Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 55

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 72

    SEO

    Google-friendlier than
    31% of websites

zadenkopenonline.nl

Zaden Kopen? Zadenkopenonline.nl

Page Load Speed

5.7 sec in total

First Response

265 ms

Resources Loaded

5.1 sec

Page Rendered

340 ms

zadenkopenonline.nl screenshot

About Website

Click here to check amazing Zadenkopenonline content for Netherlands. Otherwise, check out these important facts you probably never knew about zadenkopenonline.nl

Zaden Kopen? Zadenkopenonline.nl

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Key Findings

We analyzed Zadenkopenonline.nl page load time and found that the first response time was 265 ms and then it took 5.5 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

zadenkopenonline.nl performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.4 s

2/100

10%

LCP (Largest Contentful Paint)

Value12.8 s

0/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value410 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.106

88/100

15%

TTI (Time to Interactive)

Value14.5 s

8/100

10%

Network Requests Diagram

zadenkopenonline.nl

265 ms

zadenkopenonline.nl

458 ms

www.zadenkopenonline.nl

1564 ms

css.min.css

202 ms

home.v2.min.css

259 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 52% of them (28 requests) were addressed to the original Zadenkopenonline.nl, 7% (4 requests) were made to Tuincentrumkoeman.casengo.com and 6% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Zadenkopenonline.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 376.1 kB (38%)

Content Size

997.7 kB

After Optimization

621.6 kB

In fact, the total size of Zadenkopenonline.nl main page is 997.7 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 480.3 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 29.1 kB

  • Original 38.6 kB
  • After minification 35.8 kB
  • After compression 9.5 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 29.1 kB or 75% of the original size.

Image Optimization

-1%

Potential reduce by 5.8 kB

  • Original 442.1 kB
  • After minification 436.3 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. Zadenkopenonline images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 311.7 kB

  • Original 480.3 kB
  • After minification 441.7 kB
  • After compression 168.6 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 311.7 kB or 65% of the original size.

CSS Optimization

-80%

Potential reduce by 29.5 kB

  • Original 36.7 kB
  • After minification 34.3 kB
  • After compression 7.2 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. Zadenkopenonline.nl needs all CSS files to be minified and compressed as it can save up to 29.5 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (52%)

Requests Now

50

After Optimization

24

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zadenkopenonline. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

zadenkopenonline.nl accessibility score

55

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.

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 valid value for its [lang] attribute.

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

zadenkopenonline.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

Missing source maps for large first-party JavaScript

SEO Factors

zadenkopenonline.nl SEO score

72

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zadenkopenonline.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 Zadenkopenonline.nl main page’s claimed encoding is windows-1252. 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

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