Access duik-winkel.nl. Diveshop, duikshop, duikwinkel, duikmateriaal, duikspullen kopen

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value13.4 s

2/100

10%

TBT (Total Blocking Time)

Value500 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0.466

19/100

15%

TTI (Time to Interactive)

Value21.3 s

1/100

10%

duik-winkel.nl

270 ms

www.diveshop.nl

923 ms

css3.css

89 ms

header.css

177 ms

css

30 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Duik-winkel.nl, 86% (86 requests) were made to Diveshop.nl and 6% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Diveshop.nl.

Content Size

3.3 MB

After Optimization

1.4 MB

In fact, the total size of Duik-winkel.nl main page is 3.3 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. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 162.2 kB

Original 182.7 kB
After minification 166.1 kB
After compression 20.5 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 162.2 kB or 89% of the original size.

Image Optimization

-51%

Potential reduce by 1.1 MB

Original 2.1 MB
After minification 1.0 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. Obviously, Duik Winkel needs image optimization as it can save up to 1.1 MB or 51% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 693.3 kB

Original 972.1 kB
After minification 968.2 kB
After compression 278.8 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 693.3 kB or 71% of the original size.

CSS Optimization

-21%

Potential reduce by 10.4 kB

Original 49.2 kB
After minification 49.2 kB
After compression 38.9 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. Duik-winkel.nl needs all CSS files to be minified and compressed as it can save up to 10.4 kB or 21% of the original size.

Requests Now

After Optimization

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duik Winkel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

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 Duik-winkel.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 Duik-winkel.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

duik-winkel.nl

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Diveshop, duikshop, duikwinkel, duikmateriaal, duikspullen kopen

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

duik-winkel.nl

www.diveshop.nl

css3.css

header.css

css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

duik-winkel.nl

www.diveshop.nl

css3.css

header.css

css

css

a3f4f0c7c89a555deca7cc722c379383.css

43f2459e3db580805175d11d4a333d89.css

owl.carousel.css

logo.png

transparent.png

VerwarmingAchtergrond.png

VerwarmingGolf.png

VerwarmingTekst1.png

VerwarmingTekst2.png

VerwarmingVulling.png

VerwarmingHoes.png

VerwarmingPrijs.png

Achtergrond.png

Golf.png

tekst1.png

Tekst2.png

Abyss.png

315.png

MK17C300.png

249links.png

MK17S555_1.png

249.png

BiologieAchtergrond.png

BoekBiologie.png

Tekst1Biologie.png

Tekst2Biologie.png

BasisNEWIDC.png

BasisNEWOWD.png

WebshopAchtergrond.png

WebshopTekst1.png

WebshopTekst2.png

WebshopTekst3.png

47d89269b29927480cf54020e33e1510.js

7aa207b89e1e4c40cec9b98fdc7307df.js

owl.carousel.min.js

chat.js

WebshopTekst4.png