3.2 sec in total
746 ms
1.9 sec
515 ms
Welcome to vrtulnikova-skola.cz homepage info - get ready to check Vrtulnikova Skola best content right away, or after learning these important things about vrtulnikova-skola.cz
Specializujeme se na speciální činnosti, výcvik pilotů a zážitkové lety s moderními vrtulníky. Zajišťujeme údržbu a prodej vrtulníků Guimbal Cabri G2
Visit vrtulnikova-skola.czWe analyzed Vrtulnikova-skola.cz page load time and found that the first response time was 746 ms and then it took 2.4 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.
vrtulnikova-skola.cz performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value16.8 s
0/100
25%
Value8.7 s
16/100
10%
Value120 ms
97/100
30%
Value0
100/100
15%
Value11.4 s
19/100
10%
746 ms
195 ms
196 ms
482 ms
291 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that 71% of them (37 requests) were addressed to the original Vrtulnikova-skola.cz, 6% (3 requests) were made to Facebook.com and 4% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Vrtulnikova-skola.cz.
Page size can be reduced by 575.1 kB (24%)
2.4 MB
1.8 MB
In fact, the total size of Vrtulnikova-skola.cz main page is 2.4 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. 55% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 91.0 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. 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 91.0 kB or 77% of the original size.
Potential reduce by 184.2 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. Vrtulnikova Skola images are well optimized though.
Potential reduce by 268.4 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 268.4 kB or 69% of the original size.
Potential reduce by 31.6 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. Vrtulnikova-skola.cz needs all CSS files to be minified and compressed as it can save up to 31.6 kB or 87% of the original size.
Number of requests can be reduced by 9 (18%)
51
42
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vrtulnikova Skola. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.
vrtulnikova-skola.cz
746 ms
main14.css
195 ms
stdpage14.css
196 ms
jquery-1.6.1.min.js
482 ms
prettyPhoto.css
291 ms
jquery.prettyPhoto.js
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hotjar-111466.js
138 ms
all.js
18 ms
modules-043c1e6abe660c48857202e419ff9d8a.js
28 ms
pinit.js
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ga.js
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all.js
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Master_back01.jpg
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back_mple_gray.png
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back_mple_white.png
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menu_top_border.png
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menu_top_back.jpg
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main_logo_top.png
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menu_spacer.png
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menu_ul_top.png
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box_grey_bck.png
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menu_ul_2.png
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box_blue1_bck.png
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box_blue12_sp.png
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box_blue2_bck.png
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box_orange_bck.png
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box_prodejg2.jpg
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WebResource.axd
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ph_nohands.png
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filip-solo1.jpg
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filip-solo2.jpg
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charvat1.jpg
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charvat2.jpg
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solo_stano1.jpg
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solo_stano2.jpg
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bottom_logo.jpg
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guimbal-cz.jpg
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xd_arbiter.php
25 ms
xd_arbiter.php
37 ms
pinit_main.js
30 ms
like.php
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visit-data
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vrtulnikova-skola.cz accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Image elements do not have [alt] attributes
Links do not have a discernible name
vrtulnikova-skola.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
Issues were logged in the Issues panel in Chrome Devtools
vrtulnikova-skola.cz SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vrtulnikova-skola.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 Vrtulnikova-skola.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.
vrtulnikova-skola.cz
Open Graph description is not detected on the main page of Vrtulnikova Skola. 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: