Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

tijssen-zonwering.nl

Johan Willemsen Computers – automatisering, ICT – Opheusden

Page Load Speed

3.1 sec in total

First Response

448 ms

Resources Loaded

2.4 sec

Page Rendered

259 ms

tijssen-zonwering.nl screenshot

About Website

Welcome to tijssen-zonwering.nl homepage info - get ready to check Tijssen Zonwering best content right away, or after learning these important things about tijssen-zonwering.nl

Visit tijssen-zonwering.nl

Key Findings

We analyzed Tijssen-zonwering.nl page load time and found that the first response time was 448 ms and then it took 2.6 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

tijssen-zonwering.nl performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value15.3 s

1/100

10%

TBT (Total Blocking Time)

Value1,490 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.052

99/100

15%

TTI (Time to Interactive)

Value14.5 s

8/100

10%

Network Requests Diagram

tijssen-zonwering.nl

448 ms

mootools.js

740 ms

header.js

183 ms

bg.jpg

92 ms

zonwering_logo.jpg

366 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that all of those requests were addressed to Tijssen-zonwering.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (918 ms) belongs to the original domain Tijssen-zonwering.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 324.2 kB (34%)

Content Size

940.5 kB

After Optimization

616.3 kB

In fact, the total size of Tijssen-zonwering.nl main page is 940.5 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. 30% of websites need less resources to load. Images take 674.1 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 9.0 kB

  • Original 11.9 kB
  • After minification 11.4 kB
  • After compression 2.9 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 9.0 kB or 76% of the original size.

Image Optimization

-17%

Potential reduce by 112.9 kB

  • Original 674.1 kB
  • After minification 561.2 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, Tijssen Zonwering needs image optimization as it can save up to 112.9 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-80%

Potential reduce by 202.3 kB

  • Original 254.5 kB
  • After minification 190.7 kB
  • After compression 52.2 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 202.3 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

50

After Optimization

50

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tijssen Zonwering. According to our analytics all requests are already optimized.

Accessibility Review

tijssen-zonwering.nl accessibility score

81

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.

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

Best Practices

tijssen-zonwering.nl best practices score

83

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

Browser errors were logged to the console

SEO Factors

tijssen-zonwering.nl SEO score

80

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

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tijssen-zonwering.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 Tijssen-zonwering.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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