Tools & Wizards About Us
zonzoo.nl screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    73% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

zonzoo.nl

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Page Load Speed

5.7 sec in total

First Response

967 ms

Resources Loaded

4.5 sec

Page Rendered

186 ms

zonzoo.nl screenshot

About Website

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

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Visit zonzoo.nl

Key Findings

We analyzed Zonzoo.nl page load time and found that the first response time was 967 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

zonzoo.nl performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value4.3 s

75/100

10%

TBT (Total Blocking Time)

Value430 ms

64/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value6.8 s

56/100

10%

Network Requests Diagram

zonzoo.nl

967 ms

page.css

360 ms

jquery.fancybox-1.3.4.css

271 ms

jquery-1.5.2.js

575 ms

modernizr.custom.65540.js

364 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 56% of them (45 requests) were addressed to the original Zonzoo.nl, 15% (12 requests) were made to Fonebank.com and 10% (8 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (3.2 sec) relates to the external source Fonebank.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 401.6 kB (43%)

Content Size

936.8 kB

After Optimization

535.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zonzoo.nl main page is 936.8 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. 40% of websites need less resources to load. Images take 427.6 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 25.6 kB

  • Original 34.8 kB
  • After minification 31.7 kB
  • After compression 9.2 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 25.6 kB or 74% of the original size.

Image Optimization

-5%

Potential reduce by 20.0 kB

  • Original 427.6 kB
  • After minification 407.6 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. Zonzoo images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 311.6 kB

  • Original 420.2 kB
  • After minification 275.7 kB
  • After compression 108.6 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 311.6 kB or 74% of the original size.

CSS Optimization

-82%

Potential reduce by 44.4 kB

  • Original 54.2 kB
  • After minification 48.9 kB
  • After compression 9.8 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. Zonzoo.nl needs all CSS files to be minified and compressed as it can save up to 44.4 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (59%)

Requests Now

75

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zonzoo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zonzoo.nl

zonzoo.nl

967 ms

page.css

page.css

360 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

271 ms

jquery-1.5.2.js

jquery-1.5.2.js

575 ms

modernizr.custom.65540.js

modernizr.custom.65540.js

364 ms

jquery.cycle.lite.1.3.js

jquery.cycle.lite.1.3.js

271 ms

jquery.fancybox-1.3.4.js

jquery.fancybox-1.3.4.js

348 ms

jquery.easing-1.3.js

jquery.easing-1.3.js

362 ms

jquery.validate-1.8.0.js

jquery.validate-1.8.0.js

367 ms

i18n_nl.js

i18n_nl.js

354 ms

page.js

page.js

365 ms

jquery-ui.autocomplete.js

jquery-ui.autocomplete.js

454 ms

conversion.js

conversion.js

21 ms

iphone-5-16gb.png

iphone-5-16gb.png

2228 ms

logo.png

logo.png

105 ms

headermenu.png

headermenu.png

106 ms

headermenuitem-selected.png

headermenuitem-selected.png

106 ms

headermenuitem.png

headermenuitem.png

107 ms

main.png

main.png

107 ms

searchinput.png

searchinput.png

107 ms

searchbutton.png

searchbutton.png

202 ms

slidebg.png

slidebg.png

290 ms

zonzoo_nl_front_pic.png

zonzoo_nl_front_pic.png

1499 ms

brand-htc.png

brand-htc.png

790 ms

brand-nokia.png

brand-nokia.png

797 ms

brand-samsung.png

brand-samsung.png

282 ms

brand-apple.png

brand-apple.png

289 ms

brand-sonyericsson.png

brand-sonyericsson.png

355 ms

brand-blackberry.png

brand-blackberry.png

378 ms

brand-lg.png

brand-lg.png

378 ms

steps.png

steps.png

446 ms

front-step1.png

front-step1.png

477 ms

front-step2.png

front-step2.png

467 ms

front-step3.png

front-step3.png

531 ms

be.png

be.png

555 ms

de.png

de.png

565 ms

es.png

es.png

620 ms

it.png

it.png

643 ms

nl.png

nl.png

652 ms

pt.png

pt.png

707 ms

at.png

at.png

731 ms

gb.png

gb.png

741 ms

environment.png

environment.png

882 ms

star_100.png

star_100.png

818 ms

star_75.png

star_75.png

828 ms

iphone-5s.png

iphone-5s.png

2303 ms

iphone-6-16gb.png

iphone-6-16gb.png

2308 ms

iphone-6-64.png

iphone-6-64.png

3165 ms

htc-m8.png

htc-m8.png

2397 ms

htc-m9.png

htc-m9.png

2396 ms

sony-xperia-z3.jpg

sony-xperia-z3.jpg

2305 ms

apple-ipad-air.jpg

apple-ipad-air.jpg

2392 ms

apple-iphone-6-3.jpg

apple-iphone-6-3.jpg

2394 ms

htc-one-m9-1.jpg

htc-one-m9-1.jpg

2397 ms

samsung-galaxy-s6-edge.jpg

samsung-galaxy-s6-edge.jpg

2481 ms

sonyericsson-xperia-arc-s.jpg

sonyericsson-xperia-arc-s.jpg

2485 ms

user

user

974 ms

ga.js

ga.js

51 ms

all.js

all.js

165 ms

plusone.js

plusone.js

110 ms

67 ms

__utm.gif

__utm.gif

23 ms

65 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

20 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

70 ms

fastbutton

fastbutton

113 ms

79 ms

128 ms

postmessageRelay

postmessageRelay

39 ms

xd_arbiter.php

xd_arbiter.php

195 ms

xd_arbiter.php

xd_arbiter.php

249 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

18 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

20 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

99 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

60 ms

rpc:shindig_random.js

rpc:shindig_random.js

461 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

12 ms

sso

sso

215 ms

button_grey_small.png

button_grey_small.png

90 ms

sso

sso

645 ms

Accessibility Review

zonzoo.nl accessibility score

52

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

Image elements do not have [alt] attributes

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

zonzoo.nl best practices score

58

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

zonzoo.nl SEO score

92

Search Engine Optimization Advices

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 Zonzoo.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 Zonzoo.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

zonzoo.nl

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