querying TLD nameservers - limitations

blrmaani blrmaani at gmail.com
Sun Mar 24 23:55:13 UTC 2013

I am developing a monitoring script for internal use and this requires extensive querying of TLD nameservers (a .. m).tld servers.

1. Are there any rate limitations imposed by TLD servers i.e these servers allows only certain number of DNS queries per IP per second?

2. Are there other limitations I should be aware of while developing my script?

Any experience among this group members in developing these kind of scripts using Net::DNS::Resolver perl module?


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