Tools & Wizards About Us
energo-dialog.cz screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

energo-dialog.cz

PENB Brno - Energetický štítek po 1.7.2015, energetický průkaz | ENERGO DIALOG

Page Load Speed

2.8 sec in total

First Response

527 ms

Resources Loaded

2 sec

Page Rendered

272 ms

energo-dialog.cz screenshot

About Website

Welcome to energo-dialog.cz homepage info - get ready to check ENERGO DIALOG best content right away, or after learning these important things about energo-dialog.cz

Nabízíme vám zpracování energetického průkazu.Energetický štítek po 1.7.2015, energetický průkaz PENB Brno.

Visit energo-dialog.cz

Key Findings

We analyzed Energo-dialog.cz page load time and found that the first response time was 527 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

energo-dialog.cz performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value19.8 s

0/100

25%

SI (Speed Index)

Value9.3 s

12/100

10%

TBT (Total Blocking Time)

Value1,230 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

energo-dialog.cz

527 ms

jcemediabox.css

121 ms

style.css

224 ms

mootools-core.js

342 ms

core.js

231 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 94% of them (29 requests) were addressed to the original Energo-dialog.cz, 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (666 ms) belongs to the original domain Energo-dialog.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 459.2 kB (52%)

Content Size

884.7 kB

After Optimization

425.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Energo-dialog.cz main page is 884.7 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 539.1 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 11.7 kB

  • Original 16.9 kB
  • After minification 15.5 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. 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 11.7 kB or 69% of the original size.

Image Optimization

-5%

Potential reduce by 12.3 kB

  • Original 257.6 kB
  • After minification 245.3 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. ENERGO DIALOG images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 373.6 kB

  • Original 539.1 kB
  • After minification 531.7 kB
  • After compression 165.5 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 373.6 kB or 69% of the original size.

CSS Optimization

-87%

Potential reduce by 61.5 kB

  • Original 71.1 kB
  • After minification 53.4 kB
  • After compression 9.6 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. Energo-dialog.cz needs all CSS files to be minified and compressed as it can save up to 61.5 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (40%)

Requests Now

30

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ENERGO DIALOG. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

energo-dialog.cz

energo-dialog.cz

527 ms

jcemediabox.css

jcemediabox.css

121 ms

style.css

style.css

224 ms

mootools-core.js

mootools-core.js

342 ms

core.js

core.js

231 ms

caption.js

caption.js

235 ms

jcemediabox.js

jcemediabox.js

371 ms

mootools-more.js

mootools-more.js

600 ms

system.css

system.css

331 ms

general.css

general.css

369 ms

template.css

template.css

368 ms

jquery.js

jquery.js

558 ms

script.js

script.js

448 ms

system.css

system.css

121 ms

ga.js

ga.js

34 ms

Bottom_texture.jpg

Bottom_texture.jpg

120 ms

popup.html

popup.html

113 ms

tooltip.html

tooltip.html

116 ms

page_gl.jpg

page_gl.jpg

666 ms

logo.jpg

logo.jpg

118 ms

logo_new-therm.png

logo_new-therm.png

117 ms

vmenuitem.png

vmenuitem.png

207 ms

aes.png

aes.png

309 ms

nav.png

nav.png

209 ms

menuseparator.png

menuseparator.png

234 ms

menuitem.png

menuitem.png

236 ms

objednavkablank.png

objednavkablank.png

324 ms

mapka.png

mapka.png

322 ms

objednavkatl.png

objednavkatl.png

351 ms

stitekhome.jpg

stitekhome.jpg

583 ms

__utm.gif

__utm.gif

14 ms

Accessibility Review

energo-dialog.cz accessibility score

82

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

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

High

Links do not have a discernible name

Best Practices

energo-dialog.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

energo-dialog.cz SEO score

92

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Energo-dialog.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 Energo-dialog.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

energo-dialog.cz

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