Google Bot is now attempting to use HTTP/2 to crawl the web
Ever since mainstream browsers started supporting the next major revision of HTTP, HTTP/2 or h2 for short, web professionals asked us whether Googlebot can crawl over the upgraded, more modern version of the protocol.
Today we're announcing that starting mid November 2020, Googlebot will support crawling over HTTP/2 for select sites.
Article
https://webmasters.googleblog.com/2020/09/googlebot-will-soon-speak-http2.html
* Intro 0:00
* What is a Crawler 1:06
* Current Crawler uses h1 2:00
* Crawler now uses h2 4:40
* Less connections, slightly high CPU usage 6:30
* Opting out of h2 crawling 9:00
* FAQ 11:40
Http/2 playlist 0;50 https://www.youtube.com/playlist?list=PLQnljOFTspQWbBegaU790WhH7gNKcMAl-
http/2 not cheap 7;00 https://www.youtube.com/watch?v=GriONb4EfPY
lucid chart 9;50 https://www.youtube.com/watch?v=gejfT1h6LBo
h2c smuggling 18:30 https://www.youtube.com/watch?v=B2VEQ3jFq6Q