My suggestion is wait. I wouldn't even consider flipping my sites over to another DNS unless the outage begins lasting over four hours or so. A lot of top sites

My suggestion is wait. I wouldn't even consider flipping my sites over to another DNS unless the outage begins lasting over four hours or so. A lot of top sites use Cloudflare and this sort of outage is extremely rare for them (I can't remember a time when Cloudflare's own site and dashboard were taken offline). Then again, it depends on the priority of your site. But there are tons of top sites on Cloudflare and I bet a lot of those places don't have plans for emergency switching over to another DNS provider / CDN on short notice as it's often a fairly disruptive change, especially now that more frontend logic for a site is implemented alongside the CDN/LB.