2.6 sec in total
586 ms
1.7 sec
352 ms
Click here to check amazing Qr content for Czech Republic. Otherwise, check out these important facts you probably never knew about qr.cz
Aktuální informace o nejnovějších programech a nástrojích nejen pro odborníky
Visit qr.czWe analyzed Qr.cz page load time and found that the first response time was 586 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
qr.cz performance score
name
value
score
weighting
Value2.6 s
64/100
10%
Value2.7 s
86/100
25%
Value3.6 s
87/100
10%
Value380 ms
70/100
30%
Value0.005
100/100
15%
Value3.7 s
90/100
10%
586 ms
331 ms
242 ms
242 ms
216 ms
Our browser made a total of 71 requests to load all elements on the main page. We found that 77% of them (55 requests) were addressed to the original Qr.cz, 7% (5 requests) were made to Pagead2.googlesyndication.com and 6% (4 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (719 ms) belongs to the original domain Qr.cz.
Page size can be reduced by 54.0 kB (35%)
153.9 kB
99.8 kB
In fact, the total size of Qr.cz main page is 153.9 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. 25% of websites need less resources to load. HTML takes 55.3 kB which makes up the majority of the site volume.
Potential reduce by 41.5 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 41.5 kB or 75% of the original size.
Potential reduce by 1.2 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. Qr images are well optimized though.
Potential reduce by 7.7 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 7.7 kB or 18% of the original size.
Potential reduce by 3.6 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. Qr.cz needs all CSS files to be minified and compressed as it can save up to 3.6 kB or 77% of the original size.
Number of requests can be reduced by 32 (46%)
70
38
The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Qr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.
qr.cz
586 ms
style2003.css
331 ms
divstyle.css
242 ms
ipo.gif
242 ms
iso.gif
216 ms
ipa.gif
217 ms
ict.gif
221 ms
ist.gif
277 ms
iut.gif
277 ms
code.js
215 ms
show_ads.js
8 ms
ga.js
31 ms
s_maxleft.gif
211 ms
s_left.gif
243 ms
s_right.gif
243 ms
s_maxright.gif
275 ms
t_tip.gif
274 ms
del01date.gif
347 ms
del02date.gif
347 ms
count.asp
308 ms
bc04.gif
229 ms
c_comm.gif
230 ms
kolo.jpg
396 ms
podpis.gif
276 ms
_news.gif
304 ms
_links.gif
304 ms
_search.gif
317 ms
_download.gif
322 ms
_board.gif
396 ms
_feedback.gif
409 ms
_about.gif
412 ms
_archiv.gif
425 ms
_refresh.gif
430 ms
delimiter.gif
516 ms
kolo01.jpg
515 ms
header00.jpg
516 ms
header01.jpg
519 ms
setrefresh.gif
543 ms
sethomepage.gif
542 ms
setbookmark.gif
629 ms
spacer.gif
631 ms
_pool.gif
534 ms
_adm.gif
537 ms
_newsa.gif
555 ms
_linksa.gif
560 ms
_downloada.gif
641 ms
_boarda.gif
644 ms
_feedbacka.gif
652 ms
_abouta.gif
653 ms
ca-pub-7541784889141326.js
128 ms
zrt_lookup.html
48 ms
show_ads_impl.js
54 ms
_poola.gif
641 ms
_archiva.gif
644 ms
_refresha.gif
716 ms
__utm.gif
25 ms
_adma.gif
695 ms
_searcha.gif
709 ms
ads
282 ms
bc01.gif
636 ms
bc05.gif
643 ms
bc03.gif
648 ms
osd.js
10 ms
bc06.gif
719 ms
5035099070584927091
25 ms
abg.js
31 ms
m_js_controller.js
45 ms
googlelogo_color_112x36dp.png
64 ms
x_button_blue2.png
22 ms
s
20 ms
MdyApZkAHG2-UELdOwjNjjFZXSz-CGj4o1JtDR7aGgs.js
3 ms
qr.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
[id] attributes on active, focusable elements are not unique
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
Form elements do not have associated labels
Links do not have a discernible name
qr.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
qr.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
WINDOWS-1250
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Qr.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 Qr.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
qr.cz
Open Graph description is not detected on the main page of Qr. 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: