I am running multiple websites/web services through Playit. I recently bought a new domain and linked it to Playit via the NS records, so Playit’s nameservers control the records. I tried switching to Cloudflare to see if that would work better for my websites while adding NS records to subdomains for PlayIt to use, but I decided that PlayIt was good enough, so I switched the nameservers back to PlayIt. After that, the DNS for my HTTPS tunnels and only the HTTPS tunnels have been dropping. If I run an nslookup on the domains I am using every few seconds, it will return NXDOMAIN for half, if not all, of them.
Did you change NS records or the domain’s name server in whois? After making big DNS changes it can take 48 hours for them to apply globally.
I think I did but my domain is working now so it should be good now.