Tools & Wizards About Us

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

supplemento.nl

Supplemento Blog - Over Voeding, Sport & Lekker Leven

Page Load Speed

2.8 sec in total

First Response

381 ms

Resources Loaded

2 sec

Page Rendered

409 ms

About Website

Welcome to supplemento.nl homepage info - get ready to check Supplemento best content right away, or after learning these important things about supplemento.nl

Gezond leven, snel afvallen, fanatiek sporten - het Supplemento Blog inspireert en geeft tips - voor iedereen die zijn gezondheid serieus neemt.

Visit supplemento.nl

Key Findings

We analyzed Supplemento.nl page load time and found that the first response time was 381 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

supplemento.nl performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value530 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0.031

100/100

15%

TTI (Time to Interactive)

Value7.4 s

49/100

10%

Network Requests Diagram

supplemento.nl

381 ms

supplemento.nl

529 ms

8dyf8.css

353 ms

4ilit.css

347 ms

js

58 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that 86% of them (18 requests) were addressed to the original Supplemento.nl, 10% (2 requests) were made to Googletagmanager.com and 5% (1 request) were made to Partner.bol.com. The less responsive or slowest element that took the longest time to load (668 ms) belongs to the original domain Supplemento.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 302.8 kB (72%)

Content Size

418.7 kB

After Optimization

115.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Supplemento.nl main page is 418.7 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. 15% of websites need less resources to load. Javascripts take 184.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 43.6 kB

  • Original 55.7 kB
  • After minification 52.7 kB
  • After compression 12.2 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 43.6 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 277 B

  • Original 36.5 kB
  • After minification 36.3 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. Supplemento images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 137.9 kB

  • Original 184.3 kB
  • After minification 147.1 kB
  • After compression 46.4 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 137.9 kB or 75% of the original size.

CSS Optimization

-85%

Potential reduce by 121.1 kB

  • Original 142.2 kB
  • After minification 136.1 kB
  • After compression 21.0 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. Supplemento.nl needs all CSS files to be minified and compressed as it can save up to 121.1 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (50%)

Requests Now

14

After Optimization

7

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Supplemento. 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

Accessibility Review

supplemento.nl accessibility score

86

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

supplemento.nl best practices score

83

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

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

supplemento.nl SEO score

83

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

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

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