Tools & Wizards About Us
vliegtuigentekoop.nl screenshot

Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 44

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

vliegtuigentekoop.nl

Vliegtuigen te koop! Vliegtuigen kopen en verkopen doet u bij Vliegtuigentekoop.nl

Page Load Speed

5.5 sec in total

First Response

322 ms

Resources Loaded

4.8 sec

Page Rendered

355 ms

vliegtuigentekoop.nl screenshot

About Website

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

Vliegtuigen te koop. koop uw vliegtuig op De website waar Uw zoektocht naar een vliegtuig kopen, verkopen, of kopen begint , maar ook voor alles wat met vliegen te maken heeft. Bezoek óók onze interna...

Visit vliegtuigentekoop.nl

Key Findings

We analyzed Vliegtuigentekoop.nl page load time and found that the first response time was 322 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

vliegtuigentekoop.nl performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

37/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

vliegtuigentekoop.nl

322 ms

dcaccordion.css

97 ms

jquery.min.js

6 ms

jquery.cookie.js

295 ms

jquery.hoverIntent.minified.js

391 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 92% of them (56 requests) were addressed to the original Vliegtuigentekoop.nl, 3% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source Aircraftauctions.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 300.2 kB (12%)

Content Size

2.5 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vliegtuigentekoop.nl main page is 2.5 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. 35% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 46.3 kB

  • Original 55.9 kB
  • After minification 52.6 kB
  • After compression 9.6 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 46.3 kB or 83% of the original size.

Image Optimization

-10%

Potential reduce by 230.5 kB

  • Original 2.3 MB
  • After minification 2.1 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. Vliegtuigen Te Koop images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 22.5 kB

  • Original 98.7 kB
  • After minification 98.2 kB
  • After compression 76.3 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 22.5 kB or 23% of the original size.

CSS Optimization

-21%

Potential reduce by 887 B

  • Original 4.1 kB
  • After minification 4.1 kB
  • After compression 3.3 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. Vliegtuigentekoop.nl needs all CSS files to be minified and compressed as it can save up to 887 B or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (13%)

Requests Now

56

After Optimization

49

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vliegtuigen Te Koop. 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 as a result speed up the page load time.

Network Requests Diagram

vliegtuigentekoop.nl

vliegtuigentekoop.nl

322 ms

dcaccordion.css

dcaccordion.css

97 ms

jquery.min.js

jquery.min.js

6 ms

jquery.cookie.js

jquery.cookie.js

295 ms

jquery.hoverIntent.minified.js

jquery.hoverIntent.minified.js

391 ms

jquery.dcjqaccordion.2.7.min.js

jquery.dcjqaccordion.2.7.min.js

484 ms

blue.css

blue.css

189 ms

graphite.css

graphite.css

191 ms

grey.css

grey.css

189 ms

style.css

style.css

488 ms

marktplaats.js

marktplaats.js

487 ms

jquery.js

jquery.js

681 ms

ajax.js

ajax.js

489 ms

ajax3.js

ajax3.js

493 ms

twitterlogo.jpg

twitterlogo.jpg

3833 ms

nieuwbinnen.jpg

nieuwbinnen.jpg

13 ms

clouds3.jpg

clouds3.jpg

662 ms

vliegtuigentekooplogo.png

vliegtuigentekooplogo.png

192 ms

freecredits.gif

freecredits.gif

97 ms

search-icon.png

search-icon.png

102 ms

logo.jpg

logo.jpg

195 ms

e_flyer.jpg

e_flyer.jpg

197 ms

Orginele_APP_DH.png

Orginele_APP_DH.png

292 ms

navbg.gif

navbg.gif

199 ms

search_form_bg.png

search_form_bg.png

289 ms

knop2.png

knop2.png

291 ms

FAA_EASA_ARL_HP.png

FAA_EASA_ARL_HP.png

297 ms

logoLeng.png

logoLeng.png

674 ms

awb__banner_575_75.jpg

awb__banner_575_75.jpg

404 ms

412_0812iMoGFbAuddm1.jpg

412_0812iMoGFbAuddm1.jpg

479 ms

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411_1136Hm2L33KiGug9.jpg

481 ms

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402_0954Oe6giEi9lT6a.jpg

407 ms

394_08340gVjDdAFNUJZ.jpg

394_08340gVjDdAFNUJZ.jpg

504 ms

365_02458bYTd6B5bY9Z.jpg

365_02458bYTd6B5bY9Z.jpg

597 ms

361_1258emiyRa0VZdyH.jpg

361_1258emiyRa0VZdyH.jpg

668 ms

366_1428v76pRpBjPA8V.jpg

366_1428v76pRpBjPA8V.jpg

582 ms

359_2146WgLo8Wld5teF.jpg

359_2146WgLo8Wld5teF.jpg

606 ms

eurofpllogoSq.gif

eurofpllogoSq.gif

685 ms

364_0900Jn9MnIMy8Gln.jpg

364_0900Jn9MnIMy8Gln.jpg

696 ms

358_1910defvGqYLNAUl.jpg

358_1910defvGqYLNAUl.jpg

705 ms

logoENGsquer.png

logoENGsquer.png

760 ms

355_1414PpplJFOVA8vq.jpg

355_1414PpplJFOVA8vq.jpg

765 ms

381_0844vFOjTdPIJfWO.jpg

381_0844vFOjTdPIJfWO.jpg

769 ms

353_1818gdB1k2pl2BdO.jpg

353_1818gdB1k2pl2BdO.jpg

782 ms

349_2245tla69YeyWIGm.jpg

349_2245tla69YeyWIGm.jpg

794 ms

297_12252G3FKKMFmAAn.jpg

297_12252G3FKKMFmAAn.jpg

802 ms

logo-vierkant.png

logo-vierkant.png

949 ms

337_2008YbfHmTWVWN2l.jpg

337_2008YbfHmTWVWN2l.jpg

863 ms

337_2010Io4rQvbmPNhW.jpg

337_2010Io4rQvbmPNhW.jpg

866 ms

258_1718lwKza40oaUT4.jpg

258_1718lwKza40oaUT4.jpg

878 ms

258_1719jMvJRhGnhqrh.jpg

258_1719jMvJRhGnhqrh.jpg

891 ms

250_08121Z26FFQBjZkn.jpg

250_08121Z26FFQBjZkn.jpg

984 ms

ga.js

ga.js

13 ms

__utm.gif

__utm.gif

13 ms

Bose_December_logo.jpg

Bose_December_logo.jpg

867 ms

eurofpllogoL.gif

eurofpllogoL.gif

867 ms

bannerdayhaps575x75.jpg

bannerdayhaps575x75.jpg

881 ms

logo-banner.png

logo-banner.png

798 ms

donation.gif

donation.gif

850 ms

pointer_w.png

pointer_w.png

859 ms

feed-icon-10x10.gif

feed-icon-10x10.gif

774 ms

Accessibility Review

vliegtuigentekoop.nl accessibility score

44

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

vliegtuigentekoop.nl best practices score

42

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

Browser errors were logged to the console

SEO Factors

vliegtuigentekoop.nl SEO score

58

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vliegtuigentekoop.nl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Vliegtuigentekoop.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

vliegtuigentekoop.nl

Open Graph description is not detected on the main page of Vliegtuigen Te Koop. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: