Knowledgebase: SmartWhois

When running a batch query, I only get certain percentage of the domains / IP addresses processed. Why some of the records are unavailable?
Many whois databases temporarily or permanently ban an IP address after receiving a certain number of queries over a fixed period of time. To avoid being banned, we suggest that you use a great number of proxy servers for connecting to whois severs. SmartWhois is capable of selecting a random server from the proxy list every time the application connects to a whois server. This may help you avoid being banned. Please refer to the Using SmartWhois From Behind a Proxy / Firewall chapter of SmartWhois manual for more information on configuring proxy servers.
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