Tools & Wizards About Us
heise-shop.de screenshot

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

heise-shop.de screenshot

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

heise-shop.de

heise-shop.de

331 ms

shop.heise.de

shop.heise.de

827 ms

288689636920174

288689636920174

902 ms

kameleoon.js

kameleoon.js

170 ms

all.css

all.css

322 ms

all.js

all.js

846 ms

3f49b894da5a822771011fe5186edb405fc351e2_Nitrokey_3A_Mini_1500_1.jpg

3f49b894da5a822771011fe5186edb405fc351e2_Nitrokey_3A_Mini_1500_1.jpg

750 ms

877d9149de6ccc0164c0fb09a38957b70a57d8d6_vk_Doss_schatten.png

877d9149de6ccc0164c0fb09a38957b70a57d8d6_vk_Doss_schatten.png

624 ms

dadc88a554be6f01cba248b268aa3e864b675e9c_oxocard_science_plus_shop_01.png

dadc88a554be6f01cba248b268aa3e864b675e9c_oxocard_science_plus_shop_01.png

511 ms

bdc154766191d8a3d6051529ab2ede9762f32388_Klemm_Family.png

bdc154766191d8a3d6051529ab2ede9762f32388_Klemm_Family.png

1345 ms

3dd17e19b9cd6e2054a5583271ddf9859952c5b3_CC_Professional_Compound_Cup_Foto_front_1500x1500px.jpg

3dd17e19b9cd6e2054a5583271ddf9859952c5b3_CC_Professional_Compound_Cup_Foto_front_1500x1500px.jpg

718 ms

53dd84553b1a9db456b8d5662d1096f67e2df153_archiv_sticks_diverse_stoerer_make_11_23_1200x800px.jpg

53dd84553b1a9db456b8d5662d1096f67e2df153_archiv_sticks_diverse_stoerer_make_11_23_1200x800px.jpg

528 ms

9ad775a458621fecace167b5deff889566f48c87_archiv_sticks_diverse_stoerer_ct_83_23_1200x800px.jpg

9ad775a458621fecace167b5deff889566f48c87_archiv_sticks_diverse_stoerer_ct_83_23_1200x800px.jpg

1078 ms

094eb888525a538a989b1b37f80c215ab69552a5_ctKI1124_bundle.png

094eb888525a538a989b1b37f80c215ab69552a5_ctKI1124_bundle.png

1121 ms

a915e200b6d89c274d54b00f58c5d1f6fbd059cb_ix.2024.05.cover_without_barcode.png

a915e200b6d89c274d54b00f58c5d1f6fbd059cb_ix.2024.05.cover_without_barcode.png

1311 ms

f150e0bda62a3baaa36e32027f38d4d140e43543_Titel.png

f150e0bda62a3baaa36e32027f38d4d140e43543_Titel.png

1319 ms

a1426332fad767406eea6c176c10752093506a16_tr.2024.03.cover_without_barcode.png

a1426332fad767406eea6c176c10752093506a16_tr.2024.03.cover_without_barcode.png

2670 ms

c81149b9be65e33773f9f2f8734b5c692c35e5c7_ch.2024.02.cover_without_barcode.png

c81149b9be65e33773f9f2f8734b5c692c35e5c7_ch.2024.02.cover_without_barcode.png

3968 ms

da0b4987abb7d6dec363be2b866dc596b90af57c_df.2024.03.cover_without_barcode.png

da0b4987abb7d6dec363be2b866dc596b90af57c_df.2024.03.cover_without_barcode.png

4008 ms

e84bfcdeda9655705ec36e305154f344196c6f41_14039.jpg

e84bfcdeda9655705ec36e305154f344196c6f41_14039.jpg

1571 ms

fce498855f731fb78a264630e861da8f4152b06f_9783836299282_800.png

fce498855f731fb78a264630e861da8f4152b06f_9783836299282_800.png

1958 ms

9ce7068607ecb65f4c0e15cf3e1965a3c86d3d36_9783747506936.jpg

9ce7068607ecb65f4c0e15cf3e1965a3c86d3d36_9783747506936.jpg

2014 ms

32a10fd36334a17be6855d64e6b0e95a489073cd_9783836297639_800.png

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2227 ms

ce851a0504acb4a0b665007eb780071fc4ff6fcd_leseprobe_rheinwerkverlag_geheimakte_computer_____everything_they_don___t_teach_you_about_tech_.png

ce851a0504acb4a0b665007eb780071fc4ff6fcd_leseprobe_rheinwerkverlag_geheimakte_computer_____everything_they_don___t_teach_you_about_tech_.png

2039 ms

92b028fbd10b9d89f77422c8ebbf912e5320cde7_pv2_600x750.png

92b028fbd10b9d89f77422c8ebbf912e5320cde7_pv2_600x750.png

2709 ms

95d3c8c09578d4dc7f2ab7006af26ce31d8239dc_wie_mache_ich_das_in_photoshop.jpg

95d3c8c09578d4dc7f2ab7006af26ce31d8239dc_wie_mache_ich_das_in_photoshop.jpg

2408 ms

b678b5f37a5320e588cc9e3c392ca0371ed0652e_ARTK_CT0_9783446477797_0001.jpg

b678b5f37a5320e588cc9e3c392ca0371ed0652e_ARTK_CT0_9783446477797_0001.jpg

4231 ms

heise-shop.svg

heise-shop.svg

176 ms

ctKI1124_hsSlider%281104%20x%20230%20px%29.png

ctKI1124_hsSlider%281104%20x%20230%20px%29.png

717 ms

ct_KI-Keno_shopslider-desktop_5-24.png

ct_KI-Keno_shopslider-desktop_5-24.png

717 ms

heiseplus_mai_shop_1104x345px_4-24_einjahr.png

heiseplus_mai_shop_1104x345px_4-24_einjahr.png

910 ms

heise-Shop_gro_1104x345.jpg

heise-Shop_gro_1104x345.jpg

909 ms

make-abo_shop-hauptslider_1104x345px_05-2024.png

make-abo_shop-hauptslider_1104x345px_05-2024.png

907 ms

2024-04_iX_shophauptslider_1104x345px_35jubi_mit_Zeitstrahl.png

2024-04_iX_shophauptslider_1104x345px_35jubi_mit_Zeitstrahl.png

855 ms

ITSI-Mainz-Shop-klein-935x200.jpg

ITSI-Mainz-Shop-klein-935x200.jpg

911 ms

RaspiDossierN_935%20x%20200%20px.png

RaspiDossierN_935%20x%20200%20px.png

1019 ms

bc%28%29Spring-2024-OnlineBanner-Shop-klein-935x200.jpg

bc%28%29Spring-2024-OnlineBanner-Shop-klein-935x200.jpg

1486 ms

t3n76-miniheader%20%28935%20x%20200%20px%29.png

t3n76-miniheader%20%28935%20x%20200%20px%29.png

1118 ms

paper-plane-outline.svg

paper-plane-outline.svg

1013 ms

zahlung-visa-mastercard.svg

zahlung-visa-mastercard.svg

1015 ms

zahlung-lastschrift.svg

zahlung-lastschrift.svg

1017 ms

zahlung-rechnung.svg

zahlung-rechnung.svg

1120 ms

zahlung-paypal.svg

zahlung-paypal.svg

1121 ms

versand-dpd.svg

versand-dpd.svg

1123 ms

versand-deutsche-post.svg

versand-deutsche-post.svg

1123 ms

versand-dhl.svg

versand-dhl.svg

1223 ms

onsite.min.js

onsite.min.js

538 ms

wt

wt

529 ms

illustration-newsletter.svg

illustration-newsletter.svg

606 ms

l

l

521 ms

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

heise-shop.de

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: