Received: 12 December 2017
I totally understand with the ICANN whois we provide it is absolutely chaos the amount of harvesting going on.
My I suggest, you return a limited amount of data on port 43. Domain name/ date of registration / expiry etc.
And a URL link to the full data.
Access to ths may then be controlled by the use of a Graphic capture program.
Robert Fox, BB Online UK Ltd