Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

seat.nl

SEAT Nederland | SEAT.nl

Page Load Speed

4 sec in total

First Response

795 ms

Resources Loaded

2.8 sec

Page Rendered

348 ms

seat.nl screenshot

About Website

Click here to check amazing SEAT content for Netherlands. Otherwise, check out these important facts you probably never knew about seat.nl

Vind jouw SEAT op SEAT.nl!

Visit seat.nl

Key Findings

We analyzed Seat.nl page load time and found that the first response time was 795 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

seat.nl performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value8.5 s

17/100

10%

TBT (Total Blocking Time)

Value1,070 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.073

96/100

15%

TTI (Time to Interactive)

Value14.1 s

9/100

10%

Network Requests Diagram

www.seat.nl

795 ms

minified-1390144815.css

447 ms

customer-portal-master.less

385 ms

minified828800085.js

481 ms

minified-1317490975.js

196 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 42% of them (47 requests) were addressed to the original Seat.nl, 9% (10 requests) were made to Pon.blueconic.net and 7% (8 requests) were made to Cluster.ad-serverparc.nl. The less responsive or slowest element that took the longest time to load (950 ms) belongs to the original domain Seat.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (52%)

Content Size

2.3 MB

After Optimization

1.1 MB

In fact, the total size of Seat.nl main page is 2.3 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. Javascripts take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 107.0 kB

  • Original 134.3 kB
  • After minification 123.9 kB
  • After compression 27.3 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 107.0 kB or 80% of the original size.

Image Optimization

-4%

Potential reduce by 26.3 kB

  • Original 693.8 kB
  • After minification 667.5 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. SEAT images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 864.6 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 375.8 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 864.6 kB or 70% of the original size.

CSS Optimization

-82%

Potential reduce by 198.3 kB

  • Original 241.4 kB
  • After minification 241.4 kB
  • After compression 43.1 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. Seat.nl needs all CSS files to be minified and compressed as it can save up to 198.3 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 67 (68%)

Requests Now

99

After Optimization

32

The browser has sent 99 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SEAT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

seat.nl accessibility score

88

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

seat.nl best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

seat.nl SEO score

86

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

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

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 Seat.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 Seat.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

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