Tools & Wizards About Us
sde21.eu screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

sde21.eu

Solar Decathlon Europe 21/22 (SDE 21/22) Wuppertal Germany

Page Load Speed

4.6 sec in total

First Response

358 ms

Resources Loaded

3.8 sec

Page Rendered

403 ms

sde21.eu screenshot

About Website

Welcome to sde21.eu homepage info - get ready to check SDE 21 best content right away, or after learning these important things about sde21.eu

Mit dem Solar Decathlon Europe 21/22 (SDE 21/22) in Wuppertal kam der internationale Hochschulwettbewerb zum ersten Mal nach Deutschland.

Visit sde21.eu

Key Findings

We analyzed Sde21.eu page load time and found that the first response time was 358 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

sde21.eu performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value250 ms

84/100

30%

CLS (Cumulative Layout Shift)

Value0.54

14/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

Network Requests Diagram

sde21.eu

358 ms

117 ms

bundle.css

897 ms

bundle.js

919 ms

Form.min.1687770965.js

126 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Sde21.eu, 58% (28 requests) were made to Sdeurope.uni-wuppertal.de and 35% (17 requests) were made to Assets.uni-wuppertal.de. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Sdeurope.uni-wuppertal.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 72.7 kB (68%)

Content Size

106.8 kB

After Optimization

34.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sde21.eu main page is 106.8 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 82.4 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 72.7 kB

  • Original 82.4 kB
  • After minification 44.1 kB
  • After compression 9.7 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 38.3 kB, which is 46% 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 72.7 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 2.2 kB
  • After minification 2.2 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. SDE 21 images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 31 B

  • Original 22.0 kB
  • After minification 22.0 kB
  • After compression 22.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-9%

Potential reduce by 14 B

  • Original 150 B
  • After minification 146 B
  • After compression 136 B

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. Sde21.eu has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

41

After Optimization

41

  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SDE 21. According to our analytics all requests are already optimized.

Network Requests Diagram

sde21.eu

sde21.eu

358 ms

117 ms

bundle.css

bundle.css

897 ms

bundle.js

bundle.js

919 ms

Form.min.1687770965.js

Form.min.1687770965.js

126 ms

icons.css

icons.css

1136 ms

csm_Impressions__21____SDE_21-22_e3f119da99.jpg

csm_Impressions__21____SDE_21-22_e3f119da99.jpg

604 ms

csm_All_Teams_Final_Award__2____SDE_21-22_23cc826fd0.jpg

csm_All_Teams_Final_Award__2____SDE_21-22_23cc826fd0.jpg

912 ms

csm_SDE-Buch_Ver%C3%B6ffentlichung_a42999e421.jpg

csm_SDE-Buch_Ver%C3%B6ffentlichung_a42999e421.jpg

800 ms

csm_csm_SDE21-22_goes_Living_Lab_cdefa9a34f_4f928f12e4.jpg

csm_csm_SDE21-22_goes_Living_Lab_cdefa9a34f_4f928f12e4.jpg

799 ms

csm_LL_Campus_Drohne_5feee86fdf.jpg

csm_LL_Campus_Drohne_5feee86fdf.jpg

801 ms

csm_SDE-Buch_Ver%C3%B6ffentlichung_a389468da5.jpg

csm_SDE-Buch_Ver%C3%B6ffentlichung_a389468da5.jpg

699 ms

csm_Impressions_of_the_day__6____SDE_21-22_4a00da94b7.jpg

csm_Impressions_of_the_day__6____SDE_21-22_4a00da94b7.jpg

784 ms

csm_KIT_11_Wuppertal_220624_65_10c5738619.jpg

csm_KIT_11_Wuppertal_220624_65_10c5738619.jpg

937 ms

csm_NEB_logo_small_square_298dd47fd1.png

csm_NEB_logo_small_square_298dd47fd1.png

917 ms

csm_00_Groundbreaking__1____SDE_21-22_1e608e6513.jpg

csm_00_Groundbreaking__1____SDE_21-22_1e608e6513.jpg

1021 ms

csm_Key_visual_Solar_Campus_copyright_SDE_21_22_7d5e6577e6.jpg

csm_Key_visual_Solar_Campus_copyright_SDE_21_22_7d5e6577e6.jpg

916 ms

csm_Mirker_Quartier_Fassade___SDE_21_22-1090x613_e9a94cee1c.jpg

csm_Mirker_Quartier_Fassade___SDE_21_22-1090x613_e9a94cee1c.jpg

917 ms

csm_building-house_6_copyright-SDE19-EMI-non-profit-ltd-1090x613_740523696c.jpeg

csm_building-house_6_copyright-SDE19-EMI-non-profit-ltd-1090x613_740523696c.jpeg

1025 ms

csm_Hampe-Lorberg-Heiss-Baierl-_-SDE-21-22-1090x613_3c8eb7d734.jpg

csm_Hampe-Lorberg-Heiss-Baierl-_-SDE-21-22-1090x613_3c8eb7d734.jpg

1031 ms

csm_codeks-Solar-Decathlon-Ausstellung-_-SDE-21-22-1_86e66c63c3.jpg

csm_codeks-Solar-Decathlon-Ausstellung-_-SDE-21-22-1_86e66c63c3.jpg

1029 ms

csm_Teamfoto_mit-Eindhoven-_-SDE-21-22_23feae49c8.jpg

csm_Teamfoto_mit-Eindhoven-_-SDE-21-22_23feae49c8.jpg

1074 ms

csm_teamfoto-workshop-_-SDE-21-22-scaled_94e5c9c851.jpg

csm_teamfoto-workshop-_-SDE-21-22-scaled_94e5c9c851.jpg

1046 ms

csm_Lorberg_Schneidewind_copyright-SDE-21-22-1090x614_32f86e8962.jpg

csm_Lorberg_Schneidewind_copyright-SDE-21-22-1090x614_32f86e8962.jpg

1132 ms

csm_sde21_22_logo_full_tagline_L_RGB_d8e7d001d2.png

csm_sde21_22_logo_full_tagline_L_RGB_d8e7d001d2.png

1137 ms

csm_sde21-teams_copyright-SDE19-%C3%89MI-Non-profit-Ltd.-1090x613_89c114da09.jpg

csm_sde21-teams_copyright-SDE19-%C3%89MI-Non-profit-Ltd.-1090x613_89c114da09.jpg

1143 ms

csm_lorberg-daniel-king-richard_copyright-SDE21-1090x613_6232a1ab09.jpg

csm_lorberg-daniel-king-richard_copyright-SDE21-1090x613_6232a1ab09.jpg

1145 ms

csm_sde21_22_logo_full_tagline_L_RGB_fba7a808c4.png

csm_sde21_22_logo_full_tagline_L_RGB_fba7a808c4.png

1159 ms

csm_Logos_Website_BUW_9cc351d9f1.jpg

csm_Logos_Website_BUW_9cc351d9f1.jpg

1202 ms

csm_Logos_Website-EEF_815f249ef0.jpg

csm_Logos_Website-EEF_815f249ef0.jpg

1245 ms

csm_Logos_Website-BMWK_f2f9dea4f0.jpg

csm_Logos_Website-BMWK_f2f9dea4f0.jpg

1250 ms

logo_header_white.svg

logo_header_white.svg

113 ms

iconFacebook.png

iconFacebook.png

112 ms

iconInstagram.png

iconInstagram.png

239 ms

iconTwitter.svg

iconTwitter.svg

238 ms

iconYoutube.png

iconYoutube.png

292 ms

iconLinkedIn.png

iconLinkedIn.png

346 ms

logo_footer_white.svg

logo_footer_white.svg

346 ms

csm_220622234_Preview_db2087369e.jpg

csm_220622234_Preview_db2087369e.jpg

1568 ms

open-sans-v34-latin-300.woff

open-sans-v34-latin-300.woff

380 ms

open-sans-v34-latin-regular.woff

open-sans-v34-latin-regular.woff

559 ms

open-sans-v34-latin-500.woff

open-sans-v34-latin-500.woff

440 ms

open-sans-v34-latin-600.woff

open-sans-v34-latin-600.woff

448 ms

Amiri-Regular.woff

Amiri-Regular.woff

865 ms

matomo.js

matomo.js

794 ms

iconEasyLanguage.svg

iconEasyLanguage.svg

258 ms

loading-white.svg

loading-white.svg

285 ms

matomo.php

matomo.php

136 ms

Accessibility Review

sde21.eu accessibility score

96

Accessibility Issues

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.

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

Links do not have a discernible name

Best Practices

sde21.eu 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

SEO Factors

sde21.eu SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Document doesn't have a valid hreflang

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 Sde21.eu 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 Sde21.eu 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

sde21.eu

Open Graph description is not detected on the main page of SDE 21. 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: