You can import records from BIND files by either uploading the file or by copy and pasting the file in the text box, then clicking the “Import records” button.

You can also attempt to load the records in the text box by doing a zone transfer (AXFR) from a different nameserver. Before you do this, please make sure that you configure the remote nameserver to allow AXFR requests from ns1.geoscaling.com (currently 91.121.64.153).