Hmmm I've had websites not accept mine but I'm still not sure why. Maybe it's the .dev . Cheapo regex
I wouldn't be surprised. They probably have like .com, .net, .org, .gov, .edu and maybe some ccTLDs hardcoded.
I wouldn't be surprised. They probably have like .com, .net, .org, .gov, .edu and maybe some ccTLDs hardcoded.