Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

jbb.nl

JBB.nl - De Juridische Banenbank - Het grootste en beste aanbod vacatures advocatuur en vacatures bedrijfsjuristen

Page Load Speed

2.2 sec in total

First Response

346 ms

Resources Loaded

1.5 sec

Page Rendered

273 ms

jbb.nl screenshot

About Website

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

JBB, De Juridische Banenbank biedt kandidaten die op zoek zijn naar een juridische baan het meest complete en actuele aanbod van juridische vacatures.

Visit jbb.nl

Key Findings

We analyzed Jbb.nl page load time and found that the first response time was 346 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

jbb.nl performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value1,410 ms

15/100

30%

CLS (Cumulative Layout Shift)

Value0.212

59/100

15%

TTI (Time to Interactive)

Value14.4 s

9/100

10%

Network Requests Diagram

jbb.nl

346 ms

www.jbb.nl

94 ms

www.jbb.nl

275 ms

package.css;p=master,flexilayout,branding;v=9b9f2baef8d4d56003f2060a0e1a2973

9 ms

css2

38 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 63% of them (37 requests) were addressed to the original Jbb.nl, 10% (6 requests) were made to Googletagmanager.com and 7% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (351 ms) belongs to the original domain Jbb.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 116.1 kB (7%)

Content Size

1.6 MB

After Optimization

1.5 MB

In fact, the total size of Jbb.nl main page is 1.6 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 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 52.3 kB

  • Original 63.9 kB
  • After minification 49.3 kB
  • After compression 11.7 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 14.7 kB, which is 23% 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 52.3 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 63.3 kB

  • Original 1.2 MB
  • After minification 1.1 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. JBB images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 450 B

  • Original 278.5 kB
  • After minification 278.5 kB
  • After compression 278.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 72 B

  • Original 19.5 kB
  • After minification 19.5 kB
  • After compression 19.4 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. Jbb.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 14 (26%)

Requests Now

53

After Optimization

39

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JBB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

jbb.nl accessibility score

84

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-*] attributes do not have valid values

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

jbb.nl best practices score

67

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

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

jbb.nl SEO score

93

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

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 Jbb.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 Jbb.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 JBB. 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: