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radboud.sona-systems.com screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    75% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

radboud.sona-systems.com

Radboud Research Participation System

Page Load Speed

2.2 sec in total

First Response

221 ms

Resources Loaded

1.9 sec

Page Rendered

123 ms

radboud.sona-systems.com screenshot

About Website

Click here to check amazing Radboud Sona System S content for United States. Otherwise, check out these important facts you probably never knew about radboud.sona-systems.com

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Key Findings

We analyzed Radboud.sona-systems.com page load time and found that the first response time was 221 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

radboud.sona-systems.com performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.5 s

70/100

10%

Network Requests Diagram

radboud.sona-systems.com

221 ms

Default.aspx

84 ms

Default.aspx

442 ms

bootstrap.min.css

254 ms

bootstrap-reset.css

324 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 94% of them (33 requests) were addressed to the original Radboud.sona-systems.com, 3% (1 request) were made to Ajax.aspnetcdn.com and 3% (1 request) were made to Netdna.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (690 ms) belongs to the original domain Radboud.sona-systems.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 377.7 kB (54%)

Content Size

697.6 kB

After Optimization

319.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Radboud.sona-systems.com main page is 697.6 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. 30% of websites need less resources to load. CSS take 278.0 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 14.5 kB

  • Original 18.5 kB
  • After minification 15.1 kB
  • After compression 4.1 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 3.4 kB, which is 19% 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 14.5 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 1.7 kB

  • Original 197.8 kB
  • After minification 196.1 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. Radboud Sona System S images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 128.9 kB

  • Original 203.3 kB
  • After minification 176.5 kB
  • After compression 74.4 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 128.9 kB or 63% of the original size.

CSS Optimization

-84%

Potential reduce by 232.7 kB

  • Original 278.0 kB
  • After minification 233.3 kB
  • After compression 45.3 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. Radboud.sona-systems.com needs all CSS files to be minified and compressed as it can save up to 232.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (85%)

Requests Now

26

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Radboud Sona System S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

radboud.sona-systems.com

radboud.sona-systems.com

221 ms

Default.aspx

Default.aspx

84 ms

Default.aspx

Default.aspx

442 ms

bootstrap.min.css

bootstrap.min.css

254 ms

bootstrap-reset.css

bootstrap-reset.css

324 ms

typeaheadjs.css

typeaheadjs.css

245 ms

bootstrap-accessibility.css

bootstrap-accessibility.css

248 ms

font-awesome.css

font-awesome.css

410 ms

bootstrap-datepicker.css

bootstrap-datepicker.css

406 ms

multi-select.css

multi-select.css

325 ms

style.css

style.css

645 ms

style-responsive.css

style-responsive.css

334 ms

open-sans-font.css

open-sans-font.css

400 ms

custom.css

custom.css

408 ms

tasks.css

tasks.css

413 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

152 ms

WebResource.axd

WebResource.axd

557 ms

WebResource.axd

WebResource.axd

480 ms

bootstrap.min.js

bootstrap.min.js

22 ms

bootstrap-accessibility.min.js

bootstrap-accessibility.min.js

483 ms

bootstrap-datepicker.js

bootstrap-datepicker.js

562 ms

jquery.multi-select-0.9.11.min.js

jquery.multi-select-0.9.11.min.js

491 ms

jquery.knob.1.2.8.min.js

jquery.knob.1.2.8.min.js

561 ms

typeahead.bundle-0.10.2.min.js

typeahead.bundle-0.10.2.min.js

690 ms

jquery.pulsate.min.js

jquery.pulsate.min.js

570 ms

common-scripts.js

common-scripts.js

634 ms

customlogo.jpg

customlogo.jpg

82 ms

custombanner.jpg

custombanner.jpg

325 ms

OpenSans-Regular.woff

OpenSans-Regular.woff

86 ms

OpenSans-Light.woff

OpenSans-Light.woff

86 ms

OpenSans-Semibold.woff

OpenSans-Semibold.woff

89 ms

OpenSans-Bold.woff

OpenSans-Bold.woff

89 ms

OpenSans-Extrabold.woff

OpenSans-Extrabold.woff

140 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

224 ms

print.css

print.css

82 ms

Accessibility Review

radboud.sona-systems.com accessibility score

98

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.

Best Practices

radboud.sona-systems.com best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

radboud.sona-systems.com SEO score

77

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

High

Page is blocked from indexing

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Radboud.sona-systems.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Radboud.sona-systems.com 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

radboud.sona-systems.com

Open Graph description is not detected on the main page of Radboud Sona System S. 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: