I upgraded my server to Ubuntu 16.04, converted my websites over to HTTPs, and locked them in using HSTS. It would be a shame to stop here without making one last change: upgrading to the HTTP/2 protocol.
The web has been spinning along on HTTP 1.1 since 1997. It’s been a good and faithful servant. However, the protocol is also showing its age, leading to gimmicks and workarounds just to more readily process today’s web pages.