Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

telefonieren-und-surfen.de

congstar Tarife (Vertrag, Prepaid, Homespot) und Handy Angebote

Page Load Speed

8.5 sec in total

First Response

1.3 sec

Resources Loaded

6.9 sec

Page Rendered

267 ms

telefonieren-und-surfen.de screenshot

About Website

Visit telefonieren-und-surfen.de now to see the best up-to-date Telefonieren Und Surfen content for Germany and also check out these interesting facts you probably never knew about telefonieren-und-surfen.de

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Visit telefonieren-und-surfen.de

Key Findings

We analyzed Telefonieren-und-surfen.de page load time and found that the first response time was 1.3 sec and then it took 7.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

telefonieren-und-surfen.de performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

81/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value3.4 s

92/100

10%

Network Requests Diagram

telefonieren-und-surfen.de

1317 ms

congstar.angebote-tarife.de

2422 ms

dY0xDoAwDAM_RBV4UltMhQQBxSmI31M2lk7n4ayb5D6Dxivs0BqSIc7Z6p4okYRTMtlTAv3ZMIziN9Sf5ajmgEqBwtZ8KH-zaQ2FHk06vy-14gU.css

383 ms

congstar-tarife-angebote.png

290 ms

congstar-tarife-angebote_mobil.png

291 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Telefonieren-und-surfen.de, 43% (16 requests) were made to Congstar.angebote-tarife.de and 19% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source Congstar.angebote-tarife.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 373.4 kB (68%)

Content Size

546.8 kB

After Optimization

173.4 kB

In fact, the total size of Telefonieren-und-surfen.de main page is 546.8 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. 35% of websites need less resources to load. HTML takes 199.2 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 172.7 kB

  • Original 199.2 kB
  • After minification 199.2 kB
  • After compression 26.6 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 172.7 kB or 87% of the original size.

Image Optimization

-7%

Potential reduce by 3.0 kB

  • Original 42.4 kB
  • After minification 39.4 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. Telefonieren Und Surfen images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 106.1 kB

  • Original 177.7 kB
  • After minification 175.3 kB
  • After compression 71.5 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 106.1 kB or 60% of the original size.

CSS Optimization

-72%

Potential reduce by 91.6 kB

  • Original 127.5 kB
  • After minification 125.8 kB
  • After compression 35.9 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. Telefonieren-und-surfen.de needs all CSS files to be minified and compressed as it can save up to 91.6 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (21%)

Requests Now

24

After Optimization

19

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Telefonieren Und Surfen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

telefonieren-und-surfen.de accessibility score

89

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA IDs are not unique

Best Practices

telefonieren-und-surfen.de best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

telefonieren-und-surfen.de SEO score

98

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

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 Telefonieren-und-surfen.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 Telefonieren-und-surfen.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 Telefonieren Und Surfen. 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: