Tools & Wizards About Us
silverjet.nl screenshot

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

silverjet.nl

Luxe vakanties tot in detail verzorgd - Silverjet Vakanties

Page Load Speed

9.1 sec in total

First Response

374 ms

Resources Loaded

5.6 sec

Page Rendered

3.1 sec

silverjet.nl screenshot

About Website

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

Bent u toe aan een luxe vakantie die volledig naar uw wensen wordt samengesteld? Dan is reizen met Silverjet Vakanties de beste keuze! Bekijk ons aanbod

Visit silverjet.nl

Key Findings

We analyzed Silverjet.nl page load time and found that the first response time was 374 ms and then it took 8.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

silverjet.nl performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value14.7 s

0/100

25%

SI (Speed Index)

Value11.6 s

5/100

10%

TBT (Total Blocking Time)

Value1,550 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.469

18/100

15%

TTI (Time to Interactive)

Value14.9 s

8/100

10%

Network Requests Diagram

silverjet.nl

374 ms

www.silverjet.nl

1603 ms

gtm.js

75 ms

bootstrap.min.css

199 ms

style.css

454 ms

Our browser made a total of 179 requests to load all elements on the main page. We found that 87% of them (155 requests) were addressed to the original Silverjet.nl, 9% (17 requests) were made to Exch.silverjet.nl and 2% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.2 sec) relates to the external source Exch.silverjet.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 857.6 kB (20%)

Content Size

4.3 MB

After Optimization

3.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Silverjet.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. 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 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 392.0 kB

  • Original 433.5 kB
  • After minification 282.0 kB
  • After compression 41.6 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. This page needs HTML code to be minified as it can gain 151.5 kB, which is 35% 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 392.0 kB or 90% of the original size.

Image Optimization

-4%

Potential reduce by 144.7 kB

  • Original 3.4 MB
  • After minification 3.3 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. Silverjet images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 203.3 kB

  • Original 295.1 kB
  • After minification 295.1 kB
  • After compression 91.7 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 203.3 kB or 69% of the original size.

CSS Optimization

-71%

Potential reduce by 117.6 kB

  • Original 165.0 kB
  • After minification 165.0 kB
  • After compression 47.4 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. Silverjet.nl needs all CSS files to be minified and compressed as it can save up to 117.6 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (4%)

Requests Now

164

After Optimization

158

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 164 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Silverjet. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

silverjet.nl

silverjet.nl

374 ms

www.silverjet.nl

www.silverjet.nl

1603 ms

gtm.js

gtm.js

75 ms

bootstrap.min.css

bootstrap.min.css

199 ms

style.css

style.css

454 ms

logo-silverjet-2024.svg

logo-silverjet-2024.svg

374 ms

65e887293b6c1610060877.jpg

65e887293b6c1610060877.jpg

876 ms

65e887e951ca0858683489.jpg

65e887e951ca0858683489.jpg

787 ms

Vakantie%20Award%202024-luxe%20vakanties.svg

Vakantie%20Award%202024-luxe%20vakanties.svg

1881 ms

combined.js

combined.js

968 ms

landing

landing

247 ms

js

js

70 ms

fbevents.js

fbevents.js

235 ms

bat.js

bat.js

234 ms

destination

destination

232 ms

955707a252c043b40a5f549b5857df7b955707a252c043-40a.js

955707a252c043b40a5f549b5857df7b955707a252c043-40a.js

862 ms

collect

collect

1105 ms

collect

collect

883 ms

collect

collect

1241 ms

collect

collect

1160 ms

collect

collect

956 ms

collect

collect

875 ms

collect

collect

1236 ms

collect

collect

1246 ms

collect

collect

1471 ms

collect

collect

1430 ms

collect

collect

1496 ms

v.svg

v.svg

122 ms

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346 ms

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347 ms

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436 ms

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res-427697320-res-165439824-res-1366684377-0539705280RHCS_POOL_01_med.jpg

437 ms

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526 ms

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526 ms

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526 ms

615 ms

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614 ms

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616 ms

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615 ms

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702 ms

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704 ms

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702 ms

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704 ms

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812 ms

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812 ms

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812 ms

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813 ms

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814 ms

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880 ms

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880 ms

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882 ms

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882 ms

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894 ms

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968 ms

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969 ms

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970 ms

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973 ms

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975 ms

collect

collect

2073 ms

collect

collect

1622 ms

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938 ms

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920 ms

collect

collect

1448 ms

MrEavesXLModOT-Reg.woff

MrEavesXLModOT-Reg.woff

718 ms

MrEavesXLModOT-Bold.woff

MrEavesXLModOT-Bold.woff

752 ms

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MrEavesXLModOT-Light.woff

663 ms

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740 ms

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739 ms

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653 ms

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653 ms

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653 ms

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712 ms

photos

photos

628 ms

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628 ms

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632 ms

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654 ms

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625 ms

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625 ms

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626 ms

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633 ms

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collect

1110 ms

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collect

1075 ms

collect

collect

2180 ms

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553 ms

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605 ms

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606 ms

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606 ms

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613 ms

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641 ms

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625 ms

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626 ms

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627 ms

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635 ms

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671 ms

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624 ms

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625 ms

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626 ms

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633 ms

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630 ms

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582 ms

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622 ms

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590 ms

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591 ms

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600 ms

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536 ms

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561 ms

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597 ms

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597 ms

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599 ms

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551 ms

563 ms

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588 ms

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615 ms

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593 ms

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538 ms

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550 ms

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562 ms

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585 ms

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588 ms

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537 ms

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538 ms

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550 ms

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557 ms

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543 ms

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611 ms

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Accessibility Review

silverjet.nl accessibility score

91

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

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

Best Practices

silverjet.nl best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

silverjet.nl SEO score

88

Search Engine Optimization Advices

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

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

High

Tap targets are not sized appropriately

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 Silverjet.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 Silverjet.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

silverjet.nl

Open Graph description is not detected on the main page of Silverjet. 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: