Report Summary

  • 20

    Performance

    Renders faster than
    38% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 85% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 86

    SEO

    Google-friendlier than
    61% of websites

deutsche-telefon.de

Telefonanlagen ▷ SIP Experten für IP Telefonie | Deutsche Telefon

Page Load Speed

6 sec in total

First Response

322 ms

Resources Loaded

5.3 sec

Page Rendered

358 ms

deutsche-telefon.de screenshot

About Website

Click here to check amazing Deutsche Telefon content for Germany. Otherwise, check out these important facts you probably never knew about deutsche-telefon.de

Telefonanlagen ► IP bzw. VOIP Telefonie ✓ Spezialist für moderne SIP Kommunikation ✓ Jetzt bei Deutsche Telefon, einem der führenden Anbieter informieren.

Visit deutsche-telefon.de

Key Findings

We analyzed Deutsche-telefon.de page load time and found that the first response time was 322 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

deutsche-telefon.de performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value12.6 s

0/100

25%

SI (Speed Index)

Value12.1 s

3/100

10%

TBT (Total Blocking Time)

Value880 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.241

52/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

Network Requests Diagram

deutsche-telefon.de

322 ms

www.deutsche-telefon.de

1910 ms

template.css.php

392 ms

widgetkit-3c4db9a5.css

293 ms

css

37 ms

Our browser made a total of 127 requests to load all elements on the main page. We found that 58% of them (74 requests) were addressed to the original Deutsche-telefon.de, 6% (8 requests) were made to Pubads.g.doubleclick.net and 5% (6 requests) were made to Adserver.adtech.de. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Deutsche-telefon.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 699.5 kB (54%)

Content Size

1.3 MB

After Optimization

593.5 kB

In fact, the total size of Deutsche-telefon.de main page is 1.3 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Javascripts take 669.1 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 89.6 kB

  • Original 105.2 kB
  • After minification 102.1 kB
  • After compression 15.6 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 89.6 kB or 85% of the original size.

Image Optimization

-6%

Potential reduce by 22.6 kB

  • Original 365.0 kB
  • After minification 342.5 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Deutsche Telefon images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 457.2 kB

  • Original 669.1 kB
  • After minification 634.8 kB
  • After compression 211.9 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 457.2 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 130.2 kB

  • Original 153.8 kB
  • After minification 138.6 kB
  • After compression 23.6 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Deutsche-telefon.de needs all CSS files to be minified and compressed as it can save up to 130.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 65 (56%)

Requests Now

117

After Optimization

52

The browser has sent 117 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Deutsche Telefon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

deutsche-telefon.de accessibility score

94

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Best Practices

deutsche-telefon.de best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

deutsche-telefon.de SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Deutsche-telefon.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Deutsche-telefon.de main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of Deutsche Telefon. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: