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Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

isisart.nl

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Page Load Speed

9.6 sec in total

First Response

892 ms

Resources Loaded

6.9 sec

Page Rendered

1.8 sec

About Website

Welcome to isisart.nl homepage info - get ready to check Isisart best content for Netherlands right away, or after learning these important things about isisart.nl

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Visit isisart.nl

Key Findings

We analyzed Isisart.nl page load time and found that the first response time was 892 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

isisart.nl performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value6.8 s

34/100

10%

TBT (Total Blocking Time)

Value380 ms

70/100

30%

CLS (Cumulative Layout Shift)

Value0.197

63/100

15%

TTI (Time to Interactive)

Value11.2 s

19/100

10%

Network Requests Diagram

isisart.nl

892 ms

www.isisart.nl

1694 ms

jquery-ui-1.8.7.custom.css

169 ms

jquery-1.4.4.min.js

927 ms

jqueryadd2cart.js

899 ms

Our browser made a total of 199 requests to load all elements on the main page. We found that 90% of them (179 requests) were addressed to the original Isisart.nl, 3% (5 requests) were made to Google-analytics.com and 2% (4 requests) were made to Translate.googleapis.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Isisart.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 714.0 kB (15%)

Content Size

4.8 MB

After Optimization

4.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Isisart.nl main page is 4.8 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 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 133.5 kB

  • Original 160.0 kB
  • After minification 148.3 kB
  • After compression 26.6 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 133.5 kB or 83% of the original size.

Image Optimization

-8%

Potential reduce by 320.4 kB

  • Original 4.1 MB
  • After minification 3.8 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. Isisart images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 210.7 kB

  • Original 422.3 kB
  • After minification 415.6 kB
  • After compression 211.6 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 210.7 kB or 50% of the original size.

CSS Optimization

-83%

Potential reduce by 49.5 kB

  • Original 59.9 kB
  • After minification 44.2 kB
  • After compression 10.4 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. Isisart.nl needs all CSS files to be minified and compressed as it can save up to 49.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 76 (39%)

Requests Now

197

After Optimization

121

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 197 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isisart. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

isisart.nl accessibility score

80

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 input fields do not have accessible names

High

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

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

High

Links do not have a discernible name

Best Practices

isisart.nl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Browser errors were logged to the console

SEO Factors

isisart.nl SEO score

84

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isisart.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch 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 Isisart.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 Isisart. 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: