5.1 sec in total
870 ms
4.1 sec
180 ms
Welcome to rezervace.letuska.cz homepage info - get ready to check Rezervace Letuska best content for Czech Republic right away, or after learning these important things about rezervace.letuska.cz
Visit rezervace.letuska.czWe analyzed Rezervace.letuska.cz page load time and found that the first response time was 870 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
rezervace.letuska.cz performance score
name
value
score
weighting
Value6.5 s
2/100
10%
Value6.6 s
8/100
25%
Value9.7 s
10/100
10%
Value600 ms
49/100
30%
Value0.081
94/100
15%
Value10.7 s
22/100
10%
870 ms
466 ms
338 ms
274 ms
486 ms
Our browser made a total of 66 requests to load all elements on the main page. We found that 62% of them (41 requests) were addressed to the original Rezervace.letuska.cz, 12% (8 requests) were made to Letuska.cz and 6% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Letuska.cz.
Page size can be reduced by 326.5 kB (67%)
488.4 kB
161.9 kB
In fact, the total size of Rezervace.letuska.cz main page is 488.4 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. 40% of websites need less resources to load. Javascripts take 354.6 kB which makes up the majority of the site volume.
Potential reduce by 39.6 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. 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 39.6 kB or 80% of the original size.
Potential reduce by 2.8 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. Obviously, Rezervace Letuska needs image optimization as it can save up to 2.8 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 221.2 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 221.2 kB or 62% of the original size.
Potential reduce by 63.0 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. Rezervace.letuska.cz needs all CSS files to be minified and compressed as it can save up to 63.0 kB or 86% of the original size.
Number of requests can be reduced by 42 (75%)
56
14
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rezervace Letuska. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
rezervace.letuska.cz
870 ms
index.php
466 ms
soyka-api.js
338 ms
lytebox.css
274 ms
global.css
486 ms
trustyou.css
368 ms
responsive.css
377 ms
ui_all.css
253 ms
popup_lyte.css
270 ms
_lytebox.js
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index.css
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_jquery.js
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_functions.js
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732 ms
_createCalendars_v2.js
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aag_forms.js
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index.js
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_flight.js
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835 ms
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ui.datepicker.css
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symphony.min.css
802 ms
symphony.min.js
1167 ms
_customAnalytics.js
869 ms
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conversion.js
21 ms
retargeting.js
227 ms
box.gif
184 ms
min.gif
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roboto-regular.woff
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analytics.js
23 ms
roboto-medium.woff
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select.png
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linkid.js
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collect
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ico_arr_right.png
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ajaxLoading_small.gif
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roboto-bold.woff
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myx.js
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gtm.js
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retargeting
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ga-audiences
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conversion_async.js
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print_pure.css
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ico_scroll_to_top.png
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logo.png
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ajaxSpecialOfferList.php
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1x1.php
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iconographer-webfont.woff
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iconographer-webfont.woff
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novecentowide-bold-webfont.woff
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logo.png
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1x1.php
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rezervace.letuska.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
Form elements do not have associated labels
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
rezervace.letuska.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
Missing source maps for large first-party JavaScript
rezervace.letuska.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
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rezervace.letuska.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 Rezervace.letuska.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.
rezervace.letuska.cz
Open Graph description is not detected on the main page of Rezervace Letuska. 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: