Dana Ross

HTTP/2 is the new generation of the venerable HTTP protocol that powers the web. Among its most powerful features is server push, a way for web servers to send resources to the browser before it even realizes it needs them. This avoids the usual HTTP request/response cycle which happened for every script or stylesheet on a page.
This plugin enables WordPress to send a <code>Link:<...> rel="prefetch"</code> header for every enqueued script and style as WordPress outputs them into the page source. Unfortunately, it can’t help plugins and themes that output their scripts directly into the page itself, but these will continue to work as they always have.
Requires a web server that supports HTTP/2.
<h3>WordPress 4.6 and above</h3>
WordPress 4.6 introduced <a href="https://make.wordpress.org/core/2016/07/06/resource-hints-in-4-6/" rel="nofollow ugc">native support for resource hints</a>. 
By default, this plugin defers to WordPress 4.6 and theme/plugin developers to responsibly prefetch the right assets. Sites running 
on older versions of WordPress will continue to get the previous behavior where all JavaScript and stylesheets had resource hints 
printed for them.
I’ve added a filter To restore the old behavior (hint everything) on WordPress 4.6 and above. To use it, add this line to 
your theme’s functions.php file or a custom plugin:
<pre><code>`add_filter('http2_render_resource_hints', '__return_true');```
</code></pre>

HTTP/2 Server Push

This plugin helped speed up my website by 33%!

Works as advertised

This plugin does just what it says it'll do, HTTP/2 pushes everything!  

That generally will speed things up unless you have a ridiculous number of assets.  

While it now respects resource hinting for themes and plugins that provide that info, I do wish it had a UI for older themes/plugins to control what assets were going to be pushed instead of pushing them all. This plugin is so great without that though it still gets 5 stars

Speeds things up

Works perfectly in conjunction with Cloudflare to deliver excellent performance

Works perfectly

Enables HTTP/2 server push for local JavaScript and CSS resources.

Sandesh

HTTP/2 is the new generation HTTP protocol that provide tremendous powers the web. HTTP/2 is future of web. The most powerful feature of HTTP/2 is server push. Most of popular hosting providers supports to Server Push. Server Push provides significant performance gains if used judiciously.
Check <a href="https://http2.akamai.com/demo" rel="nofollow ugc">HTTP/2 Demo Here</a>.
Server Push allows the server to “bundle” assets that the client didn’t ask for.It send resources to the browser before it even realizes it needs them. This avoids the usual HTTP request/response cycle.
This plugin enabled WordPress to send a <code>Link:<...> rel="prefetch"</code> header to every enqueued script and style page. Is doesn’t support who output their scripts directly into the page itself. This plugin doesn’t affect any visual part of site.
Read more about <a href="https://blog.cloudflare.com/announcing-support-for-http-2-server-push-2/" rel="nofollow ugc">server push here</a>
Note : It requires a web server that supports HTTP/2.
<h3>WordPress 4.6 and above</h3>
WordPress 4.6 introduced support for <a href="https://make.wordpress.org/core/2016/07/06/resource-hints-in-4-6/" rel="nofollow ugc">resource hints</a>. 
This plugin defers to WordPress 4.6 and theme/plugin developers to responsibly prefetch the right assets.
I’ve added a filter To restore the old behavior of resource hints on WordPress 4.6 and above. Use following filter in your functions.php file or in a custom plugin:
<pre><code>`add_filter('sjh_http2_resource_hints', '__return_true');```
</code></pre>

SJ HTTP/2 Server Push Optimization

SJ HTTP/2 Server Push Optimization for JavaScript and CSS resources enqueued in the page.

HTTP/2 Server Push vs SJ HTTP/2 Server Push Optimization