Tools & Wizards About Us
colorlineferries.nl screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

colorlineferries.nl

Overtochten naar Noorwegen met Color Line

Page Load Speed

3.2 sec in total

First Response

551 ms

Resources Loaded

2.2 sec

Page Rendered

439 ms

colorlineferries.nl screenshot

About Website

Click here to check amazing Color Line Ferries content for Netherlands. Otherwise, check out these important facts you probably never knew about colorlineferries.nl

In 3,5 uur met de auto naar Noorwegen. Color Line vezorgt dagelijkse overtochten vanuit Hirtshals en Kiel.

Visit colorlineferries.nl

Key Findings

We analyzed Colorlineferries.nl page load time and found that the first response time was 551 ms and then it took 2.6 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

colorlineferries.nl performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

www.colorline.nl

551 ms

uc.js

121 ms

jquery.min.js

28 ms

mapbox.js

31 ms

main.min.css

244 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Colorlineferries.nl, 8% (2 requests) were made to Api.mapbox.com and 4% (1 request) were made to Policy.app.cookieinformation.com. The less responsive or slowest element that took the longest time to load (551 ms) relates to the external source Colorline.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.1 kB (21%)

Content Size

233.8 kB

After Optimization

183.7 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Colorlineferries.nl main page is 233.8 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. 20% of websites need less resources to load. Javascripts take 142.3 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 49.6 kB

  • Original 57.0 kB
  • After minification 36.4 kB
  • After compression 7.4 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 20.6 kB, which is 36% 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 49.6 kB or 87% of the original size.

JavaScript Optimization

-0%

Potential reduce by 12 B

  • Original 142.3 kB
  • After minification 142.3 kB
  • After compression 142.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 479 B

  • Original 34.5 kB
  • After minification 34.5 kB
  • After compression 34.1 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. Colorlineferries.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (61%)

Requests Now

18

After Optimization

7

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Color Line Ferries. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.colorline.nl

www.colorline.nl

551 ms

uc.js

uc.js

121 ms

jquery.min.js

jquery.min.js

28 ms

mapbox.js

mapbox.js

31 ms

main.min.css

main.min.css

244 ms

mapbox.css

mapbox.css

30 ms

main.min.js

main.min.js

476 ms

gtm.js

gtm.js

92 ms

Color_Line_color_horizontal.svg

Color_Line_color_horizontal.svg

129 ms

sailings-exclamation-sign-icon.svg

sailings-exclamation-sign-icon.svg

99 ms

clock.svg

clock.svg

198 ms

ship-right.svg

ship-right.svg

243 ms

plus.svg

plus.svg

289 ms

hotels.svg

hotels.svg

291 ms

return.svg

return.svg

287 ms

angle-right.svg

angle-right.svg

287 ms

facebook.svg

facebook.svg

295 ms

youtube.svg

youtube.svg

356 ms

instagram.svg

instagram.svg

383 ms

Interstate%20Light.woff

Interstate%20Light.woff

386 ms

Interstate%20Regular.woff

Interstate%20Regular.woff

386 ms

Interstate%20Bold.woff

Interstate%20Bold.woff

387 ms

Interstate%20Black.woff

Interstate%20Black.woff

301 ms

colorline-awesome.woff

colorline-awesome.woff

378 ms

Accessibility Review

colorlineferries.nl accessibility score

89

Accessibility Issues

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

Buttons do not have an accessible name

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

colorlineferries.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

colorlineferries.nl 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

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 Colorlineferries.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 Colorlineferries.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

colorlineferries.nl

Open Graph description is not detected on the main page of Color Line Ferries. 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: