One proposed mechanism for doing server push is for the application server to send Link: rel=preload headers: https://github.com/icing/mod_h2/issues/38 https://

One proposed mechanism for doing server push is for the application server to send Link: rel=preload headers: https://github.com/icing/mod_h2/issues/38 https://github.com/icing/mod_h2/issues/38 Once you've got code running on the client then there's significantly less need for server push, as you can initiate requests in a bunch of ways, XHRs or <img> tags etc. Server push's big win is in getting necessary resources down to the client on the initial page load without waiting for numerous round. As such, you'll see the biggest gains on high latency connections, e.g. mobile.