4 sec in total
386 ms
3.5 sec
118 ms
Welcome to rolkov.cz homepage info - get ready to check Rolkov best content right away, or after learning these important things about rolkov.cz
Kvalitní kovovýroba, rotační obrábění, kovové hřídele a hmoždinky, kotevní technika, kovové napínáky, úsečová (Woodruffova) pera, polygrafie, atd.
Visit rolkov.czWe analyzed Rolkov.cz page load time and found that the first response time was 386 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.
rolkov.cz performance score
name
value
score
weighting
Value1.8 s
89/100
10%
Value3.3 s
69/100
25%
Value2.3 s
99/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value1.8 s
100/100
10%
386 ms
575 ms
446 ms
94 ms
185 ms
Our browser made a total of 17 requests to load all elements on the main page. We found that 82% of them (14 requests) were addressed to the original Rolkov.cz, 12% (2 requests) were made to Piwik.jni.cz and 6% (1 request) were made to Piwik.jsem-na-internetu.cz. The less responsive or slowest element that took the longest time to load (970 ms) relates to the external source Piwik.jni.cz.
Page size can be reduced by 5.2 kB (8%)
65.6 kB
60.4 kB
In fact, the total size of Rolkov.cz main page is 65.6 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. Only 5% of websites need less resources to load. Images take 57.8 kB which makes up the majority of the site volume.
Potential reduce by 3.7 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 3.7 kB or 57% of the original size.
Potential reduce by 1.3 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. Rolkov images are well optimized though.
Potential reduce by 162 B
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. Rolkov.cz needs all CSS files to be minified and compressed as it can save up to 162 B or 13% of the original size.
Number of requests can be reduced by 6 (50%)
12
6
The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rolkov. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
rolkov.cz
386 ms
www.rolkov.cz
575 ms
www.rolkov.cz
446 ms
rolkov.css
94 ms
cz.gif
185 ms
de.gif
277 ms
rolkov_zahlavi.jpg
464 ms
rolkov_zahlavi_presah.jpg
279 ms
osvedceni-o-zapisu-uzitneho-vzoru_nahled.jpg
281 ms
piwik.js
601 ms
rolkov_zahlavi_podklad.gif
188 ms
pozadi_hlm.gif
197 ms
sipka.gif
275 ms
obr.gif
277 ms
dole.gif
279 ms
piwik.jni.cz
397 ms
piwik.jni.cz
970 ms
rolkov.cz accessibility score
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 [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
Image elements do not have [alt] attributes
Links do not have a discernible name
rolkov.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
Browser errors were logged to the console
rolkov.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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rolkov.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 Rolkov.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.
rolkov.cz
Open Graph description is not detected on the main page of Rolkov. 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: