Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

zeilenvandevries.nl

Zeilmakerij de Vries Maritiem - Dé zeilmaker van Friesland (2022)

Page Load Speed

7.5 sec in total

First Response

211 ms

Resources Loaded

5.6 sec

Page Rendered

1.7 sec

zeilenvandevries.nl screenshot

About Website

Visit zeilenvandevries.nl now to see the best up-to-date Zeilen Van De Vries content and also check out these interesting facts you probably never knew about zeilenvandevries.nl

Zeilmakerij De Vries Maritiem helpt u graag. Wij voorzien u van maatwerk zeilen, buiskappen, boottenten of reparatie. Ook buiten Friesland

Visit zeilenvandevries.nl

Key Findings

We analyzed Zeilenvandevries.nl page load time and found that the first response time was 211 ms and then it took 7.3 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

zeilenvandevries.nl performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value13.4 s

0/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value1,320 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.091

92/100

15%

TTI (Time to Interactive)

Value13.3 s

11/100

10%

Network Requests Diagram

zeilenvandevries.nl

211 ms

zeilmakerijdevriesmaritiem.nl

3126 ms

gtm.js

64 ms

formreset.min.css

189 ms

formsmain.min.css

291 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Zeilenvandevries.nl, 80% (77 requests) were made to Zeilmakerijdevriesmaritiem.nl and 6% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Zeilmakerijdevriesmaritiem.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 372.9 kB (12%)

Content Size

3.0 MB

After Optimization

2.6 MB

In fact, the total size of Zeilenvandevries.nl main page is 3.0 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. 70% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 294.4 kB

  • Original 338.5 kB
  • After minification 292.5 kB
  • After compression 44.1 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 46.0 kB, which is 14% 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 294.4 kB or 87% of the original size.

Image Optimization

-3%

Potential reduce by 63.6 kB

  • Original 2.2 MB
  • After minification 2.2 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. Zeilen Van De Vries images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 5.8 kB

  • Original 306.5 kB
  • After minification 306.5 kB
  • After compression 300.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-6%

Potential reduce by 9.2 kB

  • Original 146.5 kB
  • After minification 143.3 kB
  • After compression 137.3 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. Zeilenvandevries.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 43 (49%)

Requests Now

88

After Optimization

45

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zeilen Van De Vries. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zeilenvandevries.nl accessibility score

64

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

High

ARIA IDs are not unique

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.

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

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

zeilenvandevries.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

zeilenvandevries.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 Zeilenvandevries.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 Zeilenvandevries.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 data is detected on the main page of Zeilen Van De Vries. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: