Welcome to PTRarchive.com

This site is responsible for the safekeeping of historical reverse DNS records. It has over 43 billion records retrieved from 2008 to the present.

We provide free access to most of this data, while planning to offer more for purchase. To be clear, you can download much of the raw data elsewhere for free; our charge is primarily for providing manageable and easy-to-access data.

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(e.g. 'nasa')
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