3.9 sec in total
358 ms
3.3 sec
288 ms
Visit slezak-rav.cz now to see the best up-to-date Slezak RAV content for Czech Republic and also check out these interesting facts you probably never knew about slezak-rav.cz
Naše produkty přidají vaší koupelně na kráse! Česká firma, výrobce vodovodních baterií. Záruky až 10 let. Za kvalitou našich výrobků si stojí. Objednávejte online.
Visit slezak-rav.czWe analyzed Slezak-rav.cz page load time and found that the first response time was 358 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
slezak-rav.cz performance score
name
value
score
weighting
Value5.0 s
10/100
10%
Value5.7 s
17/100
25%
Value11.2 s
5/100
10%
Value1,630 ms
12/100
30%
Value0.109
87/100
15%
Value19.1 s
3/100
10%
358 ms
926 ms
125 ms
238 ms
251 ms
Our browser made a total of 69 requests to load all elements on the main page. We found that 96% of them (66 requests) were addressed to the original Slezak-rav.cz, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Maps.google.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Slezak-rav.cz.
Page size can be reduced by 391.8 kB (34%)
1.2 MB
768.4 kB
In fact, the total size of Slezak-rav.cz main page is 1.2 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. 45% of websites need less resources to load. Images take 697.3 kB which makes up the majority of the site volume.
Potential reduce by 54.1 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 54.1 kB or 85% of the original size.
Potential reduce by 45.3 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. Slezak RAV images are well optimized though.
Potential reduce by 152.2 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 152.2 kB or 65% of the original size.
Potential reduce by 140.1 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. Slezak-rav.cz needs all CSS files to be minified and compressed as it can save up to 140.1 kB or 86% of the original size.
Number of requests can be reduced by 23 (37%)
63
40
The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slezak RAV. 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 9 to 1 for CSS and as a result speed up the page load time.
slezak-rav.cz
358 ms
www.slezak-rav.cz
926 ms
format.css
125 ms
boxes.css
238 ms
modules.css
251 ms
lightbox.css
247 ms
thickbox.css
248 ms
slider.css
248 ms
date.css
247 ms
selectbox.css
354 ms
globals.js.php
411 ms
custom.globals.js.php
419 ms
hover.js
370 ms
header.js
368 ms
swfobject.js
370 ms
ga.js
8 ms
ga-set.js
468 ms
jquery-1.6.min.js
621 ms
js
26 ms
js-set-fbbdb917cd7c37e574484b23594da142.js
620 ms
custom.jquery.init.js
509 ms
logo.png
125 ms
search_submit.png
126 ms
obrazek_22.jpg
405 ms
obrazek_23.jpg
447 ms
obrazek_28.jpg
608 ms
obrazek_29.jpg
379 ms
obrazek_30.jpg
567 ms
obrazek_31.jpg
566 ms
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493 ms
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513 ms
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569 ms
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615 ms
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629 ms
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685 ms
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687 ms
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689 ms
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723 ms
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732 ms
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740 ms
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806 ms
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806 ms
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809 ms
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843 ms
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851 ms
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856 ms
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926 ms
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928 ms
tn_obrazek_1390.jpg
926 ms
ico_rss.png
959 ms
tn_obrazek_61.jpg
972 ms
login_close.png
971 ms
__utm.gif
17 ms
top.png
986 ms
dd.png
984 ms
OpenSans-Semibold-webfont.woff
1089 ms
OpenSans-Light-webfont.woff
1083 ms
OpenSans-Bold-webfont.woff
1203 ms
OpenSans-Regular-webfont.woff
1147 ms
drop.png
927 ms
loadingAnimationSlider.gif
799 ms
bullets.png
901 ms
datum.png
860 ms
archiv.png
818 ms
mapa3.png
819 ms
sipky.png
852 ms
button.png
857 ms
sipka.png
865 ms
print.css
127 ms
slezak-rav.cz accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[role]s are not contained by their required parent element
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
slezak-rav.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
slezak-rav.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
Tap targets are not sized appropriately
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Slezak-rav.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 Slezak-rav.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.
slezak-rav.cz
Open Graph description is not detected on the main page of Slezak RAV. 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: