As always I&#x27;m skeptical of reliable device identification. Claiming to have it almost sounds like claiming to own a hen that lays golden eggs. Their blurb about it doesn&#x27;t do much to convince me so far:<p><pre><code>    Through our company, we have some customer who want us to integrate
    into HAProxy the ability to detect device type and characteristics and
    report it to the backend server. We got a couple of contributions from
    2 companies experts in this domain: 51 degrees and deviceatlas. You
    can now load those libraries in HAProxy in order to fully qualify a
    client capabilities and set up some headers your application server
    can rely on to adapt content delivered to the client or let the
    varnish cache server use it to cache multiple flavor of the same
    object based on client capabilities.

    More on this blog later on how to integrate each product.
</code></pre>
But it would be a nice surprise if it performed well.