Access rovs.cz. Rožnovský vzdělávací servis s.r.o. - kurzy,semináře,rekvalifikace,BOZP

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

48/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

rovs.cz

374 ms

www.rovs.cz

844 ms

layout.css

484 ms

popup.css

243 ms

jquery.fancybox-1.3.0.css

361 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 95% of them (52 requests) were addressed to the original Rovs.cz, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Toplist.cz. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Rovs.cz.

Content Size

1.0 MB

After Optimization

603.8 kB

In fact, the total size of Rovs.cz main page is 1.0 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. 30% of websites need less resources to load. Images take 524.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 49.4 kB

Original 62.1 kB
After minification 57.3 kB
After compression 12.8 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. 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 49.4 kB or 79% of the original size.

Image Optimization

-11%

Potential reduce by 55.1 kB

Original 524.9 kB
After minification 469.8 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, Rovs needs image optimization as it can save up to 55.1 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

-69%

Potential reduce by 241.1 kB

Original 351.5 kB
After minification 337.4 kB
After compression 110.4 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 241.1 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 56.8 kB

Original 67.6 kB
After minification 52.0 kB
After compression 10.8 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. Rovs.cz needs all CSS files to be minified and compressed as it can save up to 56.8 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rovs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Rovs.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 Rovs.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

rovs.cz

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Rožnovský vzdělávací servis s.r.o. - kurzy,semináře,rekvalifikace,BOZP

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

rovs.cz

www.rovs.cz

layout.css

popup.css

jquery.fancybox-1.3.0.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

rovs.cz

www.rovs.cz

layout.css

popup.css

jquery.fancybox-1.3.0.css

jquery-ui-1.8.16.custom.css

jquery-1.7.1.min.js

jquery.fancybox-1.3.0.pack.js

jquery.lightbox_me.js

jquery-ui-1.8.16.custom.min.js

jquery.ui.datepicker-cs.js

start.js

forms.js

tabs.js

tabs-scrool.js

actuality-slider.js

ga.js

dot.asp

header-back.png

header-image.jpg

header-logo.png

facebook-icon.png

icon-basket.png

shaddow-r.png

shaddow.png

title-back.png

content-back-2c.png

logo-mini.png

pobocka-brno-1-m.jpg

pobocka-brno-2-m.jpg

pobocka-brno-3-m.jpg

pobocka-roznov-1-m.jpg

pobocka-roznov-2-m.jpg

pobocka-ostrava-1-m.jpg

pobocka-ostrava-2-m.jpg

pobocka-ostrava-3-m.jpg

akreditace-prevence-rizik-mspv-1_m.jpg

pdf-icon.png

akreditace-prevence-rizik-mspv-2_m.jpg

autorizace-technik-bozp-1_m.jpg

autorizace-technik-bozp-2_m.jpg

akreditace-koordinator-mspv-1_m.jpg

akreditace-koordinator-mspv-2_m.jpg