Tools & Wizards About Us
composites-kuleuven.be screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

composites-kuleuven.be

Composite materials — Department of Materials Engineering

Page Load Speed

3.3 sec in total

First Response

565 ms

Resources Loaded

2.4 sec

Page Rendered

352 ms

composites-kuleuven.be screenshot

About Website

Welcome to composites-kuleuven.be homepage info - get ready to check Composite Skuleuven best content right away, or after learning these important things about composites-kuleuven.be

Welcome to the webpage of the Composite Materials Group in the Department of Materials Engineering (MTM) of KU Leuven. Research on polymer matrix composites was started by Prof. Ignaas Verpoest in 198...

Visit composites-kuleuven.be

Key Findings

We analyzed Composites-kuleuven.be page load time and found that the first response time was 565 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

composites-kuleuven.be performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value7.5 s

27/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

Network Requests Diagram

565 ms

OtAutoBlock.js

42 ms

otSDKStub.js

57 ms

uploadify.css

95 ms

fileuploader.css

188 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Composites-kuleuven.be, 8% (3 requests) were made to Cdn.cookielaw.org and 8% (3 requests) were made to Stijl.kuleuven.be. The less responsive or slowest element that took the longest time to load (888 ms) relates to the external source Mtm.kuleuven.be.

Page Optimization Overview & Recommendations

Page size can be reduced by 866.4 kB (39%)

Content Size

2.2 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Composites-kuleuven.be main page is 2.2 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 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 37.5 kB

  • Original 48.0 kB
  • After minification 43.3 kB
  • After compression 10.5 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 37.5 kB or 78% of the original size.

Image Optimization

-13%

Potential reduce by 156.7 kB

  • Original 1.2 MB
  • After minification 1.0 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. Obviously, Composite Skuleuven needs image optimization as it can save up to 156.7 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 672.1 kB

  • Original 947.3 kB
  • After minification 919.7 kB
  • After compression 275.1 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 672.1 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (65%)

Requests Now

34

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Composite Skuleuven. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

565 ms

OtAutoBlock.js

OtAutoBlock.js

42 ms

otSDKStub.js

otSDKStub.js

57 ms

uploadify.css

uploadify.css

95 ms

fileuploader.css

fileuploader.css

188 ms

++resource++easyform.css

++resource++easyform.css

270 ms

faceted-jquery.min.css

faceted-jquery.min.css

357 ms

faceted-view.min.css

faceted-view.min.css

271 ms

faceted-edit.min.css

faceted-edit.min.css

268 ms

css2

css2

30 ms

staff.css

staff.css

272 ms

theme.min.css

theme.min.css

367 ms

wms.css

wms.css

778 ms

fullscreen.css

fullscreen.css

360 ms

fullscreen.js

fullscreen.js

360 ms

bundle.min.js

bundle.min.js

714 ms

faceted-jquery.min.js

faceted-jquery.min.js

888 ms

faceted-view.min.js

faceted-view.min.js

537 ms

faceted-edit.min.js

faceted-edit.min.js

627 ms

jquery.uploadify.js

jquery.uploadify.js

453 ms

fileuploader.js

fileuploader.js

459 ms

helpers.js

helpers.js

547 ms

wmsjs.js

wmsjs.js

565 ms

jquery.colorbox.js

jquery.colorbox.js

864 ms

a8db6e5f-20c8-46f0-86d7-2835a0229013.json

a8db6e5f-20c8-46f0-86d7-2835a0229013.json

114 ms

location

location

45 ms

image

image

644 ms

image-400-e61e669c84507ded954c09fd47f1858f.png

image-400-e61e669c84507ded954c09fd47f1858f.png

123 ms

image

image

211 ms

preview

preview

124 ms

preview

preview

123 ms

preview

preview

280 ms

logo.svg

logo.svg

148 ms

font

font

17 ms

font

font

40 ms

font

font

135 ms

Accessibility Review

composites-kuleuven.be accessibility score

94

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.

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

Links do not have a discernible name

Best Practices

composites-kuleuven.be 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

High

Page has valid source maps

SEO Factors

composites-kuleuven.be SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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 Composites-kuleuven.be 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 Composites-kuleuven.be 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

composites-kuleuven.be

Open Graph data is detected on the main page of Composite Skuleuven. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: