Tools & Wizards About Us
duo.be screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

duo.be

make it fly is nu Dynamate | Digitale experts in web, apps… | Dynamate

Page Load Speed

3.5 sec in total

First Response

280 ms

Resources Loaded

2.6 sec

Page Rendered

619 ms

duo.be screenshot

About Website

Click here to check amazing Duo content for Belgium. Otherwise, check out these important facts you probably never knew about duo.be

De expertise van make it fly leeft verder binnen Dynamate. Je vindt er dezelfde mensen, dezelfde kwaliteit en een uitgebreider digitaal en IT-aanbod.

Visit duo.be

Key Findings

We analyzed Duo.be page load time and found that the first response time was 280 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

duo.be performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

49/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value1,830 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value13.3 s

12/100

10%

Network Requests Diagram

duo.be

280 ms

nl

105 ms

txo6vdu.js

391 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

83 ms

css_ytHsofa1Nb6YIMGlVlsJLsTPtPSP4CP8OuMvNOYfmbs.css

164 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 69% of them (46 requests) were addressed to the original Duo.be, 7% (5 requests) were made to Ssl.google-analytics.com and 6% (4 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Duo.be.

Page Optimization Overview & Recommendations

Page size can be reduced by 968.3 kB (30%)

Content Size

3.2 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Duo.be main page is 3.2 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. 60% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 32.3 kB

  • Original 42.0 kB
  • After minification 41.2 kB
  • After compression 9.8 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. 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 32.3 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 83.5 kB

  • Original 2.0 MB
  • After minification 1.9 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. Duo images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 518.2 kB

  • Original 728.8 kB
  • After minification 626.6 kB
  • After compression 210.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 518.2 kB or 71% of the original size.

CSS Optimization

-89%

Potential reduce by 334.4 kB

  • Original 375.9 kB
  • After minification 375.2 kB
  • After compression 41.6 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. Duo.be needs all CSS files to be minified and compressed as it can save up to 334.4 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (58%)

