Analyze DUIKEN - Dé website voor onderwatersporters uit Nederland en België is de website van het magazine DUIKEN en staat boordevol nieuws, reisinspiratie, medische tips, interessante video's en blogs van de redactie- en lezers. Daarnaast maak je maandelijks k...

Page load speed analysis

  • 45/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    619 ms

  • Resources loaded

    7.5 sec

  • Page rendered

    1.1 sec

  • Total page load time

    9.2 sec

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

We analyzed page load time and found that the first response time was 619 ms and then it took 8.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Page optimization

  • HTML 101.2 kB
    Images 9.3 MB
    Javascripts 920.8 kB
    CSS 429.8 kB

    In fact, the total size of main page is 10.8 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 9.3 MB which makes up the majority of the site volume.

    • Original 101.2 kB
    • After minification 61.8 kB
    • After compression 11.3 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 39.4 kB, which is 39% 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 89.9 kB or 89% of the original size.

    • Original 9.3 MB
    • After optimization 7.3 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. Obviously, DUIKEN needs image optimization as it can save up to 2.0 MB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 920.8 kB
    • After minification 710.1 kB
    • After compression 206.8 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 714.0 kB or 78% of the original size.

    • Original 429.8 kB
    • After minification 348.2 kB
    • After compression 63.5 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. needs all CSS files to be minified and compressed as it can save up to 366.3 kB or 85% of the original size.

Network requests diagram

  • style.css
  • color.css
  • rtl.css
  • font-awesome.min.css
  • bootstrap.css
  • flexslider.css
  • lightSlider.css
  • skin.css
  • prettyph.css
  • jquery.jscrollpane.css
  • LikeButton.css
  • jquery-1.11.0.min.js
  • lightbox.min.js
  • lightbox.css
  • pagination.css
  • bootstrap-responsive.css
  • smart.notify.reload.css
  • videoGallery_buttons.css
  • buttons.css
  • jquery-1.10.2.min.js
  • jquery.cookie.js
  • jquery.easing.1.3.js
  • LikeButton.js
  • LikeButton.js
  • LikeButton.js
  • adb.php
  • adb.php
  • bootstrap.min.js
  • jquery.flexslider.js
  • jquery.jcarousel.min.js
  • jquery.jscrollpane.min.js
  • jquery.scrollTo-min.js
  • functions.js
  • prettyph.js
  • jquery.lightSlider.min.js
  • jquery.address.js
  • jquery.mousewheel.min.js
  • css
  • css
  • css
  • css
  • css
  • jquery.selectbox-0.2.js
  • jquery.tooltipster.js
  • jquery.dotdotdot-1.5.1.js
  • jquery.tweet.js
  • jquery.tweet2.js
  • jquery.videoGallery.min.js
  • jquery.flexslider.js
  • captionator.js
  • jquery.address.js
  • jquery.mousewheel.min.js
  • jquery.jscrollpane.min.js
  • jquery.selectbox-0.2.js
  • jquery.tooltipster.js
  • jquery.dotdotdot-1.5.1.js
  • jquery.vplp.min.js
  • analytics.js
  • hqdefault.jpg
  • hqdefault.jpg
  • hqdefault.jpg
  • hqdefault.jpg
  • hqdefault.jpg
  • hqdefault.jpg
  • hqdefault.jpg
  • hqdefault.jpg
  • hqdefault.jpg
  • close.png
  • loading.gif
  • prev.png
  • next.png
  • logo.png
  • transpa2.png
  • facebook.png
  • Word_abonnee_klein.png
  • sdk.js
  • sub.jpg
  • play.png
  • collect
  • _xyN3apAT_yRRDeqB3sPRg.woff
  • OsJ2DjdpjqFRVUSto6IffD8E0i7KZn-EPnyo3HZu7kw.woff
  • _aijTyevf54tkVDLy-dlnD8E0i7KZn-EPnyo3HZu7kw.woff
  • 0ihfXUL2emPh0ROJezvraD8E0i7KZn-EPnyo3HZu7kw.woff
  • cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff
  • DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff
  • MTP_ySUJH_bn48VBG8sNSnhCUOGz7vYGh680lGh-uXM.woff
  • k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff
  • fontawesome-webfont.woff
  • duiksport.jpg
  • homepageprijsvraag.jpg
  • zoop.jpg
  • or.jpg
  • posted-by.png
  • suunto.jpg
  • 4_Tinnitus.jpg
  • flow_12__dsc4535.jpg
  • CanadaSealHunt.jpg
  • raad.jpg
  • obama-ziet-af-van-olieboringen-in-atlantische-oceaan.jpg
  • Someone_Sneezing.jpg
  • ka.jpg
  • JohnvanLent.jpg
  • 726556ed483d3683203.gif
  • 993564062c6cb3a554.gif
  • xd_arbiter.php
  • xd_arbiter.php
  • Hoefijzerwormen.jpg
  • Twiske_KureJan.jpg
  • P9130010.JPG
  • ThemavrijMijndahlia.jpg
  • Egypte1.JPG
  • Tramadol.jpg
  • cdtfourcault_lift.jpg
  • Trommelvlies_beschadigd.jpg
  • klikgebit-bovenkaak.jpg
  • 2_Antidepri.jpg
  • Blausen_0800_Sinusitis.png
  • oor.jpg
  • ig-follow.js
  • get-tweets1.1.php
  • get-tweets1.1.php
  • follow.js
  • migraine.jpg
  • netvlies.png
  • trap.jpg
  • igFollow.css
  • Silvia140702-235-1050x600.jpg
  • sidemount.jpg
  • blik.jpg
  • back2.png
  • next2.png
  • pettern2.png
  • 5d9a1ed00d.jpg
  • back.png
  • next.png
  • d26e0a43e5.jpg
  • 068a1494c6.jpg
  • 549a0be9c9.jpg
  • f57d4fc53e.jpg

Our browser made a total of 142 requests to load all elements on the main page. We found that 77% of them (110 requests) were addressed to the original, 6% (9 requests) were made to and 6% (8 requests) were made to The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain

Additional info on


The browser has sent 131 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DUIKEN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.











Possible request optimization













Normal result

IP address 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

DNS records

Type Host Target/ip TTL Other
A 299
NS 300
NS 300
NS 300

300 Mname:
Serial: 2020011500
Refresh: 3600
Retry: 1800
Expire: 1209600
Minimum-ttl: 86400

Language and encoding

Normal result


NL nl language flag


EN en language flag





Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it does not match the claimed English language. Our system also found out that 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 has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Poor result

Visitor World Map

Country of origin for 98.3% of all visits is Netherlands. It lies approximately 900 miles away from the server location (Finland) and such a distance cannot critically affect website speed, but moving the server closer to their user base in Netherlands can speed up page load time anyway.

Normal result

Good result

Social Sharing Optimization

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

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