Performance tab

The Performance tab contains configuration options that optimise and control delivery speed using Myra features.

The following settings are available:

Name	Definition
Image optimization	Enables or disables lossless image enhancement of JPG and PNG files for faster transmission.NoteThis setting has no side-effects and only has positive effects, particularly for calls using mobile data networks. The user does not see any difference between compressed and uncompressed images.Default value: On
Javascript optimisation	Enables or disables combining of the JavaScript code of the website and subsequent insertion at the end of the HTML code for faster website rendering.NoteEnabling this setting can lead to undesirable effects, such as view errors or faulty functions. Check whether enabling this setting is possible with your site. You can test this, for example, with an extra subdomain or using the /etc/hosts entry.Default value: Off
Cache	Enables or disables the cache functionality.NoteFor complete activation, you must specify in the Cache Settings view which objects should be cached. (see Section Cache settings)Default value: Off
Enforce cache TTL	Enables or disables overwriting of the cache header of your infrastructure with the values entered in the cache settings.NoteIf the value is set to Disabled, the values from the origin cache header are used.NoteThe cache headers private, no-store, no-cache, and max-age=0 are still respected despite forced cache TTL. The elements carrying one of these header values are never cached.Default value: Off
Ignore no-cache header	Enables or disables whether no-cache headers such as private, no-store, or no-cache are ignored. Default value: Off
Revalidate expired cache objects	Enables or disables whether Myra requests expired cache entries from your infrastructure with the HTTP headers If-Modified-Since and If-None-Match. Default value: Off