a... | 51.7 KiB | 11.3 KiB |
2025 HR Factbook div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103584/portrait_ratio3x4/320/427/a326461... | 19.4 KiB | 10.0 KiB |
Abdu Mudesir, Board member for Product and Technology until March 2026 div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1023404/portrait_ratio3x4/320/427/8f79b33... | 19.4 KiB | 10.0 KiB |
Noxtua div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103678/landscape_ratio4x3/768/576/1230cb... | 44.4 KiB | 9.7 KiB |
Deutsche Telekom Board of Management div.module-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103796/portrait_ratio1x1/768/768/ca3fb6e... | 81.4 KiB | 9.5 KiB |
Telekom and Starlink div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103002/landscape_ratio4x3/768/576/e4d4d0... | 34.5 KiB | 7.5 KiB |
Illustration: public utilities with logos Deutsche Telekom and Thüga div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103960/portrait_ratio3x4/320/427/d471e2b... | 14.7 KiB | 6.2 KiB |
Image KI div.module-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1055158/portrait_ratio1x1/768/768/649789a... | 46.5 KiB | 5.4 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Estimated savings: 867 ms
| URL | Time Spent |
|---|---|
| telekom.net/ | 867 ms |
| www.telekom.com/ | 0.0 ms |
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.105 |
Share
Deutsche Telekom AG
04-16-2026 | 05:37 PM CET
29.11 €
+0.56 €
+1.96 … main.site-main > div.id07 > div.container-adaptive > article.module | 0.084 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.011 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.011 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.011 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.011 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.011 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.011 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.011 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.011 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.010 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.010 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.010 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.010 |
Cookies and similar technologies
We use cookies and similar technologies on ou… body#top > div#__tealiumGDPRecModal > div.cl-outer > dialog#promptLayerContent | 0.010 |
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Why this matters
Performance issues directly impact user engagement and conversion rates.
TTI
Diagnostics
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Estimated savings: 1.3 s 214.6 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.telekom.com/resource/themes/com/css/com-1021854-20.css | 228.6 KiB | 214.6 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Estimated savings: 590 ms 113.9 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.telekom.com/resource/themes/com/js/com-1021766-18.js | 133.0 KiB | 89.9 KiB |
| tags-eu.tiqcdn.com/utag/telekom/com/prod/utag.js | 60.8 KiB | 24.0 KiB |
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Other | 1.1 s |
| Style & Layout | 1.0 s |
| Script Evaluation | 989 ms |
| Rendering | 313 ms |
| Parse HTML & CSS | 149 ms |
| Script Parsing & Compilation | 94 ms |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Why this matters
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Headquarters Deutsche Telekom div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1066812/landscape_ratio4x3/768/576/d0f5d7... |
Symbol picture international cooperation div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/417548/landscape_ratio4x3/768/576/95972b9... |
Nighttime construction scene: A Starlink antenna receives a magenta signal from… div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103908/landscape_ratio4x3/768/576/ca45a9... |
Noxtua div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103678/landscape_ratio4x3/768/576/1230cb... |
Keyvisual trust div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103346/landscape_ratio4x3/768/576/fafc6a... |
Concepts for the safe use of AI agents div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1102938/landscape_ratio4x3/768/576/abe55a... |
Telekom and Starlink div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103002/landscape_ratio4x3/768/576/e4d4d0... |
Abdu Mudesir, Board member for Product and Technology div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1103016/landscape_ratio4x3/768/576/5fe6bc... |
Two people speaking to each other on the smartphone. div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1102892/landscape_ratio4x3/768/576/fb938b... |
MWC stall Telekom 2026 div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1102904/landscape_ratio4x3/768/576/345408... |
Net Zero div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/1096698/landscape_ratio4x3/768/576/fd07c1... |
211028-Specials-Teaserbild-en div.content-wrapper > figure.media > div.cm-image-wrapper > img.cm-image | /resource/image/639656/landscape_ratio4x3/768/576/ed95581... |
More information about the performance of your application. These numbers don't directly affect the Performance score.
●Optimize DOM size
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●JavaScript execution time 1.1 s
●Avoid long main-thread tasks 5 long tasks found
●Avoid non-composited animations 8 animated elements found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 40 ms
●Server Backend Latencies 70 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 340 ms
○INP breakdown
○User Timing marks and measures
100
Accessibility
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●Select elements have associated label elements.
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
100
Best Practices
General
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Why this matters
Performance issues directly impact user engagement and conversion rates.
●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
92
SEO
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Content Best Practices
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| www.telekom.com/en/company/topic-specials/net-zero | More information |
Format your HTML in a way that enables crawlers to better understand your app’s content.
○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`