<head>: the single biggest render-blocker
“The head tag is where machine readable information lives. Metadata.
There are a number of elements permitted under the head element and the one lesson I wish to impart is that ordering and structuring your head element will potentially give you performance gains.” – morganwebdev.com/blog/head/

from new @morganm series “Every HTML Element” inspired by @patrickweaver post in previous boost: morganwebdev.com/tags/every-ht