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onderzoekers.nl screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

onderzoekers.nl

Home - Onderzoekers.nl

Page Load Speed

4.1 sec in total

First Response

1.3 sec

Resources Loaded

2.6 sec

Page Rendered

191 ms

onderzoekers.nl screenshot

About Website

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

De Nederlandse Onderzoekers Site

Visit onderzoekers.nl

Key Findings

We analyzed Onderzoekers.nl page load time and found that the first response time was 1.3 sec and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

onderzoekers.nl performance score

0

Network Requests Diagram

onderzoekers.nl

1281 ms

css

36 ms

modernizr-2.5.2.min.js

452 ms

jquery.min.js

79 ms

jquery.imagesloaded.min.js

280 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 71% of them (36 requests) were addressed to the original Onderzoekers.nl, 8% (4 requests) were made to Fonts.gstatic.com and 6% (3 requests) were made to S.gravatar.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Onderzoekers.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 319.6 kB (49%)

Content Size

647.2 kB

After Optimization

327.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Onderzoekers.nl main page is 647.2 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. 40% of websites need less resources to load. Images take 291.0 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 76.8 kB

  • Original 92.6 kB
  • After minification 92.4 kB
  • After compression 15.8 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 76.8 kB or 83% of the original size.

Image Optimization

-25%

Potential reduce by 72.4 kB

  • Original 291.0 kB
  • After minification 218.6 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, Onderzoekers needs image optimization as it can save up to 72.4 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 161.2 kB

  • Original 252.3 kB
  • After minification 215.2 kB
  • After compression 91.1 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 161.2 kB or 64% of the original size.

CSS Optimization

-82%

Potential reduce by 9.2 kB

  • Original 11.3 kB
  • After minification 9.4 kB
  • After compression 2.1 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. Onderzoekers.nl needs all CSS files to be minified and compressed as it can save up to 9.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (50%)

Requests Now

46

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Onderzoekers. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

onderzoekers.nl

onderzoekers.nl

1281 ms

css

css

36 ms

modernizr-2.5.2.min.js

modernizr-2.5.2.min.js

452 ms

jquery.min.js

jquery.min.js

79 ms

jquery.imagesloaded.min.js

jquery.imagesloaded.min.js

280 ms

autoptimize_aef6b882cd4f6b7d9b2088e1d5a07882.php

autoptimize_aef6b882cd4f6b7d9b2088e1d5a07882.php

504 ms

autoptimize_ba1ac6b29e8794fcb731b22afd714345.php

autoptimize_ba1ac6b29e8794fcb731b22afd714345.php

171 ms

jquery.js

jquery.js

427 ms

jquery-migrate.min.js

jquery-migrate.min.js

217 ms

adplacer.js

adplacer.js

208 ms

script.js

script.js

173 ms

jquery.form.min.js

jquery.form.min.js

213 ms

scripts.js

scripts.js

237 ms

devicepx-jetpack.js

devicepx-jetpack.js

10 ms

gprofiles.js

gprofiles.js

57 ms

wpgroho.js

wpgroho.js

257 ms

wp-embed.min.js

wp-embed.min.js

296 ms

e-201611.js

e-201611.js

5 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

101 ms

tag

tag

270 ms

header.jpg

header.jpg

375 ms

logo.png

logo.png

96 ms

home-vacatures.jpg

home-vacatures.jpg

94 ms

home-werkzoekenden.jpg

home-werkzoekenden.jpg

95 ms

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95 ms

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12 ms

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11 ms

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35 ms

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36 ms

ga.js

ga.js

100 ms

hovercard.css

hovercard.css

28 ms

services.css

services.css

56 ms

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251 ms

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254 ms

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87 ms

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85 ms

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168 ms

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251 ms

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253 ms

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336 ms

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342 ms

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336 ms

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337 ms

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336 ms

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337 ms

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banner_da4561b14ef7fb87f61711c798595011.gif

419 ms

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15 ms

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25 ms

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87 ms

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86 ms

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autoptimize_46d55d83884f0f9e1443bf0e996ec61c.php

86 ms

SEO Factors

onderzoekers.nl SEO score

0

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 Onderzoekers.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 Onderzoekers.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

onderzoekers.nl

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