I was treated with
This page (https://mathoverflow.net/) is currently offline. However, because the site uses CloudFlare's Always Online™ technology you can continue to surf a snapshot of the site. We will keep checking in the background and, as soon as the site comes back, you will automatically be served the live version. Always Online™ is powered by CloudFlare | Hide this Alert
when I tried visiting the mathoverflow yesterday. I ignored it since I was able to access the site after couple of reloads.
But today morning, math.SE is acting weird (sometimes it takes couple of reloads to load, sometimes it loads at blazing speed) and was treated with a full page error few seconds back from Cloudfare saying math.SE is down.
Adding: Cloudflare showed some additional info that it could connect to Cloudflare servers in Chennai, and not the main server.
What is happening?