4.2 sec in total
314 ms
3.6 sec
292 ms
Visit letenky.cz now to see the best up-to-date Letenky content for Morocco and also check out these interesting facts you probably never knew about letenky.cz
Nejlevnější letenky online. Skvělé ceny, speciální akce na letenky. K rezervaci letenky dárek. Nakupujte levné letenky na letenky.cz a cestujte bez starostí.
Visit letenky.czWe analyzed Letenky.cz page load time and found that the first response time was 314 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
letenky.cz performance score
name
value
score
weighting
Value3.9 s
25/100
10%
Value8.4 s
2/100
25%
Value5.9 s
47/100
10%
Value1,460 ms
14/100
30%
Value0.401
25/100
15%
Value13.3 s
12/100
10%
314 ms
1040 ms
33 ms
33 ms
199 ms
Our browser made a total of 119 requests to load all elements on the main page. We found that 51% of them (61 requests) were addressed to the original Letenky.cz, 20% (24 requests) were made to Brn-ads.sa.cz and 7% (8 requests) were made to Dl.studentagency.cz. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Letenky.cz.
Page size can be reduced by 873.6 kB (53%)
1.7 MB
784.7 kB
In fact, the total size of Letenky.cz main page is 1.7 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. 45% of websites need less resources to load. Javascripts take 906.1 kB which makes up the majority of the site volume.
Potential reduce by 44.5 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 44.5 kB or 77% of the original size.
Potential reduce by 9.2 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. Letenky images are well optimized though.
Potential reduce by 585.0 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 585.0 kB or 65% of the original size.
Potential reduce by 234.9 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. Letenky.cz needs all CSS files to be minified and compressed as it can save up to 234.9 kB or 80% of the original size.
Number of requests can be reduced by 77 (68%)
113
36
The browser has sent 113 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Letenky. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 35 to 1 for CSS and as a result speed up the page load time.
letenky.cz
314 ms
www.letenky.cz
1040 ms
analytics.js
33 ms
css
33 ms
default.css_2085649634.css
199 ms
sp_actions.css_2085649634.css
206 ms
jquery.ui.all.css
207 ms
jqtransform.css
208 ms
jquery-ui-1.10.3.custom.css
308 ms
jquery.min.js
79 ms
jquery-ui.min.js
60 ms
hp.css_2085649634.css
208 ms
jquery.jqtransform.js
305 ms
jquery.controls.js
322 ms
components.js
977 ms
main-scripts.js
310 ms
cookie-banner.js
939 ms
es5-shim.min.js
319 ms
booking_sp_widget.js
682 ms
connect.js
195 ms
init.js
673 ms
collect
13 ms
collect
56 ms
slides-1.1.8.js
584 ms
init.js
571 ms
conversion.js
15 ms
retargeting.js
236 ms
default_pc.css
215 ms
default_pc_1300.css
211 ms
default_sm.css
224 ms
default_m.css
227 ms
sp_actions_pc.css
224 ms
sp_actions_sm.css
224 ms
sp_actions_m.css
307 ms
jquery.ui.base.css
309 ms
jquery.ui.theme.css
322 ms
jquery.ui.core.css
114 ms
jquery.ui.resizable.css
116 ms
jquery.ui.selectable.css
117 ms
jquery.ui.accordion.css
113 ms
jquery.ui.autocomplete.css
115 ms
jquery.ui.button.css
116 ms
jquery.ui.dialog.css
215 ms
jquery.ui.slider.css
216 ms
jquery.ui.tabs.css
221 ms
jquery.ui.datepicker.css
220 ms
jquery.ui.progressbar.css
220 ms
hp_all.css
107 ms
hp_pc.css
110 ms
hp_sm.css
112 ms
hp_m.css
105 ms
collect
23 ms
bg.jpg
410 ms
logo.png
118 ms
icon_phone.png
117 ms
bg_search_input.png
117 ms
bg_menu.png
116 ms
bg_li.png
116 ms
gift.jpg
219 ms
foot-logos.jpg
420 ms
gk5FxslNkTTHtojXrkp-xL_Y9QCc4uCqq1xfpYavBoU.ttf
34 ms
stand-alone-app
408 ms
bg_search_button.png
199 ms
afr.php
369 ms
afr.php
349 ms
afr.php
355 ms
afr.php
344 ms
bg_tag_l.png
183 ms
bg_tag_r.png
187 ms
bg_3_banner.jpg
288 ms
tb_shadow.jpg
289 ms
bg_button_news.png
289 ms
icon_fb.png
289 ms
icon_tw.png
388 ms
icon_gp.png
389 ms
loader.js
777 ms
95 ms
retargeting
121 ms
jquery.ui.datepicker-cs.js
111 ms
data.json
137 ms
data.json
216 ms
tab_inactive_lf.png
329 ms
tab_inactive_r.png
332 ms
tab_inactive_l.png
413 ms
tab_active_l.png
433 ms
tab_active_r.png
433 ms
preloader.GIF
548 ms
afr.php
303 ms
afr.php
295 ms
afr.php
416 ms
afr.php
418 ms
data.json
194 ms
51 ms
ui-bg_flat_75_ffffff_40x100.png
231 ms
calendar.png
227 ms
7865718c11584f7aff339e62c7e4ad08.jpg
214 ms
lg.php
153 ms
3612d22b4ea564155ed334f5db1d1b5a.jpg
218 ms
lg.php
149 ms
7c76e949df9811c305e58485062e8545.jpg
329 ms
lg.php
263 ms
e7b2465a2528f8bce048126df1b72493.jpg
442 ms
lg.php
267 ms
28054a493b9adec127865d92de738f85.png
296 ms
lg.php
347 ms
712e5e320ee787bc9c2a067df1eab335.jpg
555 ms
lg.php
416 ms
366 ms
9a10b71233baff3799e4685a61b77f57.jpg
422 ms
lg.php
335 ms
62ca4f2aaf9da677916a80f64fc768c2.jpg
633 ms
lg.php
433 ms
css
55 ms
base.css
86 ms
app.min.js
430 ms
smartchat-2.1.1.min.css
220 ms
smartchat-2.1.1.min.js
341 ms
media-queries.css
96 ms
cs.json
86 ms
letenky.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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
letenky.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
letenky.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
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Letenky.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Letenky.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.
letenky.cz
Open Graph description is not detected on the main page of Letenky. 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: