Tools & Wizards About Us

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 55

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

visionsystems.de

Vision Systems GmbH - Data Communication,Network Device Server,Industrial PC-Systems und Panel PCs - Norderstedt

Page Load Speed

3.1 sec in total

First Response

303 ms

Resources Loaded

2.7 sec

Page Rendered

133 ms

About Website

Click here to check amazing Vision Systems content. Otherwise, check out these important facts you probably never knew about visionsystems.de

VS Vision Systems, Norderstedt, liefert folgende hochwertige Produkte aus dem Bereich der Informations- und Kommunikationstechnik: Multiport Serial (RS-232, RS-422/485) Boards, Industrie PC Produkte (...

Visit visionsystems.de

Key Findings

We analyzed Visionsystems.de page load time and found that the first response time was 303 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

visionsystems.de performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

87/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

18/100

25%

SI (Speed Index)

Value5.3 s

57/100

10%

TBT (Total Blocking Time)

Value560 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

visionsystems.de

303 ms

visionsystems.de

439 ms

main.css

120 ms

ua.js

235 ms

MM_Images.js

301 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 82% of them (47 requests) were addressed to the original Visionsystems.de, 12% (7 requests) were made to Google-analytics.com and 2% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (630 ms) belongs to the original domain Visionsystems.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 74.3 kB (11%)

Content Size

656.1 kB

After Optimization

581.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Visionsystems.de main page is 656.1 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 552.2 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 18.5 kB

  • Original 23.6 kB
  • After minification 18.8 kB
  • After compression 5.2 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 4.9 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 18.5 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 8.3 kB

  • Original 552.2 kB
  • After minification 543.9 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. Vision Systems images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 36.6 kB

  • Original 67.3 kB
  • After minification 53.8 kB
  • After compression 30.6 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 36.6 kB or 54% of the original size.

CSS Optimization

-83%

Potential reduce by 10.9 kB

  • Original 13.1 kB
  • After minification 9.7 kB
  • After compression 2.2 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. Visionsystems.de needs all CSS files to be minified and compressed as it can save up to 10.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (38%)

Requests Now

53

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vision Systems. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

visionsystems.de accessibility score

55

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

Best Practices

visionsystems.de best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

visionsystems.de SEO score

91

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 Visionsystems.de 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 Visionsystems.de 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 Vision Systems. 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: