If you are using Accelerated Domains™, and see a mobile version of your site while browsing using a larger screen (or the other way around), you are probably using some sort of device sniffing in PHP, either in a custom function or something like wp_is_mobile(). This is unsafe for most caching setups, including the default Servebolt cache and Accelerated Domains.
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Servebolt has launched Accelerated Domains!
Accelerated Domains is a service that greatly improves and optimizes your site on these four areas: Performance, Scalability, Security and the Carbon footprint of your website.