Rizful.com and Rizful NWC is experiencing intermittent downtime over the last hour or so. This is not related to our systems, but seems to be a (very rare) outage from our DNS provider -- you can see the status here: https://dnsimple.statuspage.io/

Messing with DNS is not fun or recommended, and actually switching DNS often takes a few hours or days -- so we're going to "do nothing". 

Apologies.