3.3 sec in total
423 ms
2.5 sec
328 ms
Click here to check amazing Cz Lt content for Czech Republic. Otherwise, check out these important facts you probably never knew about czlt.cz
Czech language school offers top quality online Czech courses for foreigners. We teach only and entirely Czech language for foreigners! Enrol today!
Visit czlt.czWe analyzed Czlt.cz page load time and found that the first response time was 423 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
czlt.cz performance score
name
value
score
weighting
Value2.7 s
60/100
10%
Value5.4 s
21/100
25%
Value11.6 s
5/100
10%
Value640 ms
46/100
30%
Value0.648
9/100
15%
Value12.2 s
15/100
10%
423 ms
106 ms
210 ms
213 ms
217 ms
Our browser made a total of 126 requests to load all elements on the main page. We found that 57% of them (72 requests) were addressed to the original Czlt.cz, 10% (13 requests) were made to Google.com and 9% (11 requests) were made to Maps.googleapis.com. The less responsive or slowest element that took the longest time to load (874 ms) belongs to the original domain Czlt.cz.
Page size can be reduced by 1.3 MB (48%)
2.8 MB
1.4 MB
In fact, the total size of Czlt.cz main page is 2.8 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. 65% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 50.3 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 50.3 kB or 79% of the original size.
Potential reduce by 32.5 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. Cz Lt images are well optimized though.
Potential reduce by 974.7 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 974.7 kB or 68% of the original size.
Potential reduce by 273.4 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. Czlt.cz needs all CSS files to be minified and compressed as it can save up to 273.4 kB or 83% of the original size.
Number of requests can be reduced by 59 (51%)
115
56
The browser has sent 115 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cz Lt. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.
czlt.cz
423 ms
system.base.css
106 ms
date.css
210 ms
datepicker.1.7.css
213 ms
date_repeat_field.css
217 ms
field.css
225 ms
node.css
227 ms
office_hours.css
249 ms
views.css
312 ms
ckeditor.css
318 ms
ctools.css
323 ms
lightbox.css
336 ms
locale.css
338 ms
flexslider_img.css
373 ms
field_slideshow.css
415 ms
flexslider.css
422 ms
bootstrap.css
9 ms
overrides.min.css
430 ms
style.css
449 ms
jquery.min.js
602 ms
jquery.once.js
495 ms
drupal.js
520 ms
bootstrap.js
17 ms
button_field.ajax.js
526 ms
lightbox.js
539 ms
jquery.flexslider-min.js
561 ms
field_slideshow.js
618 ms
jquery.cycle.all.js
627 ms
jquery.imagesloaded.min.js
630 ms
gat.js
645 ms
googleanalytics.js
672 ms
google_analytics_et.js
713 ms
custom.js
741 ms
conversion.js
13 ms
click_heatmap.js
729 ms
clickheat.js
735 ms
flexslider.load.js
766 ms
bootstrap.js
817 ms
analytics.js
3 ms
collect
12 ms
hotjar-276352.js
165 ms
logo.png
131 ms
cs.png
133 ms
en.png
129 ms
czlt_standardni_kurzy_cestiny.jpg
454 ms
7-students.png
457 ms
5-minutes_0.png
522 ms
banner-google-reference-en.jpg
453 ms
icon_our_courses.png
230 ms
icon_how_to_enroll.png
245 ms
icon_test_online.png
343 ms
banner_tutor_3.jpg
611 ms
veronika_jedlickova.jpg
455 ms
miroslav_kasparek.jpg
521 ms
eva_vokata.jpg
526 ms
reference_jysk.jpg
554 ms
reference_ikea.jpg
560 ms
reference_dhl.jpg
632 ms
reference_commerzbank.jpg
625 ms
reference_rwe.jpg
631 ms
reference_aria.jpg
647 ms
reference_kpmg.jpg
671 ms
reference_vodafone.jpg
735 ms
card-pay.jpg
735 ms
fb-banner-hp-v03.png
735 ms
logo_footer.png
740 ms
icon_facebook.png
753 ms
icon_gplus.png
808 ms
icon_youtube.png
858 ms
gtm.js
108 ms
embed
347 ms
lang-switch-eng.png
860 ms
lang-switch-cze.png
841 ms
icon_phone.png
840 ms
icon_star_new.png
860 ms
icon_plus.png
874 ms
88 ms
fbevents.js
69 ms
texgyreadventor-regular-webfont.woff
847 ms
texgyreadventor-bold-webfont.woff
866 ms
glyphicons-halflings-regular.woff
18 ms
texgyreadventor-italic-webfont.woff
866 ms
texgyreadventor-bolditalic-webfont.woff
872 ms
1508971599353731
176 ms
25 ms
modules-f524bccd859bfc7e394e1123f7f90405.js
41 ms
rcj-99d43ead6bdf30da8ed5ffcb4f17100c.html
38 ms
visit-data
212 ms
17 ms
js
37 ms
init_embed.js
67 ms
visit-data
217 ms
common.js
32 ms
map.js
31 ms
google4.png
55 ms
overlay.js
9 ms
util.js
8 ms
onion.js
51 ms
search_impl.js
7 ms
openhand_8_8.cur
28 ms
ViewportInfoService.GetViewportInfo
63 ms
ViewportInfoService.GetViewportInfo
57 ms
kh
55 ms
transparent.png
15 ms
39 ms
controls.js
5 ms
css
93 ms
entity11.png
52 ms
mapcnt6.png
57 ms
tmapctrl.png
41 ms
vt
235 ms
vt
216 ms
vt
210 ms
vt
234 ms
vt
219 ms
vt
243 ms
vt
285 ms
vt
287 ms
vt
260 ms
vt
274 ms
vt
331 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
25 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
29 ms
Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf
34 ms
d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf
35 ms
AuthenticationService.Authenticate
14 ms
czlt.cz accessibility score
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
czlt.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
Browser errors were logged to the console
czlt.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
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Czlt.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Czlt.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.
czlt.cz
Open Graph description is not detected on the main page of Cz Lt. 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: