Tools & Wizards About Us
visualweb.cz screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

visualweb.cz

Tvorba webových aplikací a stránek, správa sítí - BAUER COMPUTER

Page Load Speed

2.4 sec in total

First Response

670 ms

Resources Loaded

1.5 sec

Page Rendered

204 ms

visualweb.cz screenshot

About Website

Welcome to visualweb.cz homepage info - get ready to check Visualweb best content right away, or after learning these important things about visualweb.cz

Naprogramujeme Vám webové stránky nebo webovou aplikaci. Postaráme se o Vaše počítače a programy. Ušetříme Vám peníze na IT technologie.

Visit visualweb.cz

Key Findings

We analyzed Visualweb.cz page load time and found that the first response time was 670 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

visualweb.cz performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value10.0 s

9/100

10%

TBT (Total Blocking Time)

Value720 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.9 s

21/100

10%

Network Requests Diagram

visualweb.cz

670 ms

VisualWeb.css

322 ms

WebResource.axd

362 ms

WebResource.axd

310 ms

ScriptResource.axd

427 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 88% of them (14 requests) were addressed to the original Visualweb.cz, 13% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (788 ms) belongs to the original domain Visualweb.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 541.3 kB (81%)

Content Size

669.6 kB

After Optimization

128.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Visualweb.cz main page is 669.6 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. 20% of websites need less resources to load. Javascripts take 619.7 kB which makes up the majority of the site volume.

HTML Optimization

-57%

Potential reduce by 10.5 kB

  • Original 18.4 kB
  • After minification 17.8 kB
  • After compression 7.9 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 10.5 kB or 57% of the original size.

Image Optimization

-2%

Potential reduce by 404 B

  • Original 19.1 kB
  • After minification 18.7 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. Visualweb images are well optimized though.

JavaScript Optimization

-84%

Potential reduce by 519.7 kB

  • Original 619.7 kB
  • After minification 403.5 kB
  • After compression 99.9 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 519.7 kB or 84% of the original size.

CSS Optimization

-86%

Potential reduce by 10.7 kB

  • Original 12.5 kB
  • After minification 9.8 kB
  • After compression 1.8 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. Visualweb.cz needs all CSS files to be minified and compressed as it can save up to 10.7 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (33%)

Requests Now

15

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Visualweb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

visualweb.cz

visualweb.cz

670 ms

VisualWeb.css

VisualWeb.css

322 ms

WebResource.axd

WebResource.axd

362 ms

WebResource.axd

WebResource.axd

310 ms

ScriptResource.axd

ScriptResource.axd

427 ms

ScriptResource.axd

ScriptResource.axd

788 ms

ScriptResource.axd

ScriptResource.axd

548 ms

default.aspx

default.aspx

590 ms

ga.js

ga.js

7 ms

__utm.gif

__utm.gif

12 ms

pozadi_body.jpg

pozadi_body.jpg

115 ms

VisualWeb.jpg

VisualWeb.jpg

162 ms

vwlogo.jpg

vwlogo.jpg

328 ms

obsah_top_ostry.png

obsah_top_ostry.png

122 ms

pozadi_menu.gif

pozadi_menu.gif

106 ms

col_top_ostry.png

col_top_ostry.png

121 ms

Accessibility Review

visualweb.cz accessibility score

97

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.

Best Practices

visualweb.cz best practices score

75

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

visualweb.cz SEO score

89

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Visualweb.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Visualweb.cz 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

visualweb.cz

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