I'd like to thank you for the time and effort it must take to research, write and edit these articles. The tone you strike with these articles is a delight to read, and I find myself gobbling these things up even for topics about which I (falsely, it usually turns out) consider myself fairly knowledgeable.
Thanks for the link! Are there other good crash courses on various protocols and standards? Directly jumping into the dry official specs is just too overwhelmingly sometimes.
For TLS, I recommend The Illustrated TLS 1.3 Connection (Every byte explained and reproduced): https://tls13.xargs.org/