Tools & Wizards About Us
vklass.se screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

vklass.se

Vklass

Page Load Speed

2.9 sec in total

First Response

223 ms

Resources Loaded

2.5 sec

Page Rendered

143 ms

vklass.se screenshot

About Website

Click here to check amazing Vklass content for Sweden. Otherwise, check out these important facts you probably never knew about vklass.se

Vklass är en skolplattform för elever, lärare föräldrar och skolledning. För mer information om lärplattformen se www.vklass.com

Visit vklass.se

Key Findings

We analyzed Vklass.se page load time and found that the first response time was 223 ms and then it took 2.7 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

vklass.se performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value5.6 s

54/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.151

75/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

Network Requests Diagram

vklass.se

223 ms

vklass.se

476 ms

Login.aspx

133 ms

Login.aspx

226 ms

cloudflare.min.js

28 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 62% of them (26 requests) were addressed to the original Vklass.se, 21% (9 requests) were made to User.vklass.se and 5% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Vklass.se.

Page Optimization Overview & Recommendations

Page size can be reduced by 544.6 kB (57%)

Content Size

956.6 kB

After Optimization

412.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vklass.se main page is 956.6 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. Javascripts take 674.0 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 12.6 kB

  • Original 19.9 kB
  • After minification 17.6 kB
  • After compression 7.2 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 2.3 kB, which is 11% 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 12.6 kB or 64% of the original size.

Image Optimization

-21%

Potential reduce by 49.6 kB

  • Original 234.9 kB
  • After minification 185.3 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, Vklass needs image optimization as it can save up to 49.6 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 460.2 kB

  • Original 674.0 kB
  • After minification 656.6 kB
  • After compression 213.8 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 460.2 kB or 68% of the original size.

CSS Optimization

-80%

Potential reduce by 22.3 kB

  • Original 27.9 kB
  • After minification 24.6 kB
  • After compression 5.6 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. Vklass.se needs all CSS files to be minified and compressed as it can save up to 22.3 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (50%)

Requests Now

38

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vklass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

vklass.se

vklass.se

223 ms

vklass.se

vklass.se

476 ms

Login.aspx

Login.aspx

133 ms

Login.aspx

Login.aspx

226 ms

cloudflare.min.js

cloudflare.min.js

28 ms

jquery.js

jquery.js

452 ms

javaFunctions.js

javaFunctions.js

445 ms

login-new.css

login-new.css

449 ms

login.js

login.js

447 ms

WebResource.axd

WebResource.axd

545 ms

WebResource.axd

WebResource.axd

221 ms

WebResource.axd

WebResource.axd

435 ms

ScriptResource.axd

ScriptResource.axd

650 ms

ScriptResource.axd

ScriptResource.axd

875 ms

ScriptResource.axd

ScriptResource.axd

957 ms

ScriptResource.axd

ScriptResource.axd

1076 ms

ScriptResource.axd

ScriptResource.axd

879 ms

ScriptResource.axd

ScriptResource.axd

663 ms

ScriptResource.axd

ScriptResource.axd

759 ms

ScriptResource.axd

ScriptResource.axd

762 ms

ScriptResource.axd

ScriptResource.axd

1163 ms

ScriptResource.axd

ScriptResource.axd

867 ms

ScriptResource.axd

ScriptResource.axd

1071 ms

ScriptResource.axd

ScriptResource.axd

981 ms

ga.js

ga.js

50 ms

38fc1bde-5e00-4582-96b9-f4b4e848184a.png

38fc1bde-5e00-4582-96b9-f4b4e848184a.png

1028 ms

f88ab483-cfe2-45fc-af99-e2ad3cc899ce.jpg

f88ab483-cfe2-45fc-af99-e2ad3cc899ce.jpg

490 ms

8c556144-65c9-475c-b763-698bf3b57a5c.jpg

8c556144-65c9-475c-b763-698bf3b57a5c.jpg

524 ms

f8b77b3b-ac0e-4fcc-90b3-2b73557196f9.jpg

f8b77b3b-ac0e-4fcc-90b3-2b73557196f9.jpg

550 ms

fd30079c-a382-4419-9657-1bbdc864d95f.jpg

fd30079c-a382-4419-9657-1bbdc864d95f.jpg

503 ms

54efc6ba-f1ea-46a1-8092-b5aa567dd9d3.jpg

54efc6ba-f1ea-46a1-8092-b5aa567dd9d3.jpg

507 ms

7c8b4a15-2c69-40a2-b8c4-573e86d9b995.jpg

7c8b4a15-2c69-40a2-b8c4-573e86d9b995.jpg

550 ms

e4600ff9-8086-48d0-8ba9-95fdc81019d3.jpg

e4600ff9-8086-48d0-8ba9-95fdc81019d3.jpg

915 ms

2b23fa90-551a-4c96-9b50-93321ea8875b.jpg

2b23fa90-551a-4c96-9b50-93321ea8875b.jpg

937 ms

bde9c2f3-9a93-4395-8a5c-4c768b69dd6e.jpg

bde9c2f3-9a93-4395-8a5c-4c768b69dd6e.jpg

935 ms

vklass-logo-small.png

vklass-logo-small.png

735 ms

logga_in_med_skolfederation.png

logga_in_med_skolfederation.png

847 ms

__utm.gif

__utm.gif

29 ms

analytics.js

analytics.js

25 ms

atrk.js

atrk.js

17 ms

atrk.gif

atrk.gif

27 ms

collect

collect

13 ms

Accessibility Review

vklass.se accessibility score

79

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

vklass.se 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

High

Page has valid source maps

SEO Factors

vklass.se SEO score

85

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

Language and Encoding

  • Language Detected

    SV

  • Language Claimed

    SV

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vklass.se can be misinterpreted by Google and other search engines. Our service has detected that Swedish is used on the page, and it matches the claimed language. Our system also found out that Vklass.se main page’s claimed encoding is . 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

vklass.se

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