Eso.org Site Title

ESO

Eso.org Meta Description

ESO, European Organisation for Astronomical Research in the Southern Hemisphere

Eso.org Test Results

eso.org 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 <button type="button" class="slide-prev"></button> and 1 others are close to other tap targets .
...

eso.org Mobile Speed: 62/100

Quick overview:
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 417.3KiB (28% reduction).
Compressing https://cdn.eso.org/images/wallpaper1/eso1322a.jpg could save 88.2KiB (41% 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://www.eso.org/public/archives/static/pano/latest/pano_PV_960x.jpg (expiration not specified)
...
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.eso.org/public/archives/app/css/main.43b193fa1149.css

Similar tests
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Last Tested: