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koffiecenter.nl screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    81% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 97

    SEO

    Google-friendlier than
    92% of websites

koffiecenter.nl

Koffiezetapparaat kopen? - Coolblue - Voor 23.59u, morgen in huis

Page Load Speed

4.5 sec in total

First Response

424 ms

Resources Loaded

3.8 sec

Page Rendered

276 ms

koffiecenter.nl screenshot

About Website

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

Koffiezetapparaten producten kopen? Coolblue levert ook op zondag en in de avonduren! Gratis bezorging & retour.

Visit koffiecenter.nl

Key Findings

We analyzed Koffiecenter.nl page load time and found that the first response time was 424 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

koffiecenter.nl performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

61/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

Network Requests Diagram

koffiecenter.nl

424 ms

www.koffiecenter.nl

906 ms

4485014999.js

39 ms

geo2.js

67 ms

event

14 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Koffiecenter.nl, 26% (18 requests) were made to Image.coolblue.io and 19% (13 requests) were made to Skin.cbcdn.net. The less responsive or slowest element that took the longest time to load (906 ms) belongs to the original domain Koffiecenter.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 569.6 kB (62%)

Content Size

920.4 kB

After Optimization

350.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Koffiecenter.nl main page is 920.4 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 327.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 160.9 kB

  • Original 200.4 kB
  • After minification 190.6 kB
  • After compression 39.5 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 160.9 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 2.0 kB

  • Original 136.5 kB
  • After minification 134.5 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. Koffiecenter images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 194.6 kB

  • Original 327.1 kB
  • After minification 327.0 kB
  • After compression 132.4 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 194.6 kB or 60% of the original size.

CSS Optimization

-83%

Potential reduce by 212.1 kB

  • Original 256.4 kB
  • After minification 256.2 kB
  • After compression 44.3 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. Koffiecenter.nl needs all CSS files to be minified and compressed as it can save up to 212.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (53%)

Requests Now

60

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koffiecenter. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

koffiecenter.nl

koffiecenter.nl

424 ms

www.koffiecenter.nl

www.koffiecenter.nl

906 ms

4485014999.js

4485014999.js

39 ms

geo2.js

geo2.js

67 ms

event

event

14 ms

event

event

4 ms

analytics.js

analytics.js

57 ms

core.js

core.js

87 ms

collect

collect

31 ms

collect

collect

78 ms

collect

collect

51 ms

collect

collect

52 ms

collect

collect

81 ms

collect

collect

99 ms

jquery.min.js

jquery.min.js

81 ms

global.0209e9bc44de66c4ef0291f1ab1ed052.js

global.0209e9bc44de66c4ef0291f1ab1ed052.js

476 ms

homepage.aa0a444b0cd783ebd0b624b0fc2b2826.js

homepage.aa0a444b0cd783ebd0b624b0fc2b2826.js

162 ms

koffiecenter.nl

koffiecenter.nl

528 ms

125671

125671

465 ms

koffiecenter.nl

koffiecenter.nl

528 ms

59768

59768

465 ms

116515

116515

529 ms

189838

189838

525 ms

441426

441426

529 ms

441437

441437

527 ms

428532

428532

544 ms

gtm.js

gtm.js

50 ms

cta_arrow_blue.gif

cta_arrow_blue.gif

202 ms

icon-arrow.svg

icon-arrow.svg

200 ms

155624

155624

687 ms

465 ms

activity;src=4498641;type=Count0;cat=exper0;ord=1;num=3178831383935

activity;src=4498641;type=Count0;cat=exper0;ord=1;num=3178831383935

78 ms

ga-audiences

ga-audiences

86 ms

ga-audiences

ga-audiences

71 ms

aquant.js

aquant.js

42 ms

everything-for-a-smile.svg

everything-for-a-smile.svg

249 ms

global.424f9cb88980e5078bda480c22f3a9a5.css

global.424f9cb88980e5078bda480c22f3a9a5.css

329 ms

specialist-right-medium.png

specialist-right-medium.png

589 ms

anchor_external.png

anchor_external.png

168 ms

442145

442145

96 ms

377560

377560

91 ms

357726

357726

91 ms

291267

291267

93 ms

489065

489065

102 ms

278498

278498

168 ms

376708

376708

169 ms

441426

441426

172 ms

437266

437266

252 ms

143160

143160

261 ms

pixel;r=644064715;a=p-8scTRhCkmjzM8;ezt=1;orderid=;revenue=;labels=_fp.event.Koffiecenter;fpan=1;fpa=P0-1513788647-1456763464981;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1456763464981;tzo=-180;ref=;url=http%3A%2F%2Fwww.koffiecenter.nl%2F;ogl=

pixel;r=644064715;a=p-8scTRhCkmjzM8;ezt=1;orderid=;revenue=;labels=_fp.event.Koffiecenter;fpan=1;fpa=P0-1513788647-1456763464981;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1456763464981;tzo=-180;ref=;url=http%3A%2F%2Fwww.koffiecenter.nl%2F;ogl=

10 ms

css

css

61 ms

global-modules.6c9a860361b111a37f5875237753db89.css

global-modules.6c9a860361b111a37f5875237753db89.css

182 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

62 ms

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

83 ms

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

115 ms

CB_icon_font_25.woff

CB_icon_font_25.woff

159 ms

rating_stars_sprite.png

rating_stars_sprite.png

83 ms

nl_map_6.png

nl_map_6.png

125 ms

payments-icons-sprite-nl.svg

payments-icons-sprite-nl.svg

395 ms

awards_sprite.png

awards_sprite.png

159 ms

aebl____-webfont.woff

aebl____-webfont.woff

377 ms

index.5c52a53ca116ae5400ae9329303ffb52.css

index.5c52a53ca116ae5400ae9329303ffb52.css

84 ms

recentlyviewed.0a2d6086c675fcb9a1f19e5921c0f5e0.js

recentlyviewed.0a2d6086c675fcb9a1f19e5921c0f5e0.js

81 ms

tracking-tools.4e47c5d0ae4865cfb57ee9c03b0cf8bb.js

tracking-tools.4e47c5d0ae4865cfb57ee9c03b0cf8bb.js

81 ms

stats.ebf8cf7f88df2ad8bcaefeca96200eb7.js

stats.ebf8cf7f88df2ad8bcaefeca96200eb7.js

160 ms

spinner-animation.gif

spinner-animation.gif

85 ms

dobraslab-book-webfont.woff

dobraslab-book-webfont.woff

238 ms

6325.js

6325.js

29 ms

s

s

103 ms

u

u

61 ms

Accessibility Review

koffiecenter.nl accessibility score

91

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.

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

koffiecenter.nl best practices score

92

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

Missing source maps for large first-party JavaScript

SEO Factors

koffiecenter.nl SEO score

97

Search Engine Optimization Advices

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

    NL

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koffiecenter.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 Koffiecenter.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

koffiecenter.nl

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