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csds.uva.nl screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    33% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

csds.uva.nl

Centre for Sustainable Development Studies - University of Amsterdam

Page Load Speed

7.5 sec in total

First Response

823 ms

Resources Loaded

4.3 sec

Page Rendered

2.4 sec

csds.uva.nl screenshot

About Website

Welcome to csds.uva.nl homepage info - get ready to check Csds Uva best content for Netherlands right away, or after learning these important things about csds.uva.nl

CSDS (University of Amsterdam) is a centre for research, education and debate about sustainable development, environmental issues, poverty & human dignity

Visit csds.uva.nl

Key Findings

We analyzed Csds.uva.nl page load time and found that the first response time was 823 ms and then it took 6.6 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

csds.uva.nl performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value13.0 s

0/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value6,050 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.092

91/100

15%

TTI (Time to Interactive)

Value15.4 s

7/100

10%

Network Requests Diagram

csds.uva.nl

823 ms

gtm.js

72 ms

app.min.css

404 ms

uvacookiebar.min.js

883 ms

app.min.js

1040 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 54% of them (15 requests) were addressed to the original Csds.uva.nl, 11% (3 requests) were made to Google-analytics.com and 7% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Csds.uva.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 98.5 kB (65%)

Content Size

152.8 kB

After Optimization

54.2 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Csds.uva.nl main page is 152.8 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. 60% of websites need less resources to load. HTML takes 132.0 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 98.5 kB

  • Original 132.0 kB
  • After minification 123.3 kB
  • After compression 33.5 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 98.5 kB or 75% of the original size.

JavaScript Optimization

-0%

Potential reduce by 46 B

  • Original 20.7 kB
  • After minification 20.7 kB
  • After compression 20.7 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

-0%

Potential reduce by 0 B

  • Original 5 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.

Requests Breakdown

Number of requests can be reduced by 12 (44%)

Requests Now

27

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Csds Uva. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

csds.uva.nl

csds.uva.nl

823 ms

gtm.js

gtm.js

72 ms

app.min.css

app.min.css

404 ms

uvacookiebar.min.js

uvacookiebar.min.js

883 ms

app.min.js

app.min.js

1040 ms

MathJax.js

MathJax.js

185 ms

optimize.js

optimize.js

539 ms

js

js

108 ms

emf5eij.css

emf5eij.css

566 ms

analytics.js

analytics.js

12 ms

p.css

p.css

75 ms

collect

collect

17 ms

svg-logos.svg

svg-logos.svg

164 ms

antananarivo-2.jpg

antananarivo-2.jpg

1054 ms

solar-4478105_1920.jpg

solar-4478105_1920.jpg

576 ms

1-people.jpg

1-people.jpg

548 ms

4-news.jpg

4-news.jpg

1116 ms

2-community.jpg

2-community.jpg

1093 ms

joyeeta-gupta.png

joyeeta-gupta.png

1360 ms

publications.jpg

publications.jpg

767 ms

inea-logo.jpg

inea-logo.jpg

678 ms

wj-duyvendak.jpg

wj-duyvendak.jpg

862 ms

siteanalyze_6004849.js

siteanalyze_6004849.js

93 ms

TeX-AMS_HTML.js

TeX-AMS_HTML.js

51 ms

101551308.js

101551308.js

176 ms

surveyview.aspx

surveyview.aspx

76 ms

image.aspx

image.aspx

12 ms

print.min.css

print.min.css

100 ms

Accessibility Review

csds.uva.nl accessibility score

100

Accessibility Issues

Best Practices

csds.uva.nl best practices score

92

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

SEO Factors

csds.uva.nl 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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Csds.uva.nl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Csds.uva.nl 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

csds.uva.nl

Open Graph description is not detected on the main page of Csds Uva. 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: