Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

11833.de

11833 – Die Auskunft der Telekom | Telekom

Page Load Speed

7.6 sec in total

First Response

330 ms

Resources Loaded

7.1 sec

Page Rendered

202 ms

11833.de screenshot

About Website

Visit 11833.de now to see the best up-to-date 11833 content for Germany and also check out these interesting facts you probably never knew about 11833.de

Sie suchen eine Rufnummer im In- oder Ausland? Bei der Auskunft der Telekom erhalten Sie die Rufnummer und auf Wunsch auch weitere Informationen.

Visit 11833.de

Key Findings

We analyzed 11833.de page load time and found that the first response time was 330 ms and then it took 7.3 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

11833.de performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value11.5 s

5/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.1

89/100

15%

TTI (Time to Interactive)

Value18.1 s

3/100

10%

Network Requests Diagram

11833.de

330 ms

www.11833.de

1501 ms

core.css

277 ms

341 ms

video-large-taxi.png

2758 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 60% of them (30 requests) were addressed to the original 11833.de, 16% (8 requests) were made to Detemedien.de and 16% (8 requests) were made to Smsguru.de. The less responsive or slowest element that took the longest time to load (5.4 sec) belongs to the original domain 11833.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 717.4 kB (37%)

Content Size

1.9 MB

After Optimization

1.2 MB

In fact, the total size of 11833.de main page is 1.9 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. 30% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 294.4 kB

  • Original 319.9 kB
  • After minification 271.1 kB
  • After compression 25.6 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. This page needs HTML code to be minified as it can gain 48.8 kB, which is 15% 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 294.4 kB or 92% of the original size.

Image Optimization

-2%

Potential reduce by 25.2 kB

  • Original 1.1 MB
  • After minification 1.1 MB

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. 11833 images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 329.2 kB

  • Original 449.2 kB
  • After minification 437.1 kB
  • After compression 120.1 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 329.2 kB or 73% of the original size.

CSS Optimization

-87%

Potential reduce by 68.7 kB

  • Original 79.3 kB
  • After minification 60.4 kB
  • After compression 10.7 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. 11833.de needs all CSS files to be minified and compressed as it can save up to 68.7 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (23%)

Requests Now

47

After Optimization

36

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 11833. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

11833.de accessibility score

81

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

11833.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

11833.de SEO score

100

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

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 11833.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 11833.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 11833. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: