5.4 sec in total
1.5 sec
3.6 sec
255 ms
Click here to check amazing Kotle Verner content. Otherwise, check out these important facts you probably never knew about kotle-verner.cz
Kvalitní kotle na pelety a tuhá paliva. Zplyňovací kotle na dřevo a luxusní interiérové kotle a krbová kamna s výměníkem.
Visit kotle-verner.czWe analyzed Kotle-verner.cz page load time and found that the first response time was 1.5 sec and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
kotle-verner.cz performance score
name
value
score
weighting
Value3.2 s
42/100
10%
Value6.3 s
10/100
25%
Value5.0 s
64/100
10%
Value90 ms
99/100
30%
Value0
100/100
15%
Value3.4 s
93/100
10%
1540 ms
483 ms
1010 ms
889 ms
668 ms
Our browser made a total of 44 requests to load all elements on the main page. We found that 89% of them (39 requests) were addressed to the original Kotle-verner.cz, 5% (2 requests) were made to Common.bestof.cz and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Kotle-verner.cz.
Page size can be reduced by 381.3 kB (32%)
1.2 MB
826.3 kB
In fact, the total size of Kotle-verner.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. 25% of websites need less resources to load. Images take 827.5 kB which makes up the majority of the site volume.
Potential reduce by 18.2 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 6.7 kB, which is 29% 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 18.2 kB or 79% of the original size.
Potential reduce by 92.6 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, Kotle Verner needs image optimization as it can save up to 92.6 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 247.2 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 247.2 kB or 75% of the original size.
Potential reduce by 23.3 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. Kotle-verner.cz needs all CSS files to be minified and compressed as it can save up to 23.3 kB or 80% of the original size.
Number of requests can be reduced by 20 (47%)
43
23
The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kotle Verner. 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.
kotle-verner.cz
1540 ms
style3.css
483 ms
mootools-core-1.4.5.js
1010 ms
mootools-more-1.4.0.1FULL.js
889 ms
multibox.css
668 ms
overlay-SB.js
681 ms
multibox1.js
625 ms
MyTabs.js
267 ms
maps
30 ms
functions.js
363 ms
urchin.js
5 ms
general.css
124 ms
common.css
120 ms
bg-top.png
146 ms
bg-bottom.png
129 ms
automaticke-kotle-na-pelety-agropelety-a-obili11.jpg
958 ms
zplynovaci-kotle-na-kusove-drevo35.jpg
375 ms
automaticke-kotle-verner-a60274.jpg
923 ms
interierove-kotle-a-krbova-kamna-s-vymenikem-kopie23.jpg
417 ms
product-krb-kamna2.png
374 ms
product-kotle-kusove.png
388 ms
product-kotle-automaticke.png
614 ms
product-kotle-prumyslove.png
494 ms
logo.png
519 ms
lang-cz.png
540 ms
lang-sk.png
618 ms
lang-en.png
644 ms
lang-de.png
660 ms
lang-ru.png
735 ms
banner-arrow-left.png
728 ms
banner-arrow-right.png
765 ms
product-box.png
770 ms
news-shadow.png
966 ms
bg-languages.png
847 ms
button-blue.png
891 ms
icon-facebook.png
890 ms
icon-youtube.png
967 ms
icon-twitter.png
1008 ms
icon-google.png
1012 ms
logo-footer.png
1034 ms
button-support.png
1068 ms
button-write.png
1086 ms
__utm.gif
3 ms
print.css
132 ms
kotle-verner.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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a valid value for its [lang] attribute.
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
Form elements do not have associated labels
Links do not have a discernible name
kotle-verner.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
kotle-verner.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
CS
CZ
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kotle-verner.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed language. Our system also found out that Kotle-verner.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.
kotle-verner.cz
Open Graph description is not detected on the main page of Kotle Verner. 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: