Tools & Wizards About Us
boekenplan.nl screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    72% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

boekenplan.nl

Uitgeverij boeken | De beste boekenspecialist | Boekenplan

Page Load Speed

2.6 sec in total

First Response

444 ms

Resources Loaded

2 sec

Page Rendered

129 ms

boekenplan.nl screenshot

About Website

Visit boekenplan.nl now to see the best up-to-date Boekenplan content and also check out these interesting facts you probably never knew about boekenplan.nl

Bij Boekenplan geven we samen met auteurs hun boeken uit. Intensieve samenwerking staat centraal bij onze uitgeverij.

Visit boekenplan.nl

Key Findings

We analyzed Boekenplan.nl page load time and found that the first response time was 444 ms and then it took 2.2 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

boekenplan.nl performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value6.8 s

34/100

10%

TBT (Total Blocking Time)

Value340 ms

75/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

Network Requests Diagram

boekenplan.nl

444 ms

style.php

374 ms

front.js

828 ms

article.js

253 ms

recaptcha_ajax.js

6 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 39% of them (21 requests) were addressed to the original Boekenplan.nl, 37% (20 requests) were made to Static.boekenplan.nl and 4% (2 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (828 ms) relates to the external source Static.boekenplan.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (71%)

Content Size

1.7 MB

After Optimization

500.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Boekenplan.nl main page is 1.7 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. 45% of websites need less resources to load. Javascripts take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 51.3 kB

  • Original 70.1 kB
  • After minification 69.6 kB
  • After compression 18.8 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 51.3 kB or 73% of the original size.

Image Optimization

-20%

Potential reduce by 5.0 kB

  • Original 24.9 kB
  • After minification 19.9 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, Boekenplan needs image optimization as it can save up to 5.0 kB 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

-70%

Potential reduce by 1.0 MB

  • Original 1.5 MB
  • After minification 1.5 MB
  • After compression 437.9 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 1.0 MB or 70% of the original size.

CSS Optimization

-86%

Potential reduce by 146.1 kB

  • Original 169.9 kB
  • After minification 163.1 kB
  • After compression 23.8 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. Boekenplan.nl needs all CSS files to be minified and compressed as it can save up to 146.1 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (42%)

Requests Now

52

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Boekenplan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

boekenplan.nl

boekenplan.nl

444 ms

style.php

style.php

374 ms

front.js

front.js

828 ms

article.js

article.js

253 ms

recaptcha_ajax.js

recaptcha_ajax.js

6 ms

navigate.js

navigate.js

255 ms

addthis_widget.js

addthis_widget.js

9 ms

buttons.js

buttons.js

12 ms

home.js

home.js

119 ms

hotjar-54207.js

hotjar-54207.js

149 ms

facebook.png

facebook.png

121 ms

twitter.png

twitter.png

226 ms

linkedin.png

linkedin.png

238 ms

flickr.png

flickr.png

235 ms

youtube.png

youtube.png

236 ms

google.png

google.png

232 ms

2014063019564.png.orig.png

2014063019564.png.orig.png

247 ms

2014011455845.png.orig.png

2014011455845.png.orig.png

247 ms

2014011495299.png.orig.png

2014011495299.png.orig.png

119 ms

2014011412247.png.orig.png

2014011412247.png.orig.png

240 ms

2014011433371.png.orig.png

2014011433371.png.orig.png

377 ms

2014011499882.png.orig.png

2014011499882.png.orig.png

346 ms

2014011457892.png.orig.png

2014011457892.png.orig.png

238 ms

201401146958.png.orig.png

201401146958.png.orig.png

354 ms

2014011480854.png.orig.png

2014011480854.png.orig.png

481 ms

2014011457608.png.orig.png

2014011457608.png.orig.png

485 ms

2014011437390.png.orig.png

2014011437390.png.orig.png

482 ms

2014011436628.png.orig.png

2014011436628.png.orig.png

574 ms

2014011483330.png.orig.png

2014011483330.png.orig.png

481 ms

2014011477116.png.orig.png

2014011477116.png.orig.png

489 ms

2014011488543.png.orig.png

2014011488543.png.orig.png

584 ms

FranklinGothic-Book-webfont.woff

FranklinGothic-Book-webfont.woff

566 ms

300lo.json

300lo.json

49 ms

getAllAppDefault.esi

getAllAppDefault.esi

93 ms

prev.png

prev.png

124 ms

topclose.png

topclose.png

223 ms

close_large.png

close_large.png

237 ms

close_small.png

close_small.png

234 ms

loading.gif

loading.gif

235 ms

inner_slideshow_stop.png

inner_slideshow_stop.png

238 ms

inner_prev.png

inner_prev.png

239 ms

inner_next.png

inner_next.png

332 ms

controller_prev.png

controller_prev.png

348 ms

controller_slideshow_stop.png

controller_slideshow_stop.png

349 ms

0314.js

0314.js

48 ms

sh.8e5f85691f9aaa082472a194.html

sh.8e5f85691f9aaa082472a194.html

24 ms

modules-043c1e6abe660c48857202e419ff9d8a.js

modules-043c1e6abe660c48857202e419ff9d8a.js

31 ms

getSegment.php

getSegment.php

156 ms

checkOAuth.esi

checkOAuth.esi

7 ms

visit-data

visit-data

202 ms

t.dhj

t.dhj

8 ms

controller_next.png

controller_next.png

121 ms

controller_slideshow_play.png

controller_slideshow_play.png

118 ms

controller_close.png

controller_close.png

117 ms

Accessibility Review

boekenplan.nl accessibility score

73

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.

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

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

boekenplan.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

boekenplan.nl SEO score

100

Search Engine Optimization Advices

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 Boekenplan.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 Boekenplan.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

boekenplan.nl

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