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Openbaar Onderwijs Zwolle en Regio (OOZ) biedt onderwijs voor iedere leerling of scholier, op elk niveau. De OOZ-scholen werken aan onderwijs op maat: er zijn keuzevakken, themamodules of extra niveau...

Page load speed analysis

  • 53/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    262 ms

  • Resources loaded

    2.8 sec

  • Page rendered

    672 ms

  • Total page load time

    3.8 sec

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

We analyzed Openbaaronderwijszwolle.nl page load time and found that the first response time was 262 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Page optimization

  • HTML 34.9 kB
    Images 3.7 MB
    Javascripts 341.8 kB
    CSS 256.6 kB

    In fact, the total size of Openbaaronderwijszwolle.nl main page is 4.3 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. 60% of websites need less resources to load. Images take 3.7 MB which makes up the majority of the site volume.

    • Original 34.9 kB
    • After minification 30.8 kB
    • After compression 6.7 kB

    HTML optimization

    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 4.0 kB, which is 12% 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 28.1 kB or 81% of the original size.

    • Original 3.7 MB
    • After optimization 3.6 MB

    Image optimization

    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. Openbaaronderwijszwolle images are well optimized though.

    • Original 341.8 kB
    • After minification 341.7 kB
    • After compression 112.0 kB

    JavaScript optimization

    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 229.7 kB or 67% of the original size.

    • Original 256.6 kB
    • After minification 235.5 kB
    • After compression 40.5 kB

    CSS optimization

    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. Openbaaronderwijszwolle.nl needs all CSS files to be minified and compressed as it can save up to 216.1 kB or 84% of the original size.

Network requests diagram

  • openbaaronderwijszwolle.nl
  • www.ooz.nl
  • ooz.nl
  • wp-emoji-release.min.js
  • frontend.css
  • style.css
  • css
  • css
  • style.css
  • jquery.js
  • jquery-migrate.min.js
  • js
  • custom-min.js
  • base-min.js
  • wp-embed.min.js
  • base.min.css
  • main.css
  • jquery.sidr.light.css
  • analytics.js
  • ooz.svg
  • ooz-white.svg
  • header_yannick_v2.jpg
  • header_lotte.jpg
  • header_maarten_v2.jpg
  • header_nick.jpg
  • header_sonja.jpg
  • header_eize.jpg
  • scholenaanbod.svg
  • scholenaanbod2.svg
  • scholenaanbod-mb.svg
  • bg-zwollekaart.jpg
  • circles.svg
  • icons-netwerk.svg
  • waarom_onderwijs_klein_375x300_acf_cropped.jpg
  • learning_fundamentals_375x300_acf_cropped.jpg
  • trainingen_bg.png
  • footer.svg
  • fontawesome-webfont.woff
  • collect

Our browser made a total of 39 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Openbaaronderwijszwolle.nl, 85% (33 requests) were made to Ooz.nl and 5% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Ooz.nl.

Additional info on openbaaronderwijszwolle.nl

Requests

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Openbaaronderwijszwolle. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

8

Javascripts

19

Images

8

CSS

35

All

Possible request optimization

1

Javascripts

19

Images

1

CSS

14

Optimized

21

All

Normal result

Redirects

As for redirects, our browser reached this domain in two steps. The first redirect led to http://www.ooz.nl/, then it was forwarded to http://ooz.nl/, and finally we managed to open this domain. We strongly recommend that the redirects should be reduced, as the more redirects a site has, the slower it loads.

IP address

Openbaaronderwijszwolle.nl uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

openbaaronderwijszwolle.nl

capellen.nl

mail.capellen.nl

vmbopro.thorbecke-zwolle.nl

heesweg.thorbecke-zwolle.nl

5.157.87.135

DNS records

Type Host Target/ip TTL Other
A

openbaaronderwijszwolle.nl

5.157.87.135 60
NS

openbaaronderwijszwolle.nl

ns5.firstfind.net 14400
NS

openbaaronderwijszwolle.nl

ns3.firstfind.nl 14400
NS

openbaaronderwijszwolle.nl

ns4.firstfind.nl 14400
SOA

openbaaronderwijszwolle.nl

14400 Mname: ns3.firstfind.nl
Rname: hostmaster.firstfind.nl
Serial: 2018090400
Refresh: 16384
Retry: 2048
Expire: 1048576
Minimum-ttl: 14400

Language and encoding

Normal result

Language

N/A  language flag

Detected

NL nl language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Openbaaronderwijszwolle.nl can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Dutch. Our system also found out that Openbaaronderwijszwolle.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.

HTTPS certificate

SSL Certificate

Openbaaronderwijszwolle.nl has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

The server of Openbaaronderwijszwolle.nl is located in Netherlands, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance can potentially affect the page load time.

Good result

Good result

Social Sharing Optimization

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

openbaaronderwijszwolle.nl

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