Short answer

Allow a few hours after registering, transferring or changing nameservers, then check the domain's DNS. If it still does not point at your hosting, set the records shown in the Website Panel.

Checks

  • Transfer: a transfer in only completes once the current registrar releases it. For .uk domains that means changing the IPS tag.
  • Nameservers: the domain uses the nameservers you expect.
  • Records: the A record (and www) point at your hosting. See checking DNS properly.