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csve.cz screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

csve.cz

ČSVE - Větrné elektrárny | Větrná energie

Page Load Speed

3 sec in total

First Response

488 ms

Resources Loaded

2.4 sec

Page Rendered

165 ms

csve.cz screenshot

About Website

Visit csve.cz now to see the best up-to-date Csve content for Czech Republic and also check out these interesting facts you probably never knew about csve.cz

Česká společnost pro větrnou energii je dobrovolná organizace fyzických a právnických osob, které pracují v oboru využívání větrné energie nebo mají k tomuto oboru zájmový vztah. Cílem společnosti je ...

Visit csve.cz

Key Findings

We analyzed Csve.cz page load time and found that the first response time was 488 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

csve.cz performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value7.6 s

26/100

10%

TBT (Total Blocking Time)

Value550 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

csve.cz

488 ms

csve.cz

560 ms

gtm.js

70 ms

css

44 ms

ext-all.css

102 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 86% of them (36 requests) were addressed to the original Csve.cz, 5% (2 requests) were made to Googletagmanager.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (661 ms) belongs to the original domain Csve.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 187.7 kB (13%)

Content Size

1.4 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Csve.cz main page is 1.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 17.5 kB

  • Original 22.3 kB
  • After minification 15.2 kB
  • After compression 4.8 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 7.0 kB, which is 32% 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 17.5 kB or 78% of the original size.

Image Optimization

-11%

Potential reduce by 134.1 kB

  • Original 1.3 MB
  • After minification 1.1 MB

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, Csve needs image optimization as it can save up to 134.1 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 7.8 kB

  • Original 79.8 kB
  • After minification 79.8 kB
  • After compression 72.0 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

-83%

Potential reduce by 28.3 kB

  • Original 34.3 kB
  • After minification 23.7 kB
  • After compression 6.0 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. Csve.cz needs all CSS files to be minified and compressed as it can save up to 28.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (29%)

Requests Now

38

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Csve. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

csve.cz

csve.cz

488 ms

csve.cz

csve.cz

560 ms

gtm.js

gtm.js

70 ms

css

css

44 ms

ext-all.css

ext-all.css

102 ms

screen.css

screen.css

389 ms

tiny-slideshow-style.css

tiny-slideshow-style.css

392 ms

map-style.css

map-style.css

392 ms

swfobject.js

swfobject.js

391 ms

jquery.js

jquery.js

392 ms

map.js.php

map.js.php

402 ms

scripts.js

scripts.js

392 ms

tiny-slideshow.js

tiny-slideshow.js

392 ms

landing

landing

249 ms

js

js

51 ms

reset.css

reset.css

134 ms

web-bg.jpg

web-bg.jpg

195 ms

menu-divider.jpg

menu-divider.jpg

96 ms

logo.png

logo.png

97 ms

claim.jpg

claim.jpg

98 ms

menu-active.jpg

menu-active.jpg

101 ms

banner-seminare-jaro-2024.jpg

banner-seminare-jaro-2024.jpg

470 ms

30-vyroci-banner.png

30-vyroci-banner.png

661 ms

den-vetru-banner.png

den-vetru-banner.png

573 ms

icon-zpravodaj.jpg

icon-zpravodaj.jpg

197 ms

icon-vzdelavani.jpg

icon-vzdelavani.jpg

205 ms

WindEurope_primary_RGB.jpg

WindEurope_primary_RGB.jpg

288 ms

HusumWind2015-logo.jpg

HusumWind2015-logo.jpg

292 ms

logo-Nodig-web.png

logo-Nodig-web.png

300 ms

icon-otazky.jpg

icon-otazky.jpg

357 ms

icon-instalace.jpg

icon-instalace.jpg

357 ms

icon-graf.jpg

icon-graf.jpg

358 ms

icon-statistika.jpg

icon-statistika.jpg

454 ms

icon-oze.jpg

icon-oze.jpg

454 ms

icon-proskoly.jpg

icon-proskoly.jpg

454 ms

icon-fb.jpg

icon-fb.jpg

526 ms

icon-rss.jpg

icon-rss.jpg

549 ms

left.png

left.png

548 ms

right.png

right.png

549 ms

db0c40815d4cfa28986b63f795e7b3da.js

db0c40815d4cfa28986b63f795e7b3da.js

479 ms

font

font

21 ms

print.css

print.css

96 ms

Accessibility Review

csve.cz accessibility score

75

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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 valid value for its [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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

csve.cz best practices score

58

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

csve.cz SEO score

69

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

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CZ

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Csve.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed language. Our system also found out that Csve.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

csve.cz

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