Tools & Wizards About Us
vanderkreek.nl screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

vanderkreek.nl

Kantoor- en kunstenaarsbenodigdheden | Van der Kreek

Page Load Speed

5.9 sec in total

First Response

269 ms

Resources Loaded

5 sec

Page Rendered

642 ms

vanderkreek.nl screenshot

About Website

Click here to check amazing Van Der Kreek content. Otherwise, check out these important facts you probably never knew about vanderkreek.nl

All Office Van der Kreek is gespecialiseerd in het leveren van hoogwaardige kantoorgerelateerde artikelen, boeken & kunstenaarsbenodigdheden!

Visit vanderkreek.nl

Key Findings

We analyzed Vanderkreek.nl page load time and found that the first response time was 269 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

vanderkreek.nl performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value10.3 s

24/100

10%

Network Requests Diagram

vanderkreek.nl

269 ms

www.boekhandelvanderkreek.nl

694 ms

1068 ms

Application.css

1043 ms

bundle-head-app.js

368 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Vanderkreek.nl, 68% (84 requests) were made to Tbr.nl and 20% (25 requests) were made to Blz.nl. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Blz.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 750.5 kB (50%)

Content Size

1.5 MB

After Optimization

740.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vanderkreek.nl main page is 1.5 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. Javascripts take 837.9 kB which makes up the majority of the site volume.

HTML Optimization

-37%

Potential reduce by 105 B

  • Original 287 B
  • After minification 287 B
  • After compression 182 B

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 105 B or 37% of the original size.

Image Optimization

-3%

Potential reduce by 14.4 kB

  • Original 445.2 kB
  • After minification 430.8 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. Van Der Kreek images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 564.9 kB

  • Original 837.9 kB
  • After minification 837.9 kB
  • After compression 273.1 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 564.9 kB or 67% of the original size.

CSS Optimization

-82%

Potential reduce by 171.1 kB

  • Original 207.6 kB
  • After minification 207.4 kB
  • After compression 36.4 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. Vanderkreek.nl needs all CSS files to be minified and compressed as it can save up to 171.1 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (6%)

Requests Now

115

After Optimization

108

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 115 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Van Der Kreek. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

vanderkreek.nl

vanderkreek.nl

269 ms

www.boekhandelvanderkreek.nl

www.boekhandelvanderkreek.nl

694 ms

1068 ms

Application.css

Application.css

1043 ms

bundle-head-app.js

bundle-head-app.js

368 ms

bundle-app.js

bundle-app.js

1384 ms

dl.js

dl.js

58 ms

js

js

25 ms

cover

cover

278 ms

logoblz2.png

logoblz2.png

127 ms

boekenweek2016-blz-400x300.jpg

boekenweek2016-blz-400x300.jpg

444 ms

boekenweek2016-folder-blz-400x300.jpg

boekenweek2016-folder-blz-400x300.jpg

436 ms

boekenweek2016-prijsvraag-blz-400x300.jpg

boekenweek2016-prijsvraag-blz-400x300.jpg

463 ms

naamloos-1.jpg

naamloos-1.jpg

226 ms

inktaap_100x100.jpg

inktaap_100x100.jpg

244 ms

3is2-libris_202x200.jpg

3is2-libris_202x200.jpg

456 ms

actie-tolino-llp-blz-400x300.jpg

actie-tolino-llp-blz-400x300.jpg

440 ms

kbvdmnd-mrt-400x300-blz.jpg

kbvdmnd-mrt-400x300-blz.jpg

1052 ms

boekenweek2016-exclusieve-blz-400x300.jpg

boekenweek2016-exclusieve-blz-400x300.jpg

1049 ms

logofooterblz.png

logofooterblz.png

1051 ms

thuiswinkel-logo.png

thuiswinkel-logo.png

1045 ms

cover

cover

278 ms

cover

cover

308 ms

cover

cover

389 ms

cover

cover

300 ms

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cover

306 ms

cover

cover

358 ms

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362 ms

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387 ms

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396 ms

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398 ms

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442 ms

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447 ms

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474 ms

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477 ms

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1035 ms

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1036 ms

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1037 ms

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1038 ms

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1039 ms

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1040 ms

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1041 ms

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1041 ms

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1042 ms

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1042 ms

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1043 ms

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1044 ms

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cover

1046 ms

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cover

1046 ms

cover

cover

1046 ms

cover

cover

1047 ms

cover

cover

1047 ms

gtm.js

gtm.js

58 ms

OpenSans-Regular-webfont.woff

OpenSans-Regular-webfont.woff

974 ms

OpenSans-Semibold-webfont.woff

OpenSans-Semibold-webfont.woff

974 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

989 ms

OpenSans-Bold-webfont.woff

OpenSans-Bold-webfont.woff

982 ms

analytics.js

analytics.js

5 ms

conversion_async.js

conversion_async.js

24 ms

collect

collect

24 ms

38 ms

collect

collect

56 ms

36 ms

cover

cover

780 ms

cover

cover

778 ms

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757 ms

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751 ms

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751 ms

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700 ms

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697 ms

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671 ms

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671 ms

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664 ms

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662 ms

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619 ms

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cover

613 ms

cover

cover

587 ms

cover

cover

585 ms

all.js

all.js

492 ms

boekenweek2016-blz-car.jpg

boekenweek2016-blz-car.jpg

642 ms

actie-tolino-llp-blz-car.jpg

actie-tolino-llp-blz-car.jpg

411 ms

pluche-actie-blz-co.jpg

pluche-actie-blz-co.jpg

409 ms

cover

cover

104 ms

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cover

105 ms

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cover

105 ms

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cover

103 ms

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101 ms

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100 ms

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170 ms

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170 ms

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172 ms

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173 ms

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179 ms

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176 ms

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395 ms

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394 ms

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395 ms

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394 ms

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393 ms

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622 ms

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617 ms

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620 ms

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619 ms

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618 ms

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617 ms

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616 ms

64 ms

icomoon.woff

icomoon.woff

266 ms

xd_arbiter.php

xd_arbiter.php

270 ms

xd_arbiter.php

xd_arbiter.php

707 ms

sy-loader.gif

sy-loader.gif

161 ms

Accessibility Review

vanderkreek.nl accessibility score

59

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

vanderkreek.nl best practices score

67

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

SEO Factors

vanderkreek.nl SEO score

54

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

High

Page is blocked from indexing

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

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vanderkreek.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 Vanderkreek.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

vanderkreek.nl

Open Graph description is not detected on the main page of Van Der Kreek. 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: