Cas.cz Site Title
Akademie věd České republiky - Akademie věd České republiky
Cas.cz Meta Description
Akademie věd České republiky, veřejná neuniverzitní výzkumná instituce.
Cas.cz Test Results
cas.cz Mobile Usability: 99/100
Quick overview:
Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
<a href="mailto:info@cas.cz">info@cas.cz</a> and 1 others are close to other tap targets.
...
cas.cz Mobile Speed: 60/100
Quick overview:
Reduce server response time
In our test, your server responded in 2.2 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
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://www.avcr.cz/opencms/export/sites/avcr.cz/.content/galerie-obrazku/aktuality/2017/Saini.jpg_1799723761.jpg (expiration not specified)
...
Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://cas.cz/
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Optimize CSS Delivery of the following:
http://www.avcr.cz/opencms/export/system/modules/cz.nelasoft.opencms.avcr/resources/css/main.css
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 44.6KiB (25% reduction).
Compressing http://www.avcr.cz/opencms/export/sites/avcr.cz/.content/galerie-obrazku/aktuality/2017/Zofin_AVCR-6_s900_v350.jpg_866903476.jpg could save 29.2KiB (36% reduction).
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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 4KiB (25% reduction).
Minifying http://www.avcr.cz/opencms/export/system/modules/cz.nelasoft.opencms.avcr/resources/css/main.css could save 3KiB (28% reduction) after compression.
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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 2.6KiB (29% reduction).
Minifying http://www.avcr.cz/cs/ could save 2.6KiB (29% reduction) after compression.
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 431B (29% reduction).
Minifying http://www.avcr.cz/system/modules/cz.nelasoft.opencms.avcr/resources/js/dropdown.js could save 431B (29% reduction) after compression.
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 368B (43% reduction).
Compressing http://www.youtube.com/player_api could save 368B (43% reduction).
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