Tools & Wizards About Us
justc.cz screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

justc.cz

Just Communication s.r.o. | Public Relations Agency

Page Load Speed

3.2 sec in total

First Response

317 ms

Resources Loaded

2.8 sec

Page Rendered

101 ms

justc.cz screenshot

About Website

Visit justc.cz now to see the best up-to-date Just C content and also check out these interesting facts you probably never knew about justc.cz

Just Communication je nezávislou PR & komunikační agenturou, která působí na trhu celé střední Evropy a prostřednictvím globální sítě i po celém světě.

Visit justc.cz

Key Findings

We analyzed Justc.cz page load time and found that the first response time was 317 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

justc.cz performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

Network Requests Diagram

justc.cz

317 ms

www.justc.cz

629 ms

css

21 ms

font-awesome.min.css

101 ms

frontend.css

202 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 82% of them (45 requests) were addressed to the original Justc.cz, 9% (5 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (641 ms) belongs to the original domain Justc.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 87.8 kB (13%)

Content Size

701.7 kB

After Optimization

613.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Justc.cz main page is 701.7 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. 50% of websites need less resources to load. Images take 494.1 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 19.8 kB

  • Original 25.8 kB
  • After minification 21.1 kB
  • After compression 6.0 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 4.8 kB, which is 18% 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 19.8 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 20.6 kB

  • Original 494.1 kB
  • After minification 473.5 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. Just C images are well optimized though.

JavaScript Optimization

-28%

Potential reduce by 46.5 kB

  • Original 168.1 kB
  • After minification 168.1 kB
  • After compression 121.6 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 46.5 kB or 28% of the original size.

CSS Optimization

-7%

Potential reduce by 906 B

  • Original 13.7 kB
  • After minification 13.7 kB
  • After compression 12.8 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. Justc.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (23%)

Requests Now

47

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Just C. 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 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

justc.cz

justc.cz

317 ms

www.justc.cz

www.justc.cz

629 ms

css

css

21 ms

font-awesome.min.css

font-awesome.min.css

101 ms

frontend.css

frontend.css

202 ms

bootstrap.css

bootstrap.css

288 ms

owl.carousel.css

owl.carousel.css

287 ms

jquery-1.8.2.min.js

jquery-1.8.2.min.js

388 ms

jquery.carouFredSel-6.2.1.js

jquery.carouFredSel-6.2.1.js

398 ms

bootstrap.js

bootstrap.js

300 ms

owl.carousel.min.js

owl.carousel.min.js

300 ms

mootools.js

mootools.js

489 ms

logo.png

logo.png

202 ms

header-justmedia.png

header-justmedia.png

100 ms

en.png

en.png

102 ms

cs.png

cs.png

106 ms

duraz-na-efekt.jpg

duraz-na-efekt.jpg

201 ms

individualni-pristup.jpg

individualni-pristup.jpg

201 ms

komplexni-reseni.jpg

komplexni-reseni.jpg

385 ms

zte1.jpg

zte1.jpg

205 ms

donate.jpg

donate.jpg

206 ms

eaton.jpg

eaton.jpg

293 ms

dial-telecom.jpg

dial-telecom.jpg

293 ms

ccdfd.jpg

ccdfd.jpg

291 ms

loccitane.jpg

loccitane.jpg

305 ms

subaru.jpg

subaru.jpg

308 ms

premier.jpg

premier.jpg

390 ms

softub.jpg

softub.jpg

389 ms

co8co.jpg

co8co.jpg

389 ms

tvoje-tvar-ma-znamy-hlas-uspech-poradu-stale-mnozi-nechapou.jpg

tvoje-tvar-ma-znamy-hlas-uspech-poradu-stale-mnozi-nechapou.jpg

409 ms

nubia-my-prague-inspirovany-prahou.jpg

nubia-my-prague-inspirovany-prahou.jpg

508 ms

medialni-analyzy-a-monitoring-medii.jpg

medialni-analyzy-a-monitoring-medii.jpg

482 ms

trendy-pr-2015.jpg

trendy-pr-2015.jpg

485 ms

zvyste-efektivitu-pr-pomoci-seo1.jpg

zvyste-efektivitu-pr-pomoci-seo1.jpg

488 ms

logo-footer.png

logo-footer.png

486 ms

marketing.png

marketing.png

473 ms

branding.png

branding.png

544 ms

webs.png

webs.png

546 ms

social.png

social.png

548 ms

media.png

media.png

548 ms

globe.png

globe.png

573 ms

ul-li-blue.png

ul-li-blue.png

571 ms

ul-li-red.png

ul-li-red.png

641 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVcUwaEQXjM.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVcUwaEQXjM.ttf

35 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4uaVcUwaEQXjM.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4uaVcUwaEQXjM.ttf

63 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4uaVcUwaEQXjM.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4uaVcUwaEQXjM.ttf

69 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVcUwaEQXjM.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVcUwaEQXjM.ttf

70 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4uaVcUwaEQXjM.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4uaVcUwaEQXjM.ttf

84 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

641 ms

L.js

L.js

606 ms

analytics.js

analytics.js

20 ms

collect

collect

15 ms

js

js

67 ms

left.png

left.png

100 ms

right.png

right.png

99 ms

Accessibility Review

justc.cz accessibility score

89

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.

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

Links do not have a discernible name

Best Practices

justc.cz best practices score

50

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

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

justc.cz SEO score

91

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

High

Tap targets are not sized appropriately

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Document uses plugins

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 Justc.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 Justc.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

justc.cz

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