Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

bonhoeffer.nl

Eigentijds – Eigenwijs | Bonhoeffercollege Castricum

Page Load Speed

3.7 sec in total

First Response

359 ms

Resources Loaded

2.7 sec

Page Rendered

584 ms

bonhoeffer.nl screenshot

About Website

Click here to check amazing Bonhoeffer content for Russia. Otherwise, check out these important facts you probably never knew about bonhoeffer.nl

Het Bonhoeffercollege in Castricum is een eigentijdse school voor mavo, havo, vwo, gymnasium en technasium, met focus op vertrouwen, vrijheid en verantwoordelijkheid.

Visit bonhoeffer.nl

Key Findings

We analyzed Bonhoeffer.nl page load time and found that the first response time was 359 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

bonhoeffer.nl performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value23.5 s

0/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value660 ms

45/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value30.6 s

0/100

10%

Network Requests Diagram

bonhoeffer.nl

359 ms

www.bonhoeffer.nl

695 ms

gtm.js

67 ms

cookie.css

96 ms

font-awesome-legacy.min.css

245 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 81% of them (62 requests) were addressed to the original Bonhoeffer.nl, 9% (7 requests) were made to Fonts.gstatic.com and 5% (4 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (986 ms) belongs to the original domain Bonhoeffer.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 225.8 kB (4%)

Content Size

5.9 MB

After Optimization

5.7 MB

In fact, the total size of Bonhoeffer.nl main page is 5.9 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. 70% of websites need less resources to load. Images take 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 100.4 kB

  • Original 120.0 kB
  • After minification 113.1 kB
  • After compression 19.5 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 100.4 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 17.7 kB

  • Original 5.3 MB
  • After minification 5.3 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. Bonhoeffer images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 46.4 kB

  • Original 268.3 kB
  • After minification 267.8 kB
  • After compression 221.9 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 46.4 kB or 17% of the original size.

CSS Optimization

-36%

Potential reduce by 61.2 kB

  • Original 171.9 kB
  • After minification 171.6 kB
  • After compression 110.7 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. Bonhoeffer.nl needs all CSS files to be minified and compressed as it can save up to 61.2 kB or 36% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (67%)

Requests Now

66

After Optimization

22

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bonhoeffer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bonhoeffer.nl accessibility score

90

Accessibility Issues

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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

bonhoeffer.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

bonhoeffer.nl SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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