Tools & Wizards About Us
zivotni-prostredi.cz screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

zivotni-prostredi.cz

Ochrana životního prostředí, s.r.o. | Projektová, inženýrská, dodavatelská a konzultační činnost

Page Load Speed

2.9 sec in total

First Response

326 ms

Resources Loaded

2.4 sec

Page Rendered

187 ms

zivotni-prostredi.cz screenshot

About Website

Visit zivotni-prostredi.cz now to see the best up-to-date Zivotni Prostredi content and also check out these interesting facts you probably never knew about zivotni-prostredi.cz

Visit zivotni-prostredi.cz

Key Findings

We analyzed Zivotni-prostredi.cz page load time and found that the first response time was 326 ms and then it took 2.6 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

zivotni-prostredi.cz performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value4.8 s

68/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.5 s

71/100

10%

Network Requests Diagram

zivotni-prostredi.cz

326 ms

www.zivotni-prostredi.cz

939 ms

css_CKoWqiBj9gVXhPuDSnNphuEB0b0J2To76x0pX0EGqn4.css

112 ms

css_aPlVzOTIqeTpwJwee_6zfAIHJnVVCcT2yrpnsRMKc0M.css

212 ms

css_MnXiytJtb186Ydycnpwpw34cuUsHaKc80ey5LiQXhSY.css

214 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 95% of them (36 requests) were addressed to the original Zivotni-prostredi.cz, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (939 ms) belongs to the original domain Zivotni-prostredi.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 149.7 kB (46%)

Content Size

326.5 kB

After Optimization

176.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zivotni-prostredi.cz main page is 326.5 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. 25% of websites need less resources to load. Javascripts take 147.0 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 12.9 kB

  • Original 18.0 kB
  • After minification 16.7 kB
  • After compression 5.1 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 12.9 kB or 72% of the original size.

Image Optimization

-11%

Potential reduce by 13.7 kB

  • Original 121.5 kB
  • After minification 107.8 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. Obviously, Zivotni Prostredi needs image optimization as it can save up to 13.7 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

-62%

Potential reduce by 91.7 kB

  • Original 147.0 kB
  • After minification 128.5 kB
  • After compression 55.2 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 91.7 kB or 62% of the original size.

CSS Optimization

-78%

Potential reduce by 31.4 kB

  • Original 40.0 kB
  • After minification 38.7 kB
  • After compression 8.6 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. Zivotni-prostredi.cz needs all CSS files to be minified and compressed as it can save up to 31.4 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (20%)

Requests Now

35

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zivotni Prostredi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zivotni-prostredi.cz

zivotni-prostredi.cz

326 ms

www.zivotni-prostredi.cz

www.zivotni-prostredi.cz

939 ms

css_CKoWqiBj9gVXhPuDSnNphuEB0b0J2To76x0pX0EGqn4.css

css_CKoWqiBj9gVXhPuDSnNphuEB0b0J2To76x0pX0EGqn4.css

112 ms

css_aPlVzOTIqeTpwJwee_6zfAIHJnVVCcT2yrpnsRMKc0M.css

css_aPlVzOTIqeTpwJwee_6zfAIHJnVVCcT2yrpnsRMKc0M.css

212 ms

css_MnXiytJtb186Ydycnpwpw34cuUsHaKc80ey5LiQXhSY.css

css_MnXiytJtb186Ydycnpwpw34cuUsHaKc80ey5LiQXhSY.css

214 ms

css_RYLf-b0zG-2J6zXT30ONKd5njEotrOMKpwdrmw-Mxso.css

css_RYLf-b0zG-2J6zXT30ONKd5njEotrOMKpwdrmw-Mxso.css

216 ms

js_3jHghlMLrjr9xXAC0JufqSSch3oAbkZstSqYdc4uuck.js

js_3jHghlMLrjr9xXAC0JufqSSch3oAbkZstSqYdc4uuck.js

332 ms

js_gBoSdTsbO5TTeOmqEi5o8yZugwRoJUJi0t2MCEMdSqk.js

js_gBoSdTsbO5TTeOmqEi5o8yZugwRoJUJi0t2MCEMdSqk.js

222 ms

js_JfC8LjQ9_5eM8AEEsqJUtQw2WVRyklorApkSgf2YB94.js

js_JfC8LjQ9_5eM8AEEsqJUtQw2WVRyklorApkSgf2YB94.js

228 ms

js_lnGg3YezM0p2PaKLOYQz1guq44neOK-sk142swZhyp8.js

js_lnGg3YezM0p2PaKLOYQz1guq44neOK-sk142swZhyp8.js

317 ms

ga.js

ga.js

64 ms

body.png

body.png

110 ms

logo.png

logo.png

108 ms

search.png

search.png

106 ms

menu-main.png

menu-main.png

110 ms

home.png

home.png

108 ms

menu-leaf.png

menu-leaf.png

115 ms

main-front.png

main-front.png

210 ms

content-front.png

content-front.png

212 ms

cb_samson.jpg

cb_samson.jpg

319 ms

arrow-blue.png

arrow-blue.png

217 ms

line.png

line.png

216 ms

ostrava.jpg

ostrava.jpg

227 ms

plus.png

plus.png

315 ms

minus.png

minus.png

316 ms

service-blue.png

service-blue.png

324 ms

service-yellow.png

service-yellow.png

325 ms

service-green.png

service-green.png

339 ms

service-black.png

service-black.png

419 ms

cert-top.png

cert-top.png

422 ms

cert-content.png

cert-content.png

424 ms

cert-bottom.png

cert-bottom.png

430 ms

contact.png

contact.png

433 ms

koti_hyacint.jpg

koti_hyacint.jpg

451 ms

reference_foto_ac_pankrac_fasada.jpg

reference_foto_ac_pankrac_fasada.jpg

523 ms

letiste_vh.jpg

letiste_vh.jpg

526 ms

dinpro-regular.woff

dinpro-regular.woff

633 ms

__utm.gif

__utm.gif

25 ms

Accessibility Review

zivotni-prostredi.cz accessibility score

95

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

zivotni-prostredi.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

zivotni-prostredi.cz SEO score

92

Search Engine Optimization Advices

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 Zivotni-prostredi.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 Zivotni-prostredi.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

zivotni-prostredi.cz

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