Tools & Wizards About Us

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

one-telecom.de

ONE Telecom

Page Load Speed

5.8 sec in total

First Response

394 ms

Resources Loaded

5.2 sec

Page Rendered

232 ms

About Website

Visit one-telecom.de now to see the best up-to-date ONE Telecom content for Germany and also check out these interesting facts you probably never knew about one-telecom.de

Riesige Auswahl an Handys & Smartphones bei ONE telecom günstig online kaufen - Ihr Handy und Smartphone Shop für Telefone von z.B. Apple, Samsung, Nokia, Sony Ericsson oder HTC.

Visit one-telecom.de

Key Findings

We analyzed One-telecom.de page load time and found that the first response time was 394 ms and then it took 5.4 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

one-telecom.de performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

51/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.21

59/100

15%

TTI (Time to Interactive)

Value7.5 s

48/100

10%

Network Requests Diagram

one-telecom.de

394 ms

www.one-telecom.de

716 ms

styles.css

263 ms

jquery.js

388 ms

getseal

133 ms

Our browser made a total of 115 requests to load all elements on the main page. We found that 18% of them (21 requests) were addressed to the original One-telecom.de, 76% (87 requests) were made to Images.one-telecom.de and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Images.one-telecom.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 256.8 kB (71%)

Content Size

363.8 kB

After Optimization

107.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of One-telecom.de main page is 363.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 133.4 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 53.7 kB

  • Original 63.3 kB
  • After minification 53.3 kB
  • After compression 9.7 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. This page needs HTML code to be minified as it can gain 10.0 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 53.7 kB or 85% of the original size.

Image Optimization

-26%

Potential reduce by 15.9 kB

  • Original 60.8 kB
  • After minification 44.9 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. Obviously, ONE Telecom needs image optimization as it can save up to 15.9 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 92.7 kB

  • Original 133.4 kB
  • After minification 133.1 kB
  • After compression 40.7 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 92.7 kB or 69% of the original size.

CSS Optimization

-89%

Potential reduce by 94.5 kB

  • Original 106.3 kB
  • After minification 73.3 kB
  • After compression 11.7 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. One-telecom.de needs all CSS files to be minified and compressed as it can save up to 94.5 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (6%)

Requests Now

111

After Optimization

104

  • Images
  • JavaScript
  • CSS

The browser has sent 111 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ONE Telecom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

one-telecom.de accessibility score

62

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.

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

one-telecom.de best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

one-telecom.de SEO score

71

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 One-telecom.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 One-telecom.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 data is detected on the main page of ONE Telecom. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: