Rule number one for high traffic sites with a lot of pageloads coming from search engines: Aggressively cache content shown to unauthenticated users. Since they

Rule number one for high traffic sites with a lot of pageloads coming from search engines: Aggressively cache content shown to unauthenticated users. Since they don't really interact with the site, they probably won't even notice if it's a bit stale. They used to have a really good blog post about their caching infra which for some reason was deleted. Archive link: https://web.archive.org/web/20210205121832/https://redditblog.com/2017/1/17/caching-at-reddit/ https://web.archive.org/web/20210205121832/https://redditblo...