Tools & Wizards About Us
dudok.nl screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

dudok.nl

Bij Dudok kunt u lekker eten en drinken, voor ontbijt, lunch of diner.

Page Load Speed

6.7 sec in total

First Response

450 ms

Resources Loaded

4.4 sec

Page Rendered

1.8 sec

dudok.nl screenshot

About Website

Visit dudok.nl now to see the best up-to-date Dudok content for Netherlands and also check out these interesting facts you probably never knew about dudok.nl

Dudok staat voor lekker eten. Reserveer bij een van onze locaties of bestel taart bij onze patisserie.

Visit dudok.nl

Key Findings

We analyzed Dudok.nl page load time and found that the first response time was 450 ms and then it took 6.2 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

dudok.nl performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value1,150 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

dudok.nl

450 ms

layout.css

93 ms

text.css

188 ms

cssmenus.css

181 ms

windows.css

188 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 70% of them (64 requests) were addressed to the original Dudok.nl, 9% (8 requests) were made to Apis.google.com and 3% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Dudok.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 831.3 kB (18%)

Content Size

4.6 MB

After Optimization

3.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dudok.nl main page is 4.6 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. 65% of websites need less resources to load. Images take 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 98.0 kB

  • Original 124.6 kB
  • After minification 121.6 kB
  • After compression 26.6 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 98.0 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 171.6 kB

  • Original 3.7 MB
  • After minification 3.5 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. Dudok images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 514.4 kB

  • Original 682.3 kB
  • After minification 587.9 kB
  • After compression 167.9 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 514.4 kB or 75% of the original size.

CSS Optimization

-85%

Potential reduce by 47.3 kB

  • Original 55.4 kB
  • After minification 39.3 kB
  • After compression 8.1 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. Dudok.nl needs all CSS files to be minified and compressed as it can save up to 47.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (55%)

Requests Now

88

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dudok. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dudok.nl

dudok.nl

450 ms

layout.css

layout.css

93 ms

text.css

text.css

188 ms

cssmenus.css

cssmenus.css

181 ms

windows.css

windows.css

188 ms

modalwindows.css

modalwindows.css

188 ms

include.js

include.js

190 ms

xajax_core.js

xajax_core.js

196 ms

css

css

26 ms

css

css

39 ms

css

css

47 ms

submenu.js

submenu.js

267 ms

pinit.js

pinit.js

7 ms

postmessage.js

postmessage.js

265 ms

functions.js

functions.js

95 ms

windows.js

windows.js

92 ms

modalwindows.js

modalwindows.js

91 ms

prototype.js

prototype.js

188 ms

scriptaculous.js

scriptaculous.js

168 ms

effects.js

effects.js

171 ms

flash.js

flash.js

180 ms

imageswap.js

imageswap.js

181 ms

position.js

position.js

183 ms

textsizer.js

textsizer.js

256 ms

lightwindow.js

lightwindow.js

264 ms

dmenu.js

dmenu.js

273 ms

PinExt.png

PinExt.png

6 ms

logo.png

logo.png

175 ms

line_dotted_sidebar.png

line_dotted_sidebar.png

178 ms

BANNER-LINKS-APPELTAART_ROOD.jpg

BANNER-LINKS-APPELTAART_ROOD.jpg

276 ms

BANNERTJES-LINKS_HIGHT-TEA.jpg

BANNERTJES-LINKS_HIGHT-TEA.jpg

351 ms

line_dotted_sidebar.png

line_dotted_sidebar.png

262 ms

schrijfjeinvoordenieuwsbrief.png

schrijfjeinvoordenieuwsbrief.png

270 ms

volgons.png

volgons.png

271 ms

line_dotted.png

line_dotted.png

273 ms

Libelle-Nieuwscafe.jpg

Libelle-Nieuwscafe.jpg

441 ms

Dudok_byMashaBakker-5865.jpg

Dudok_byMashaBakker-5865.jpg

3037 ms

WATERIJS_THUMB_copy.jpg

WATERIJS_THUMB_copy.jpg

1094 ms

Poster.jpg

Poster.jpg

820 ms

KERST-IN-DUDOK-2015_def-web.jpg

KERST-IN-DUDOK-2015_def-web.jpg

648 ms

dudok_keuken.jpg

dudok_keuken.jpg

885 ms

A2-poster_-_DUDOK_-_2015_24_OKT.JPG

A2-poster_-_DUDOK_-_2015_24_OKT.JPG

892 ms

spinoza.jpg

spinoza.jpg

925 ms

dudok_bar.jpg

dudok_bar.jpg

917 ms

reserveren_algemeen.png

reserveren_algemeen.png

794 ms

reserveren_vestigingen.png

reserveren_vestigingen.png

799 ms

rightmenu_bg.png

rightmenu_bg.png

820 ms

aanmelden_bg.png

aanmelden_bg.png

871 ms

facebook.png

facebook.png

877 ms

twitter.png

twitter.png

910 ms

bYbkq2nU2TSx4SwFbz5sCInF5uFdDttMLvmWuJdhhgs.ttf

bYbkq2nU2TSx4SwFbz5sCInF5uFdDttMLvmWuJdhhgs.ttf

11 ms

all.js

all.js

176 ms

hodw9daEKChGhHiFVuhi_g.ttf

hodw9daEKChGhHiFVuhi_g.ttf

25 ms

widgets.js

widgets.js

18 ms

plusone.js

plusone.js

67 ms

bg_container.png

bg_container.png

948 ms

footer.png

footer.png

959 ms

pinit_main.js

pinit_main.js

28 ms

slideshow_banner.php

slideshow_banner.php

972 ms

count.json

count.json

91 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

13 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

33 ms

fastbutton

fastbutton

73 ms

postmessageRelay

postmessageRelay

88 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

56 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

56 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

70 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

29 ms

rpc:shindig_random.js

rpc:shindig_random.js

31 ms

182 ms

xd_arbiter.php

xd_arbiter.php

144 ms

xd_arbiter.php

xd_arbiter.php

273 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

11 ms

mootools-core-1.3.1-yc.js

mootools-core-1.3.1-yc.js

102 ms

mootools-more-1.3.1.1-yc.js

mootools-more-1.3.1.1-yc.js

129 ms

Loop.js

Loop.js

91 ms

SlideShow.js

SlideShow.js

92 ms

Wallpaper.js

Wallpaper.js

92 ms

Wallpaper.Fill.js

Wallpaper.Fill.js

189 ms

001.jpg

001.jpg

411 ms

001_HEADER_MOSSELPAN.jpg

001_HEADER_MOSSELPAN.jpg

420 ms

002_HEADER_KOPJE_TAART.jpg

002_HEADER_KOPJE_TAART.jpg

424 ms

003_HEADER_PAND_ARNHEM.jpg

003_HEADER_PAND_ARNHEM.jpg

432 ms

004_HEADER_TERRAS.jpg

004_HEADER_TERRAS.jpg

644 ms

HEADER_KLOK.jpg

HEADER_KLOK.jpg

656 ms

HEADER_KOK.jpg

HEADER_KOK.jpg

657 ms

HEADER_MUNT_THEE.jpg

HEADER_MUNT_THEE.jpg

670 ms

icon_download.gif

icon_download.gif

91 ms

black-70.png

black-70.png

182 ms

like.php

like.php

117 ms

qeKvIRsJabD.js

qeKvIRsJabD.js

301 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

340 ms

Accessibility Review

dudok.nl accessibility score

79

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

dudok.nl 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

dudok.nl SEO score

91

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 Dudok.nl 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 Dudok.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

dudok.nl

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