Requests Now

57

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

duo.be

duo.be

280 ms

nl

nl

105 ms

txo6vdu.js

txo6vdu.js

391 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

83 ms

css_ytHsofa1Nb6YIMGlVlsJLsTPtPSP4CP8OuMvNOYfmbs.css

css_ytHsofa1Nb6YIMGlVlsJLsTPtPSP4CP8OuMvNOYfmbs.css

164 ms

css_PYMmZQeEAYV6XlRpJvVZNY2khqtM3tz_H9hq1625Wvs.css

css_PYMmZQeEAYV6XlRpJvVZNY2khqtM3tz_H9hq1625Wvs.css

165 ms

css_FghLf8dQyXJj7x7tbOI06hpIDCvBqtEcZ3V0BhUkccQ.css

css_FghLf8dQyXJj7x7tbOI06hpIDCvBqtEcZ3V0BhUkccQ.css

247 ms

modernizr.min.js

modernizr.min.js

169 ms

js_6TAnF117heNLUe_NSA6QrMWPUlMbDthN85wxrI4UFUM.js

js_6TAnF117heNLUe_NSA6QrMWPUlMbDthN85wxrI4UFUM.js

168 ms

js_UWQINlriydSoeSiGQxToOUdv493zEa7dpsXC1OtYlZU.js

js_UWQINlriydSoeSiGQxToOUdv493zEa7dpsXC1OtYlZU.js

246 ms

js_AvXBF4hW1ueA5lZlZYvMkVeCxuume1zib4Oht3XEA74.js

js_AvXBF4hW1ueA5lZlZYvMkVeCxuume1zib4Oht3XEA74.js

436 ms

js_bFyGQFXE3C0Ko6cRGEDFsqgHS3xK-OIc2LN9KS3LlFw.js

js_bFyGQFXE3C0Ko6cRGEDFsqgHS3xK-OIc2LN9KS3LlFw.js

246 ms

js_dePFdIsvVRDRx6O04vx5BbGNvKoc6cnhYc8B2RXt0VQ.js

js_dePFdIsvVRDRx6O04vx5BbGNvKoc6cnhYc8B2RXt0VQ.js

328 ms

logo-duo-nv.png

logo-duo-nv.png

141 ms

duo_bargehuis_01_0.jpg

duo_bargehuis_01_0.jpg

904 ms

icon-duo-marketing_0_0.png

icon-duo-marketing_0_0.png

141 ms

icon-duo-development_0.png

icon-duo-development_0.png

184 ms

icon-duo-mobile_0.png

icon-duo-mobile_0.png

185 ms

logo-floralux-HR_1.png

logo-floralux-HR_1.png

215 ms

logo-duo-nascom.png

logo-duo-nascom.png

214 ms

napoleon_games_0.jpg

napoleon_games_0.jpg

347 ms

logo-winsol-hr_0.png

logo-winsol-hr_0.png

263 ms

gtm.js

gtm.js

101 ms

123387762

123387762

152 ms

icon-duo-arrow-down.png

icon-duo-arrow-down.png

250 ms

icon-duo-arrow-right-green.png

icon-duo-arrow-right-green.png

324 ms

logo-floralux-HR_1.png

logo-floralux-HR_1.png

452 ms

icon-duo-arrow-right-brown.png

icon-duo-arrow-right-brown.png

332 ms

icon-duo-arrow-right-white.png

icon-duo-arrow-right-white.png

333 ms

icon-sm-facebook.png

icon-sm-facebook.png

373 ms

icon-sm-twitter.png

icon-sm-twitter.png

413 ms

icon-sm-linkedin.png

icon-sm-linkedin.png

414 ms

logo-duo-nv-dark.png

logo-duo-nv-dark.png

417 ms

www.duo.be

www.duo.be

86 ms

2a5cfbfe-2f93-4ce5-afc7-fe85aec1c48e.js

2a5cfbfe-2f93-4ce5-afc7-fe85aec1c48e.js

60 ms

OpenSans-Regular-webfont.woff

OpenSans-Regular-webfont.woff

425 ms

OpenSans-Semibold-webfont.woff

OpenSans-Semibold-webfont.woff

545 ms

OpenSans-Light-webfont.woff

OpenSans-Light-webfont.woff

552 ms

OpenSans-Bold-webfont.woff

OpenSans-Bold-webfont.woff

468 ms

OpenSans-ExtraBold-webfont.woff

OpenSans-ExtraBold-webfont.woff

502 ms

duo.woff

duo.woff

509 ms

floralux-sfeerbeeld-top_1.jpg

floralux-sfeerbeeld-top_1.jpg

1058 ms

duo_2016_website.jpg

duo_2016_website.jpg

932 ms

Napoleon%20Games%20-%20Buffalos%20-79_0.jpg

Napoleon%20Games%20-%20Buffalos%20-79_0.jpg

1014 ms

Corradi%20Dupre%20Evergem022_1.jpg

Corradi%20Dupre%20Evergem022_1.jpg

1134 ms

duo_bargehuis_06.jpg

duo_bargehuis_06.jpg

933 ms

analytics.js

analytics.js

19 ms

fbevents.js

fbevents.js

18 ms

zq9Zl2N6NbeVfXmiVSNp5s8DseuCgN0cDqog2H1zVOMffVKWEN32IgCjMKM2HMItgI4MFhFqjhJXFe48FeIaZeJt52SaZcZyFAw3w2MajRyqZ26hFAJDjc4RwD6D52wUZc9kZAIUFDicFRJkFQiy5QIowb.woff

zq9Zl2N6NbeVfXmiVSNp5s8DseuCgN0cDqog2H1zVOMffVKWEN32IgCjMKM2HMItgI4MFhFqjhJXFe48FeIaZeJt52SaZcZyFAw3w2MajRyqZ26hFAJDjc4RwD6D52wUZc9kZAIUFDicFRJkFQiy5QIowb.woff

77 ms

OVedTWFOHmzb2inTr3LAiWC85YJDn0toENSHJpXc89bffVPWEN32IgCjMKM2HMItMX4MFhFqjhJXFe48FeIaZeJt52SaZcZyFAw3w2MajRyqZ26hFAJDjc4RwD6D52wUZc9kZAIUFDicFRJkFQiy5QIowb.woff

OVedTWFOHmzb2inTr3LAiWC85YJDn0toENSHJpXc89bffVPWEN32IgCjMKM2HMItMX4MFhFqjhJXFe48FeIaZeJt52SaZcZyFAw3w2MajRyqZ26hFAJDjc4RwD6D52wUZc9kZAIUFDicFRJkFQiy5QIowb.woff

914 ms

p.gif

p.gif

142 ms

player.js

player.js

128 ms

player.css

player.css

107 ms

ga.js

ga.js

69 ms

vuid.min.js

vuid.min.js

122 ms

collect

collect

18 ms

82 ms

__utm.gif

__utm.gif

30 ms

__utm.gif

__utm.gif

4 ms

__utm.gif

__utm.gif

26 ms

proxy.html

proxy.html

23 ms

__utm.gif

__utm.gif

3 ms

logo-duo-nascom.png

logo-duo-nascom.png

83 ms

napoleon_games_0.jpg

napoleon_games_0.jpg

83 ms

logo-winsol-hr_0.png

logo-winsol-hr_0.png

84 ms

icon-duo-arrow-slider-left.png

icon-duo-arrow-slider-left.png

85 ms

icon-duo-arrow-slider-right.png

icon-duo-arrow-slider-right.png

85 ms

Accessibility Review

duo.be 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

duo.be best practices score

75

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

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

duo.be SEO score

92

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

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

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

duo.be

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