Tools & Wizards About Us
janwolters.nl screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

janwolters.nl

Jan Wolters - Gratis bladmuziek - Jazz, Pop, Klassiek, Volksmuziek, Kerstmuziek

Page Load Speed

2.2 sec in total

First Response

407 ms

Resources Loaded

1.6 sec

Page Rendered

179 ms

janwolters.nl screenshot

About Website

Visit janwolters.nl now to see the best up-to-date Jan Wolters content for United States and also check out these interesting facts you probably never knew about janwolters.nl

Deze site beschrijft de muziek van Jan Wolters, met klank en bladmuziek voorbeelden.

Visit janwolters.nl

Key Findings

We analyzed Janwolters.nl page load time and found that the first response time was 407 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

janwolters.nl performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

87/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value1,640 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

janwolters.nl

407 ms

janwolters.nl

405 ms

jwstyle-new2.css

98 ms

cookieconsent.min.js

40 ms

show_ads.js

89 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 57% of them (8 requests) were addressed to the original Janwolters.nl, 14% (2 requests) were made to Cdnjs.cloudflare.com and 14% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (688 ms) belongs to the original domain Janwolters.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 166.4 kB (58%)

Content Size

289.3 kB

After Optimization

122.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Janwolters.nl main page is 289.3 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 245.2 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 10.3 kB

  • Original 14.1 kB
  • After minification 12.2 kB
  • After compression 3.8 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 1.9 kB, which is 13% 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 10.3 kB or 73% of the original size.

Image Optimization

-7%

Potential reduce by 2.0 kB

  • Original 27.2 kB
  • After minification 25.2 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. Jan Wolters images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 151.9 kB

  • Original 245.2 kB
  • After minification 245.2 kB
  • After compression 93.3 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 151.9 kB or 62% of the original size.

CSS Optimization

-80%

Potential reduce by 2.3 kB

  • Original 2.8 kB
  • After minification 2.2 kB
  • After compression 566 B

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. Janwolters.nl needs all CSS files to be minified and compressed as it can save up to 2.3 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (25%)

Requests Now

12

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jan Wolters. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

janwolters.nl

janwolters.nl

407 ms

janwolters.nl

janwolters.nl

405 ms

jwstyle-new2.css

jwstyle-new2.css

98 ms

cookieconsent.min.js

cookieconsent.min.js

40 ms

show_ads.js

show_ads.js

89 ms

counter.js

counter.js

40 ms

adsbygoogle.js

adsbygoogle.js

158 ms

t.php

t.php

129 ms

janwolters.jpg

janwolters.jpg

99 ms

vlag-ned.jpg

vlag-ned.jpg

195 ms

vlag-uk.jpg

vlag-uk.jpg

292 ms

notenbalk.gif

notenbalk.gif

688 ms

ico_pdf.gif

ico_pdf.gif

292 ms

dark-bottom.css

dark-bottom.css

11 ms

Accessibility Review

janwolters.nl accessibility score

96

Accessibility Issues

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 [lang] attribute

Best Practices

janwolters.nl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

High

Page has valid source maps

SEO Factors

janwolters.nl SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Janwolters.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Janwolters.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

janwolters.nl

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