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Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

javascript-spezial.de

entwickler.de - Unbegrenzt. Wegweisend. Kompakt.

Page Load Speed

12.2 sec in total

First Response

350 ms

Resources Loaded

10.6 sec

Page Rendered

1.2 sec

About Website

Click here to check amazing Javascript Spezial content. Otherwise, check out these important facts you probably never knew about javascript-spezial.de

Software Know-How mit der Fullstack-Experience. Alles für Software-Professionals. Artikel, Live Events, Tutorials und Konferenzen.

Visit javascript-spezial.de

Key Findings

We analyzed Javascript-spezial.de page load time and found that the first response time was 350 ms and then it took 11.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

javascript-spezial.de performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.2 s

1/100

10%

LCP (Largest Contentful Paint)

Value17.8 s

0/100

25%

SI (Speed Index)

Value10.2 s

8/100

10%

TBT (Total Blocking Time)

Value1,500 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value21.0 s

1/100

10%

Network Requests Diagram

javascript-spezial.de

350 ms

entwickler.de

781 ms

069aa186c238a292ead3428efe5e300a.js

616 ms

c12c5edde4cceeab101a11f0df3b97ff.js

638 ms

animate.min.css

448 ms

Our browser made a total of 142 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Javascript-spezial.de, 84% (119 requests) were made to Entwickler.de and 4% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (4.4 sec) relates to the external source Entwickler.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 853.5 kB (11%)

Content Size

7.8 MB

After Optimization

6.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Javascript-spezial.de main page is 7.8 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 5.9 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 558.2 kB

  • Original 651.1 kB
  • After minification 629.4 kB
  • After compression 92.9 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 558.2 kB or 86% of the original size.

Image Optimization

-4%

Potential reduce by 256.0 kB

  • Original 5.9 MB
  • After minification 5.6 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. Javascript Spezial images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 5.1 kB

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 999.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-15%

Potential reduce by 34.2 kB

  • Original 226.4 kB
  • After minification 219.4 kB
  • After compression 192.1 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. Javascript-spezial.de needs all CSS files to be minified and compressed as it can save up to 34.2 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 69 (54%)

Requests Now

128

After Optimization

59

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 128 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Javascript Spezial. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 46 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

javascript-spezial.de accessibility score

74

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-*] attributes do not match their roles

High

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

Best Practices

javascript-spezial.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

javascript-spezial.de SEO score

78

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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