Not sure where to post.
I have a bunch of domains for which I use CloudFlare. As of just now, for three of them, the wires seem to be crossed.
I want to retire domainA, redirecting requests for domainA to domainB. I deleted domainA from CloudFlare and reverted to the DNSs of the registrar, having the registrar redirect requests for domainA to domainB.
The result was not at all as expected, so I decided to arrange the redirect myself via a PHP redirect.
I reverted the DNSs for domainA to CloudFlare and reinstated domainA on CloudFlare. Then I put a simple PHP redirect in the root of site of domainA to point to domainB.
But, now, requests for domainB returns a ‘too many redirects’, and requests for a domainC, hosted on the same server, actually shows the content of domainB (while requests for domainA show a message from the registrar, but I can assume that’s because their most recent change hasn’t propagated yet).
I’m ok with assuming that the too many redirects for domainB are the result of turning off, then on, flexible https, requiring me just to wait a bit for this to start working again. Though even that doesn’t seem right to me.
But the sudden mixup of requests for domainC pointing to domainB makes no sense.
And, I have no idea how to troubleshoot this.
How to proceed?