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vredenburg.nl screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

vredenburg.nl

Welkom bij TivoliVredenburg in Utrecht

Page Load Speed

13.3 sec in total

First Response

269 ms

Resources Loaded

12.3 sec

Page Rendered

719 ms

vredenburg.nl screenshot

About Website

Welcome to vredenburg.nl homepage info - get ready to check Vredenburg best content right away, or after learning these important things about vredenburg.nl

In TivoliVredenburg komen alle muzieksoorten aan bod onder één dak. Met zes unieke zalen en meerdere horecavoorzieningen is het een huis van en voor iedereen.

Visit vredenburg.nl

Key Findings

We analyzed Vredenburg.nl page load time and found that the first response time was 269 ms and then it took 13.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

vredenburg.nl performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value15.4 s

0/100

25%

SI (Speed Index)

Value18.4 s

0/100

10%

TBT (Total Blocking Time)

Value16,300 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value34.0 s

0/100

10%

Network Requests Diagram

vredenburg.nl

269 ms

www.tivolivredenburg.nl

466 ms

130 ms

1615 ms

main.scss

230 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Vredenburg.nl, 27% (21 requests) were made to Tivolivredenburg.nl and 20% (16 requests) were made to Cdns-files.dzcdn.net. The less responsive or slowest element that took the longest time to load (9.5 sec) relates to the external source Tivolivredenburg.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (57%)

Content Size

3.1 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vredenburg.nl main page is 3.1 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 115.1 kB

  • Original 127.7 kB
  • After minification 86.6 kB
  • After compression 12.6 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. This page needs HTML code to be minified as it can gain 41.1 kB, which is 32% 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 115.1 kB or 90% of the original size.

Image Optimization

-3%

Potential reduce by 7.4 kB

  • Original 216.6 kB
  • After minification 209.2 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. Vredenburg images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 1.3 MB

  • Original 2.3 MB
  • After minification 2.3 MB
  • After compression 1.0 MB

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 1.3 MB or 56% of the original size.

CSS Optimization

-84%

Potential reduce by 324.3 kB

  • Original 385.9 kB
  • After minification 363.2 kB
  • After compression 61.6 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. Vredenburg.nl needs all CSS files to be minified and compressed as it can save up to 324.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (61%)

Requests Now

64

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vredenburg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vredenburg.nl

vredenburg.nl

269 ms

www.tivolivredenburg.nl

www.tivolivredenburg.nl

466 ms

130 ms

1615 ms

main.scss

main.scss

230 ms

zpq5yvs.js

zpq5yvs.js

209 ms

custom.modernizr.js

custom.modernizr.js

326 ms

g=js

g=js

1605 ms

3

3

87 ms

fbds.js

fbds.js

104 ms

img8211.1100x825.png

img8211.1100x825.png

9478 ms

Uw5w-Mar9Wz-YD_YIBppzZ4VJePwzWfuffz9CBboz5qffOWCggMWeMI6MK6g5Mb.eot

Uw5w-Mar9Wz-YD_YIBppzZ4VJePwzWfuffz9CBboz5qffOWCggMWeMI6MK6g5Mb.eot

240 ms

fYO_ozdfQyGe58H6vTaeV8hr9YUVwSCbfeji0I-IxTMffHDCggMWeMI6MK6g5MS.eot

fYO_ozdfQyGe58H6vTaeV8hr9YUVwSCbfeji0I-IxTMffHDCggMWeMI6MK6g5MS.eot

335 ms

tv.woff

tv.woff

84 ms

iconbar.woff

iconbar.woff

166 ms

15 ms

analytics.js

analytics.js

98 ms

fbevents.js

fbevents.js

90 ms

dz.js

dz.js

555 ms

iframe_api

iframe_api

65 ms

22 ms

collect

collect

6 ms

collect

collect

62 ms

www-widgetapi.js

www-widgetapi.js

22 ms

ga-audiences

ga-audiences

50 ms

img8825.180x150.jpg

img8825.180x150.jpg

163 ms

img10135.180x150.jpg

img10135.180x150.jpg

165 ms

img9013.180x150.jpg

img9013.180x150.jpg

168 ms

img4798.180x150.jpg

img4798.180x150.jpg

324 ms

img3946.180x150.jpg

img3946.180x150.jpg

325 ms

img9771.180x150.jpg

img9771.180x150.jpg

247 ms

img9881.180x150.png

img9881.180x150.png

636 ms

img9853.180x150.jpg

img9853.180x150.jpg

251 ms

img8481.180x150.jpg

img8481.180x150.jpg

330 ms

img11025.180x150.jpg

img11025.180x150.jpg

414 ms

img3860.180x150.jpg

img3860.180x150.jpg

412 ms

img9173.180x150.jpg

img9173.180x150.jpg

486 ms

soon

soon

59 ms

bootstrap-82a725e39871d9e49ddc8d401cc8a844.css

bootstrap-82a725e39871d9e49ddc8d401cc8a844.css

98 ms

deezer-a6ff3eaa0d69a49d40057ba6a46d756e.css

deezer-a6ff3eaa0d69a49d40057ba6a46d756e.css

113 ms

index-37ad7fc6844600110163e2867fff6837.css

index-37ad7fc6844600110163e2867fff6837.css

92 ms

external-599b8f583eb05a05118803b29733d2ba.js

external-599b8f583eb05a05118803b29733d2ba.js

129 ms

en_US-8e1becc07fd8b2c68694533cde4ca7a5.js

en_US-8e1becc07fd8b2c68694533cde4ca7a5.js

90 ms

core-d574be7cd779150cbaa5d3661b52a4ce.js

core-d574be7cd779150cbaa5d3661b52a4ce.js

211 ms

home-18794ecda028393c3feb0b115c729701.js

home-18794ecda028393c3feb0b115c729701.js

125 ms

visual_phone.edbc6f84e8d820c5a16ab88e86d0a870.jpg

visual_phone.edbc6f84e8d820c5a16ab88e86d0a870.jpg

22 ms

26x0-none-90-1-1.png

26x0-none-90-1-1.png

114 ms

logos-sf988535bc9.png

logos-sf988535bc9.png

46 ms

bose.png

bose.png

11 ms

sonos.png

sonos.png

11 ms

ga.js

ga.js

128 ms

client:plusone.js

client:plusone.js

128 ms

open-sans-light.b733e7f8e4cee90600a6b344b712834c.woff

open-sans-light.b733e7f8e4cee90600a6b344b712834c.woff

87 ms

open-sans.aba4b4c53579deb54f3fd349a21abce3.woff

open-sans.aba4b4c53579deb54f3fd349a21abce3.woff

123 ms

open-sans-semibold.4691b98883f93639ccb6f3ccbb80dada.woff

open-sans-semibold.4691b98883f93639ccb6f3ccbb80dada.woff

34 ms

open-sans-bold.d790d2580f8e2c9da6dc54f3b7085c40.woff

open-sans-bold.d790d2580f8e2c9da6dc54f3b7085c40.woff

83 ms

deezer-icons.c693dd0770b9f622f6446736a57605cb.woff

deezer-icons.c693dd0770b9f622f6446736a57605cb.woff

33 ms

vb.js

vb.js

38 ms

gtm.js

gtm.js

158 ms

mixpanel-2.1.min.js

mixpanel-2.1.min.js

157 ms

108 ms

xd_arbiter.php

xd_arbiter.php

89 ms

__utm.gif

__utm.gif

70 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

51 ms

conversion_async.js

conversion_async.js

115 ms

quant.js

quant.js

116 ms

112 ms

__utm.gif

__utm.gif

82 ms

59 ms

postmessageRelay

postmessageRelay

56 ms

22 ms

42 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

23 ms

rpc:shindig_random.js

rpc:shindig_random.js

36 ms

pixel;r=134560029;a=p-hswz2L2db7f_T;labels=_fp.event.Homepage;fpan=1;fpa=P0-363239085-1458281358266;ns=1;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1458281358266;tzo=-180;ref=https%3A%2F%2Fwww.tivolivredenburg.nl%2Fnl%2F;url=https%3A%2F%2Fwww.deezer.com%2Fsoon;ogl=site_name.Deezer

pixel;r=134560029;a=p-hswz2L2db7f_T;labels=_fp.event.Homepage;fpan=1;fpa=P0-363239085-1458281358266;ns=1;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1458281358266;tzo=-180;ref=https%3A%2F%2Fwww.tivolivredenburg.nl%2Fnl%2F;url=https%3A%2F%2Fwww.deezer.com%2Fsoon;ogl=site_name.Deezer

30 ms

28 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

6 ms

2 ms

xd_arbiter.php

xd_arbiter.php

7 ms

Accessibility Review

vredenburg.nl accessibility score

85

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

vredenburg.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

Page has valid source maps

SEO Factors

vredenburg.nl SEO score

86

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Vredenburg.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 Vredenburg.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

vredenburg.nl

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