Back in WordPress 4.2, they added emoji into WordPress – which I think is one of the loveliest things in the world 🙂
Unfortunately, YSlow does not… those lovely little emoji take up some precious HTTP requests – one of WordPress’ biggest challenges can be that it comes with so much overhead – which can slow down your load time quite a bit!
Thankfully, they’re super easy to remove:
Disable emojicons introduced with WP 4.2
Between turning off the emoji and disabling Jetpack (sorry Jetpack!), my YSlow speed went up by almost 10% to an 81 🙂
To be fair to Jetpack, it is a pretty nifty plugin – I just wasn’t using it for anything on this site :p