Csa.cz Site Title

Letenky ČSA – online rezervace – České aerolinie

Csa.cz Test Results

Csa.cz Mobile Usability: 100/100

Csa.cz Mobile Speed: 50/100

Quick overview:
Avoid landing page redirects
Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://csa.cz/
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 11 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
http://m.csa.cz/scr/js_cookies.js?ver=6322
...
Optimize CSS Delivery of the following:
http://m.csa.cz/css/web_cookies_information_top_1.css?ver=6322
...
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 190KiB (73% reduction).
Compressing http://m.csa.cz/scr/js_jquery_1_7.js?ver=6322 could save 59.9KiB (64% reduction).
...
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
http://assets.adobedtm.com/bd9b7570ee863611aa0d4c6f28420b26a36ae46a/s-code-contents-e234d9096f4bb3d6a89833075f37b82d397a8bad.js (expiration not specified)
...
Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 49KiB (49% reduction).
Minifying http://m.csa.cz/scr/js_jquery_scrollpanel_csa.js?ver=6322 could save 22.1KiB (48% reduction).
...
Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 7.8KiB (20% reduction).
Minifying http://m.csa.cz/css/portal_intropage_1.css?ver=6322 could save 3.1KiB (34% reduction).
...
Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 741B (13% reduction).
Minifying http://m.csa.cz/cs/worldwide/portal_intropage.htm could save 741B (13% reduction).

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