The acceptable use requirements are (for WHOIS2 gateways):

• The maximum query rate is 100 queries per second with a maximum of 100,000 queries per rolling 24 hours. 
  

For the clients accessing the gateway service the limits are given in the WHOIS acceptable use policy.

Lookup information is aggregated from all gateways and the WHOIS in order to calculate usage for clients.

This policy includes our standard anti-avoidance clause.