3.5 sec in total
548 ms
2.7 sec
265 ms
Welcome to krystov.cz homepage info - get ready to check Krystov best content right away, or after learning these important things about krystov.cz
Plastová okna Brno, KRYŠTOV Group. Profily čtyři až sedm komor, až tři těsnění, krytá ocelová výztuž, vysoká pevnost a stálost. Kvalitní a prověřený český výrobce plastových oken a dveří.
Visit krystov.czWe analyzed Krystov.cz page load time and found that the first response time was 548 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
krystov.cz performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value6.0 s
13/100
25%
Value5.9 s
47/100
10%
Value10 ms
100/100
30%
Value0.001
100/100
15%
Value5.7 s
68/100
10%
548 ms
584 ms
325 ms
226 ms
434 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 85% of them (29 requests) were addressed to the original Krystov.cz, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Proverenaspolecnost.cz. The less responsive or slowest element that took the longest time to load (673 ms) belongs to the original domain Krystov.cz.
Page size can be reduced by 156.0 kB (21%)
731.9 kB
575.9 kB
In fact, the total size of Krystov.cz main page is 731.9 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. 30% of websites need less resources to load. Images take 475.2 kB which makes up the majority of the site volume.
Potential reduce by 16.6 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 2.8 kB, which is 12% 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 16.6 kB or 72% of the original size.
Potential reduce by 15.7 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. Krystov images are well optimized though.
Potential reduce by 106.2 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 106.2 kB or 50% of the original size.
Potential reduce by 17.5 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. Krystov.cz needs all CSS files to be minified and compressed as it can save up to 17.5 kB or 82% of the original size.
Number of requests can be reduced by 7 (24%)
29
22
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Krystov. 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 as a result speed up the page load time.
krystov.cz
548 ms
www.krystov.cz
584 ms
main.css
325 ms
jquery.lightbox-0.5.css
226 ms
jquery.js
434 ms
jquery.lightbox-0.5.js
331 ms
common-func.js
227 ms
swfobject.js
226 ms
jquery.js
655 ms
easySlider1.7.js
342 ms
pieczec.php
276 ms
header.jpg
334 ms
header.png
123 ms
facebook-share.png
122 ms
slide2.jpg
228 ms
slider-cnt-bg.png
122 ms
slide3.jpg
374 ms
slide4.jpg
448 ms
slide5.jpg
552 ms
arrow-right.png
239 ms
bar-plastove-okno-brugmann.jpg
343 ms
bar-okna-avantgarde-ovlo.jpg
456 ms
bar-plastove-okno-gealan.jpg
450 ms
bar-plastove-okno-salamander.jpg
459 ms
sedmikomorova-plastova-okna-salamander-ico.jpg
496 ms
sestikomorovy-profil-plastovych-oken-gealan-ico.jpg
568 ms
petikomorovy-profil-v-plastovych-oknech-brugmann-ico.jpg
668 ms
akcni-letak.jpg
673 ms
slider-cnt-bg.png
128 ms
retargeting.js
589 ms
ga.js
10 ms
__utm.gif
13 ms
prev.png
118 ms
next.png
117 ms
krystov.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.
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
krystov.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
krystov.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Krystov.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 Krystov.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.
krystov.cz
Open Graph description is not detected on the main page of Krystov. 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: