When trying to find a Cloudfront takeover, it is now required that you resolve the domain, find any CNAMEs that it might be pointing to, then resolve those CNAMEs. If those point to Cloudfront and you've got the Cloudfront error, then you've got a takeover. Otherwise, it is invalid. See Can-I-Takeover-XYZ Cloudfront.
When trying to find a Cloudfront takeover, it is now required that you resolve the domain, find any CNAMEs that it might be pointing to, then resolve those CNAMEs. If those point to Cloudfront and you've got the Cloudfront error, then you've got a takeover. Otherwise, it is invalid. See Can-I-Takeover-XYZ Cloudfront.