Some great links this week, including CriticalCSS and How DNS Works. Enjoy!
“Time for some controversy: I don’t think the Customizer is ready for themes—yet.” I can respect that. I still try to use Customizer whenever possible.
CriticalCSS is one major key to better performance on your site. It’s a little complicated and can be a pain to integrate into your workflow (cough, WordPress, Gulp), but totally worth the effort.
I try to use this most of the time on WordPress sites. It can’t hurt to have an inline image link to a lightbox, and these scripts are pretty lightweight.
If you are a WordPress Theme Developer, it’s always good to brush up on the temlate heirarchy.
As a developer, knowing how the internet actually works is crucial. Here is a bit on DNS.
Some better understanding of Promises.
Formats your css and scss for you.