Tools & Wizards About Us
koffiecentrale.nl screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

koffiecentrale.nl

Koffiecentrale - Specialist in Premium Espresso Koffie - Koffiecentrale.nl

Page Load Speed

5.5 sec in total

First Response

392 ms

Resources Loaded

4.8 sec

Page Rendered

298 ms

koffiecentrale.nl screenshot

About Website

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

Koffiecentrale specialist in online premium espresso koffie. Italiaanse premium espresso koffie online bestellen voor thuis, kantoor en gastronomie. Aangesloten bij Thuiswinkel.org en deelnemer van de...

Visit koffiecentrale.nl

Key Findings

We analyzed Koffiecentrale.nl page load time and found that the first response time was 392 ms and then it took 5.1 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

koffiecentrale.nl performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value19.4 s

0/100

25%

SI (Speed Index)

Value7.6 s

26/100

10%

TBT (Total Blocking Time)

Value1,930 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.351

31/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

koffiecentrale.nl

392 ms

www.koffiecentrale.nl

584 ms

b7f4d089bbbeb4356f97ef538b73700a.js

581 ms

css

30 ms

467197a439f20fcd06bd40e4de5c9991.css

188 ms

Our browser made a total of 157 requests to load all elements on the main page. We found that 87% of them (137 requests) were addressed to the original Koffiecentrale.nl, 3% (5 requests) were made to Fonts.gstatic.com and 3% (4 requests) were made to Bat.bing.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Koffiecentrale.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 617.4 kB (12%)

Content Size

5.1 MB

After Optimization

4.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Koffiecentrale.nl main page is 5.1 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. 60% of websites need less resources to load. Images take 4.3 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 209.9 kB

  • Original 233.1 kB
  • After minification 180.4 kB
  • After compression 23.2 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. This page needs HTML code to be minified as it can gain 52.7 kB, which is 23% 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 209.9 kB or 90% of the original size.

Image Optimization

-6%

Potential reduce by 265.9 kB

  • Original 4.3 MB
  • After minification 4.1 MB

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. Koffiecentrale images are well optimized though.

JavaScript Optimization

-34%

Potential reduce by 114.1 kB

  • Original 331.6 kB
  • After minification 331.6 kB
  • After compression 217.5 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 114.1 kB or 34% of the original size.

CSS Optimization

-13%

Potential reduce by 27.4 kB

  • Original 211.5 kB
  • After minification 211.2 kB
  • After compression 184.1 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. Koffiecentrale.nl needs all CSS files to be minified and compressed as it can save up to 27.4 kB or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (10%)

Requests Now

149

After Optimization

134

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 149 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koffiecentrale. 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

koffiecentrale.nl

koffiecentrale.nl

392 ms

www.koffiecentrale.nl

www.koffiecentrale.nl

584 ms

b7f4d089bbbeb4356f97ef538b73700a.js

b7f4d089bbbeb4356f97ef538b73700a.js

581 ms

css

css

30 ms

467197a439f20fcd06bd40e4de5c9991.css

467197a439f20fcd06bd40e4de5c9991.css

188 ms

d995a0f78ef6a72e9dde982c2451b73e.css

d995a0f78ef6a72e9dde982c2451b73e.css

663 ms

ecc8281a384b7b5164db59ae301c611a.js

ecc8281a384b7b5164db59ae301c611a.js

759 ms

tp.widget.sync.bootstrap.min.js

tp.widget.sync.bootstrap.min.js

16 ms

conversion.js

conversion.js

88 ms

bundle.42ecd298.js

bundle.42ecd298.js

99 ms

logo.svg

logo.svg

246 ms

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248 ms

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248 ms

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249 ms

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343 ms

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342 ms

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341 ms

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342 ms

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436 ms

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547 ms

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550 ms

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625 ms

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816 ms

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627 ms

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627 ms

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719 ms

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721 ms

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816 ms

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722 ms

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818 ms

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815 ms

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816 ms

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909 ms

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909 ms

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910 ms

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903 ms

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7j.woff

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7j.woff

82 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwlxdo.woff

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwlxdo.woff

224 ms

raxhHiqOu8IVPmnRc6SY1KXhnF_Y8fbfOLjOWw.woff

raxhHiqOu8IVPmnRc6SY1KXhnF_Y8fbfOLjOWw.woff

218 ms

raxhHiqOu8IVPmnRc6SY1KXhnF_Y8RHYOLjOWw.woff

raxhHiqOu8IVPmnRc6SY1KXhnF_Y8RHYOLjOWw.woff

218 ms

6xK1dSBYKcSV-LCoeQqfX1RYOo3qPZ7nsDQ.woff

6xK1dSBYKcSV-LCoeQqfX1RYOo3qPZ7nsDQ.woff

176 ms

main.js

main.js

196 ms

analytics.js

analytics.js

168 ms

gtm.js

gtm.js

207 ms

725 ms

kc-thee-ortea-kff.jpg

kc-thee-ortea-kff.jpg

668 ms

347x160ortea.jpg

347x160ortea.jpg

948 ms

frontfoto-Blasercafe-2024.jpg

frontfoto-Blasercafe-2024.jpg

1579 ms

collect

collect

12 ms

frontfoto-Universal-2024.jpg

frontfoto-Universal-2024.jpg

956 ms

frontfoto-CagliariSuperOro-2023.jpg

frontfoto-CagliariSuperOro-2023.jpg

1426 ms

Cerutti-Frontfoto.jpg

Cerutti-Frontfoto.jpg

1522 ms

frontfoto-Barbera-Mago-2022.jpg

frontfoto-Barbera-Mago-2022.jpg

1101 ms

asset_composer.js

asset_composer.js

40 ms

js

js

72 ms

bat.js

bat.js

30 ms

300_121-home-2020-01.jpg

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950 ms

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955 ms

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1136 ms

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1048 ms

73004373.js

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12 ms

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83 ms

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992 ms

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1036 ms

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1086 ms

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1122 ms

italie-kaart2.png

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1130 ms

0.7.34

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23 ms

italie-noord-kaart2.png

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1175 ms

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1141 ms

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1147 ms

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1198 ms

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1233 ms

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1234 ms

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1148 ms

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1198 ms

KC-DEC-BarberaMago-Teaser_1.png

KC-DEC-BarberaMago-Teaser_1.png

1231 ms

machine_espresso-e6.png

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1142 ms

machine_manuele.png

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1143 ms

casadelcaffe-25jaar.jpg

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1142 ms

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1146 ms

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1197 ms

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1231 ms

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1141 ms

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1142 ms

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1143 ms

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1146 ms

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1196 ms

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1165 ms

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953 ms

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851 ms

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764 ms

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760 ms

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761 ms

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752 ms

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704 ms

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669 ms

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661 ms

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615 ms

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630 ms

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657 ms

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608 ms

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574 ms

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573 ms

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570 ms

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570 ms

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571 ms

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570 ms

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571 ms

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572 ms

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571 ms

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570 ms

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570 ms

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569 ms

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570 ms

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570 ms

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570 ms

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569 ms

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571 ms

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569 ms

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569 ms

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569 ms

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570 ms

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570 ms

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569 ms

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569 ms

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569 ms

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570 ms

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569 ms

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569 ms

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570 ms

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569 ms

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569 ms

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570 ms

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571 ms

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571 ms

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569 ms

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570 ms

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96 ms

Accessibility Review

koffiecentrale.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.

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

koffiecentrale.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

Missing source maps for large first-party JavaScript

SEO Factors

koffiecentrale.nl SEO score

91

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koffiecentrale.nl can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Dutch. Our system also found out that Koffiecentrale.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

koffiecentrale.nl

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