Tools & Wizards About Us
rederij-doeksen.nl screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

rederij-doeksen.nl

Rederij Doeksen - De veerdienst tussen Harlingen, Terschelling en Vlieland

Page Load Speed

2.5 sec in total

First Response

548 ms

Resources Loaded

1.8 sec

Page Rendered

172 ms

rederij-doeksen.nl screenshot

About Website

Welcome to rederij-doeksen.nl homepage info - get ready to check Rederij Doeksen best content for Netherlands right away, or after learning these important things about rederij-doeksen.nl

Rederij Doeksen verzorgt uw overtocht per veerdienst en sneldienst van Harlingen naar de Waddeneilanden Terschelling en Vlieland. Uw vakantie begint al aan boord!

Visit rederij-doeksen.nl

Key Findings

We analyzed Rederij-doeksen.nl page load time and found that the first response time was 548 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

rederij-doeksen.nl performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

58/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value6.7 s

37/100

10%

TBT (Total Blocking Time)

Value1,580 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.4

25/100

15%

TTI (Time to Interactive)

Value11.0 s

20/100

10%

Network Requests Diagram

rederij-doeksen.nl

548 ms

site.css

167 ms

extra.css

169 ms

calendar-blue.css

169 ms

bookings.css

170 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 71% of them (29 requests) were addressed to the original Rederij-doeksen.nl, 5% (2 requests) were made to Google-analytics.com and 5% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (552 ms) belongs to the original domain Rederij-doeksen.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 524.3 kB (58%)

Content Size

900.8 kB

After Optimization

376.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rederij-doeksen.nl main page is 900.8 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. 35% of websites need less resources to load. Javascripts take 607.9 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 29.8 kB

  • Original 40.0 kB
  • After minification 39.7 kB
  • After compression 10.3 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 29.8 kB or 74% of the original size.

Image Optimization

-6%

Potential reduce by 9.3 kB

  • Original 148.2 kB
  • After minification 138.9 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. Rederij Doeksen images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 417.9 kB

  • Original 607.9 kB
  • After minification 591.5 kB
  • After compression 190.0 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 417.9 kB or 69% of the original size.

CSS Optimization

-64%

Potential reduce by 67.4 kB

  • Original 104.7 kB
  • After minification 93.3 kB
  • After compression 37.3 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. Rederij-doeksen.nl needs all CSS files to be minified and compressed as it can save up to 67.4 kB or 64% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (70%)

Requests Now

40

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rederij Doeksen. 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

rederij-doeksen.nl

rederij-doeksen.nl

548 ms

site.css

site.css

167 ms

extra.css

extra.css

169 ms

calendar-blue.css

calendar-blue.css

169 ms

bookings.css

bookings.css

170 ms

customers.css

customers.css

170 ms

cookiecuttr.css

cookiecuttr.css

171 ms

inspectlet.js

inspectlet.js

254 ms

modernizr-2.0.6.min.js

modernizr-2.0.6.min.js

255 ms

jquery.js

jquery.js

340 ms

jquery.cookie.js

jquery.cookie.js

265 ms

jquery.cookiecuttr.js

jquery.cookiecuttr.js

266 ms

top_up.js

top_up.js

352 ms

doeksen_packaged.js

doeksen_packaged.js

503 ms

calendar_nl_packaged.js

calendar_nl_packaged.js

355 ms

ga.js

ga.js

48 ms

calendar_selector.jpg

calendar_selector.jpg

88 ms

map.gif

map.gif

86 ms

banner_winterdagarrangement_2015.jpg

banner_winterdagarrangement_2015.jpg

250 ms

bw____.png

bw____.png

88 ms

sdk.js

sdk.js

268 ms

Nieuwe_huisstijlfoto_959x200____12_1_2016.jpg

Nieuwe_huisstijlfoto_959x200____12_1_2016.jpg

536 ms

instagram.gif

instagram.gif

86 ms

pinterest.gif

pinterest.gif

87 ms

youtube.gif

youtube.gif

192 ms

googleplus.gif

googleplus.gif

191 ms

facebook.gif

facebook.gif

191 ms

twitter.gif

twitter.gif

191 ms

blogbook.gif

blogbook.gif

191 ms

bg_login_repeat.png

bg_login_repeat.png

287 ms

conversion.js

conversion.js

33 ms

social_media_messages

social_media_messages

552 ms

loader.gif

loader.gif

265 ms

__utm.gif

__utm.gif

12 ms

126 ms

xd_arbiter.php

xd_arbiter.php

210 ms

xd_arbiter.php

xd_arbiter.php

428 ms

nr-885.min.js

nr-885.min.js

61 ms

inspectlet.js

inspectlet.js

17 ms

116251023

116251023

21 ms

5a2d167c24

5a2d167c24

52 ms

Accessibility Review

rederij-doeksen.nl accessibility score

79

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

[id] attributes on active, focusable elements are not unique

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

rederij-doeksen.nl best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

rederij-doeksen.nl SEO score

88

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rederij-doeksen.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch 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 Rederij-doeksen.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

rederij-doeksen.nl

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