Tools & Wizards About Us

Report Summary

  • 0

    Performance

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

jbl.nl

Officiële JBL Webshop | Speakers, hoofdtelefoons en meer!

Page Load Speed

1.2 sec in total

First Response

108 ms

Resources Loaded

1.1 sec

Page Rendered

59 ms

About Website

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

Superieur geluid van JBL. Draadloze speakers, hoofdtelefoons, soundbars en meer. ✓Gratis verzending! ✓2 jaar garantie! ✓Gratis retour binnen 30 dagen!

Visit jbl.nl

Key Findings

We analyzed Jbl.nl page load time and found that the first response time was 108 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

jbl.nl performance score

0

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0

0/100

10%

LCP (Largest Contentful Paint)

Value0

0/100

25%

SI (Speed Index)

Value0

0/100

10%

TBT (Total Blocking Time)

Value0

0/100

30%

CLS (Cumulative Layout Shift)

Value0.53

14/100

15%

TTI (Time to Interactive)

Value0

0/100

10%

Network Requests Diagram

DDUser-Challenge

108 ms

i2.js

17 ms

293 ms

font-face.css

19 ms

index.css

21 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 14% of them (1 request) were addressed to the original Jbl.nl, 57% (4 requests) were made to Static.captcha-delivery.com and 14% (1 request) were made to Ct.captcha-delivery.com. The less responsive or slowest element that took the longest time to load (339 ms) relates to the external source Static.captcha-delivery.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 10.4 kB (55%)

Content Size

18.9 kB

After Optimization

8.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jbl.nl main page is 18.9 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. Only 5% of websites need less resources to load. Javascripts take 11.8 kB which makes up the majority of the site volume.

HTML Optimization

-40%

Potential reduce by 463 B

  • Original 1.2 kB
  • After minification 1.2 kB
  • After compression 708 B

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 463 B or 40% of the original size.

Image Optimization

-20%

Potential reduce by 872 B

  • Original 4.4 kB
  • After minification 3.5 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. Obviously, JBL needs image optimization as it can save up to 872 B or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 8.5 kB

  • Original 11.8 kB
  • After minification 11.8 kB
  • After compression 3.3 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 8.5 kB or 72% of the original size.

CSS Optimization

-34%

Potential reduce by 514 B

  • Original 1.5 kB
  • After minification 1.3 kB
  • After compression 977 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. Jbl.nl needs all CSS files to be minified and compressed as it can save up to 514 B or 34% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JBL. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

jbl.nl accessibility score

69

Accessibility Issues

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

Document doesn't have a <title> element

High

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

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

jbl.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

SEO Factors

jbl.nl SEO score

75

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

Document doesn't have a <title> element

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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