Tools & Wizards About Us
bijbel.eo.nl screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 46

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

bijbel.eo.nl

Bijbel Online - EO.nl/Bijbel

Page Load Speed

4.5 sec in total

First Response

550 ms

Resources Loaded

3.4 sec

Page Rendered

471 ms

bijbel.eo.nl screenshot

About Website

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

Op Bijbel Online lees je de Bijbel in de Nieuwe Bijbelvertaling. Hier vind je inleidingen op de Bijbelboeken, thema’s en studies met extra uitleg.

Visit bijbel.eo.nl

Key Findings

We analyzed Bijbel.eo.nl page load time and found that the first response time was 550 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

bijbel.eo.nl performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value16.9 s

0/100

25%

SI (Speed Index)

Value8.0 s

21/100

10%

TBT (Total Blocking Time)

Value510 ms

57/100

30%

CLS (Cumulative Layout Shift)

Value1.066

2/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

bijbel.eo.nl

550 ms

bijbel.eo.nl

361 ms

bijbel.eo.nl

87 ms

bijbel.eo.nl

85 ms

bijbel.eo.nl

86 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 50% of them (15 requests) were addressed to the original Bijbel.eo.nl, 17% (5 requests) were made to Google-analytics.com and 13% (4 requests) were made to Cookiesv2.publiekeomroep.nl. The less responsive or slowest element that took the longest time to load (613 ms) relates to the external source Www-assets.npo.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 387.3 kB (39%)

Content Size

989.1 kB

After Optimization

601.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bijbel.eo.nl main page is 989.1 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. Javascripts take 434.5 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 52.7 kB

  • Original 80.7 kB
  • After minification 74.4 kB
  • After compression 28.0 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 52.7 kB or 65% of the original size.

Image Optimization

-0%

Potential reduce by 1.3 kB

  • Original 417.6 kB
  • After minification 416.3 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. Bijbel EO images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 292.4 kB

  • Original 434.5 kB
  • After minification 408.0 kB
  • After compression 142.1 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 292.4 kB or 67% of the original size.

CSS Optimization

-72%

Potential reduce by 40.8 kB

  • Original 56.3 kB
  • After minification 54.1 kB
  • After compression 15.5 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. Bijbel.eo.nl needs all CSS files to be minified and compressed as it can save up to 40.8 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (32%)

Requests Now

19

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bijbel EO. 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 as a result speed up the page load time.

Network Requests Diagram

bijbel.eo.nl

bijbel.eo.nl

550 ms

bijbel.eo.nl

bijbel.eo.nl

361 ms

bijbel.eo.nl

bijbel.eo.nl

87 ms

bijbel.eo.nl

bijbel.eo.nl

85 ms

bijbel.eo.nl

bijbel.eo.nl

86 ms

bijbel.eo.nl

bijbel.eo.nl

87 ms

bijbel.eo.nl

bijbel.eo.nl

229 ms

app-26c6a375f8.css

app-26c6a375f8.css

167 ms

cconsent-1.6.2.js

cconsent-1.6.2.js

342 ms

npo_cc_styles.css

npo_cc_styles.css

456 ms

all-66a302f176.js

all-66a302f176.js

421 ms

eo.menu.js

eo.menu.js

571 ms

jquery.min.js

jquery.min.js

60 ms

home-small.jpg

home-small.jpg

431 ms

npo-knop.png

npo-knop.png

85 ms

gtm.js

gtm.js

114 ms

gotham-book-webfont.woff

gotham-book-webfont.woff

243 ms

gotham-light-webfont.woff

gotham-light-webfont.woff

253 ms

gotham-medium-webfont.woff

gotham-medium-webfont.woff

206 ms

analytics.js

analytics.js

27 ms

collect

collect

85 ms

collect

collect

92 ms

cs.js

cs.js

99 ms

259 ms

eo.menu.css

eo.menu.css

99 ms

bg_gradient.gif

bg_gradient.gif

115 ms

collect

collect

64 ms

collect

collect

56 ms

sprite2.png

sprite2.png

121 ms

omrndbd_-webfont-b53f41a7ef0bf4c19c2604a4475b2e5a.woff

omrndbd_-webfont-b53f41a7ef0bf4c19c2604a4475b2e5a.woff

613 ms

Accessibility Review

bijbel.eo.nl accessibility score

46

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

Form elements do not have associated labels

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

bijbel.eo.nl best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

bijbel.eo.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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bijbel.eo.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 Bijbel.eo.nl main page’s claimed encoding is iso-8859-1. 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

bijbel.eo.nl

Open Graph data is detected on the main page of Bijbel EO. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: