Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

boom.nl

Boom | Voor een beter begrip | Kwalitatief hoogwaardige en betrouwbare informatie

Page Load Speed

5.8 sec in total

First Response

1.1 sec

Resources Loaded

4.5 sec

Page Rendered

203 ms

boom.nl screenshot

About Website

Welcome to boom.nl homepage info - get ready to check Boom best content for Netherlands right away, or after learning these important things about boom.nl

De wereld om ons heen verandert continu. Met nog meer kennis. Vernieuwende standpunten. Bij Boom zorgen we voor een beter begrip voor iedereen. =>

Visit boom.nl

Key Findings

We analyzed Boom.nl page load time and found that the first response time was 1.1 sec and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

boom.nl performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value15.0 s

0/100

25%

SI (Speed Index)

Value13.4 s

2/100

10%

TBT (Total Blocking Time)

Value1,200 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value24.3 s

0/100

10%

Network Requests Diagram

www.boom.nl

1116 ms

boom.css

503 ms

jquery-1.4.3.min.js

684 ms

jquery.easing.js

374 ms

respond.min.js

281 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 95% of them (38 requests) were addressed to the original Boom.nl, 5% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Boom.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 105.0 kB (22%)

Content Size

479.4 kB

After Optimization

374.4 kB

In fact, the total size of Boom.nl main page is 479.4 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. 25% of websites need less resources to load. Images take 316.1 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 13.0 kB

  • Original 17.1 kB
  • After minification 15.4 kB
  • After compression 4.1 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 13.0 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 1.7 kB

  • Original 316.1 kB
  • After minification 314.4 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. Boom images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 67.4 kB

  • Original 118.4 kB
  • After minification 113.2 kB
  • After compression 51.0 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 67.4 kB or 57% of the original size.

CSS Optimization

-82%

Potential reduce by 22.9 kB

  • Original 27.8 kB
  • After minification 21.7 kB
  • After compression 4.9 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. Boom.nl needs all CSS files to be minified and compressed as it can save up to 22.9 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (13%)

Requests Now

39

After Optimization

34

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Boom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

boom.nl accessibility score

80

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

boom.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

boom.nl SEO score

90

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

    N/A

  • Encoding

    UTF-8

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