Tools & Wizards About Us

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

heise-shop.de

heise Shop - IT-Zeitschriften, Fachbücher, eBooks, digitale Magazine und Gadgets | heise shop

Page Load Speed

9.2 sec in total

First Response

331 ms

Resources Loaded

5.7 sec

Page Rendered

3.2 sec

About Website

Click here to check amazing Heise Shop content. Otherwise, check out these important facts you probably never knew about heise-shop.de

Im heise Shop direkt: Unsere IT- und Technik Zeitschriften (c't, iX, Mac & i, Make:), c't Fotografie, Technology Review, Sonderhefte sowie IT-Fachbücher, eBooks und Gadgets.

Visit heise-shop.de

Key Findings

We analyzed Heise-shop.de page load time and found that the first response time was 331 ms and then it took 8.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

heise-shop.de performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value14.0 s

0/100

25%

SI (Speed Index)

Value7.8 s

24/100

10%

TBT (Total Blocking Time)

Value780 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value1.402

0/100

15%

TTI (Time to Interactive)

Value11.9 s

17/100

10%

Network Requests Diagram

heise-shop.de

331 ms

shop.heise.de

827 ms

288689636920174

902 ms

kameleoon.js

170 ms

all.css

322 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Heise-shop.de, 46% (23 requests) were made to Shop.heise.de and 42% (21 requests) were made to Heise.cloudimg.io. The less responsive or slowest element that took the longest time to load (4.2 sec) relates to the external source Heise.cloudimg.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 661.2 kB (6%)

Content Size

11.3 MB

After Optimization

10.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Heise-shop.de main page is 11.3 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. 30% of websites need less resources to load. Images take 10.4 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 377.1 kB

  • Original 411.9 kB
  • After minification 207.7 kB
  • After compression 34.8 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 204.2 kB, which is 50% 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 377.1 kB or 92% of the original size.

Image Optimization

-2%

Potential reduce by 193.6 kB

  • Original 10.4 MB
  • After minification 10.2 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. Heise Shop images are well optimized though.

JavaScript Optimization

-26%

Potential reduce by 90.0 kB

  • Original 347.0 kB
  • After minification 347.0 kB
  • After compression 257.0 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 90.0 kB or 26% of the original size.

CSS Optimization

-1%

Potential reduce by 410 B

  • Original 62.0 kB
  • After minification 62.0 kB
  • After compression 61.6 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. Heise-shop.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (21%)

Requests Now

48

After Optimization

38

  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Heise Shop. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

heise-shop.de accessibility score

67

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

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

High

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

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Best Practices

heise-shop.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

heise-shop.de SEO score

93

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

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

    N/A

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Heise-shop.de can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is German. Our system also found out that Heise-shop.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 Heise Shop. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: