Arts.cern Site Title

Arts · at · CERN|Creativity across Cultures

Arts.cern Meta Description

Arts at CERN is the leading art and science programme fostering the dialogue between artists and physicists

Arts.cern Test Results

arts.cern Mobile Usability: 100/100


arts.cern Mobile Speed: 49/100

Quick overview:
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 737.9KiB (97% reduction).
Compressing and resizing http://arts.cern/sites/arts.web.cern.ch/files/fb%20web%202.png could save 352KiB (99% reduction).
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking script resources and 6 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.
Remove render-blocking JavaScript:
http://arts.cern/sites/arts.web.cern.ch/files/js/js_tm1gahPj5RurExr4Zj4GdGvvL7W4-u6_XRVeEsXyp3Q.js
...
Optimize CSS Delivery of the following:
http://arts.cern/sites/arts.web.cern.ch/files/css/css_ywqYrtSodM0qVMzAkOSnqZ_iBnAVpkSeD_yPtUN9tBk.css
...
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://arts.cern/sites/arts.web.cern.ch/files/css/css_FzbXYxgEwBwlcYPy6ja0jIRgcNLbTDqxc4HTFyQNFU8.css (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 7.1KiB (20% reduction).
Minifying http://arts.cern/sites/arts.web.cern.ch/files/js/js_tm1gahPj5RurExr4Zj4GdGvvL7W4-u6_XRVeEsXyp3Q.js could save 5.3KiB (16% 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 2KiB (82% reduction).
Compressing http://framework.web.cern.ch/framework/2.0/fonts/PTSansWeb/PTSansWeb.css could save 2KiB (82% reduction).

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