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kerio.nl screenshot

Report Summary

  • 83

    Performance

    Renders faster than
    87% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 87

    SEO

    Google-friendlier than
    65% of websites

kerio.nl

Axigen Messaging - voor uw e-mail, agenda’s, notities, taken en contacten - BIT

Page Load Speed

1.6 sec in total

First Response

294 ms

Resources Loaded

1.2 sec

Page Rendered

131 ms

kerio.nl screenshot

About Website

Welcome to kerio.nl homepage info - get ready to check Kerio best content right away, or after learning these important things about kerio.nl

Bent u op zoek naar een zakelijke en schaalbare oplossing voor uw e-mail, agenda’s, notities, taken en contacten? BIT biedt u met Axigen Messaging hiervoor de oplossing én waarbij u kunt rekenen op 24...

Visit kerio.nl

Key Findings

We analyzed Kerio.nl page load time and found that the first response time was 294 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

kerio.nl performance score

83

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

86/100

25%

SI (Speed Index)

Value5.9 s

49/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

www.kerio.nl

294 ms

default.css

88 ms

jquery.js

275 ms

sbs930x180.html

252 ms

kerio-logo.png

93 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 86% of them (12 requests) were addressed to the original Kerio.nl, 7% (1 request) were made to Ac.kerio.com and 7% (1 request) were made to Adobe.com. The less responsive or slowest element that took the longest time to load (294 ms) belongs to the original domain Kerio.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 145.6 kB (75%)

Content Size

193.5 kB

After Optimization

47.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kerio.nl main page is 193.5 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. Only 10% of websites need less resources to load. Javascripts take 163.9 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 5.1 kB

  • Original 7.2 kB
  • After minification 5.7 kB
  • After compression 2.2 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 1.5 kB, which is 21% 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 5.1 kB or 70% of the original size.

Image Optimization

-20%

Potential reduce by 4.3 kB

  • Original 21.4 kB
  • After minification 17.1 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, Kerio needs image optimization as it can save up to 4.3 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-83%

Potential reduce by 135.6 kB

  • Original 163.9 kB
  • After minification 100.4 kB
  • After compression 28.3 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 135.6 kB or 83% of the original size.

CSS Optimization

-65%

Potential reduce by 630 B

  • Original 968 B
  • After minification 675 B
  • After compression 338 B

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. Kerio.nl needs all CSS files to be minified and compressed as it can save up to 630 B or 65% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

13

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kerio. According to our analytics all requests are already optimized.

Network Requests Diagram

www.kerio.nl

www.kerio.nl

294 ms

default.css

default.css

88 ms

jquery.js

jquery.js

275 ms

sbs930x180.html

sbs930x180.html

252 ms

kerio-logo.png

kerio-logo.png

93 ms

connect-logo-1.png

connect-logo-1.png

99 ms

control-logo-1.png

control-logo-1.png

185 ms

operator-logo-1.png

operator-logo-1.png

190 ms

samepage.png

samepage.png

187 ms

nl.png

nl.png

190 ms

gb.png

gb.png

202 ms

Kerio_Cloud-Solution-Distributor.png

Kerio_Cloud-Solution-Distributor.png

191 ms

bit-logo-3.png

bit-logo-3.png

276 ms

get_flash_player.gif

get_flash_player.gif

13 ms

Accessibility Review

kerio.nl accessibility score

82

Accessibility Issues

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

Buttons do not have an accessible name

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.

Best Practices

kerio.nl best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

kerio.nl SEO score

87

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

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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kerio.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 Kerio.nl 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

kerio.nl

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