Tools & Wizards About Us
vzduchotechnika-vkspraha.cz screenshot

Report Summary

  • 86

    Performance

    Renders faster than
    89% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

vzduchotechnika-vkspraha.cz

Vzduchotechnika Praha - VKS Praha, dodávka, montáž a servis vzduchotechniky.

Page Load Speed

2.2 sec in total

First Response

341 ms

Resources Loaded

1.7 sec

Page Rendered

220 ms

vzduchotechnika-vkspraha.cz screenshot

About Website

Welcome to vzduchotechnika-vkspraha.cz homepage info - get ready to check Vzduchotechnika VKS Praha best content right away, or after learning these important things about vzduchotechnika-vkspraha.cz

Vzduchotechnika VKS Praha nabízí dodávku, montáž a servis vzduchotechniky, opravy a repase, posudky, poradenskou činnost, montáž a servis klimatizací TOSHIBA, automatickou regulaci, měření výkonu a za...

Visit vzduchotechnika-vkspraha.cz

Key Findings

We analyzed Vzduchotechnika-vkspraha.cz page load time and found that the first response time was 341 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

vzduchotechnika-vkspraha.cz performance score

86

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value2.7 s

97/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.4 s

98/100

10%

Network Requests Diagram

vzduchotechnika-vkspraha.cz

341 ms

www.vzduchotechnika-vkspraha.cz

639 ms

style.css

347 ms

vks-head.jpg

785 ms

vks-obrazek2.jpg

493 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 Vzduchotechnika-vkspraha.cz, 14% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (785 ms) belongs to the original domain Vzduchotechnika-vkspraha.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 13.9 kB (11%)

Content Size

128.2 kB

After Optimization

114.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vzduchotechnika-vkspraha.cz main page is 128.2 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. Images take 94.3 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 8.2 kB

  • Original 10.3 kB
  • After minification 6.0 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 4.4 kB, which is 42% 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 8.2 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 413 B

  • Original 94.3 kB
  • After minification 93.9 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. Vzduchotechnika VKS Praha images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-82%

Potential reduce by 5.3 kB

  • Original 6.4 kB
  • After minification 3.5 kB
  • After compression 1.1 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. Vzduchotechnika-vkspraha.cz needs all CSS files to be minified and compressed as it can save up to 5.3 kB or 82% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vzduchotechnika VKS Praha. According to our analytics all requests are already optimized.

Network Requests Diagram

vzduchotechnika-vkspraha.cz

vzduchotechnika-vkspraha.cz

341 ms

www.vzduchotechnika-vkspraha.cz

www.vzduchotechnika-vkspraha.cz

639 ms

style.css

style.css

347 ms

vks-head.jpg

vks-head.jpg

785 ms

vks-obrazek2.jpg

vks-obrazek2.jpg

493 ms

vks-logo.gif

vks-logo.gif

264 ms

sleva-vkspraha-trvala.jpg

sleva-vkspraha-trvala.jpg

390 ms

kubes-logo.gif

kubes-logo.gif

281 ms

toshiba_logo-m.gif

toshiba_logo-m.gif

282 ms

nahled-katalog.jpg

nahled-katalog.jpg

664 ms

intro.jpg

intro.jpg

603 ms

ga.js

ga.js

18 ms

pozadi_pruh.jpg

pozadi_pruh.jpg

163 ms

__utm.gif

__utm.gif

11 ms

Accessibility Review

vzduchotechnika-vkspraha.cz accessibility score

85

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.

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

vzduchotechnika-vkspraha.cz best practices score

67

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

SEO Factors

vzduchotechnika-vkspraha.cz SEO score

77

Search Engine Optimization Advices

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 Vzduchotechnika-vkspraha.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 Vzduchotechnika-vkspraha.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

vzduchotechnika-vkspraha.cz

Open Graph description is not detected on the main page of Vzduchotechnika VKS Praha. 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: