DNS Trails

The World's Largest Repository of historical DNS data.

This is in beta, and limited at this time.

This service has been disabled for the time being, sorry!

Contact info [at] DNS trails.com for more information.

I am working on finding a home for the historical forward DNS.

I expect to have the historical reverse DNS at PTRarchive.com in the near future.

Domain Lookups:


Date is optional (use '201301231' format, which would be December 31, 2013)

SUBMIT Searches through our proprietary historical DNS database for DNS data on a domain. How big is the database? Huge.

The data accessible here goes back to mid-2010, but our offline data goes back to mid-2008. It covers all .com, .net, .org, .biz, .info, .mobi, and .name domains.

You can drill down the entire IPv4 address space, seeing what IPs are used in any range (try it!)

Also, there is access to billions of reverse DNS records:

Historical Reverse DNS:


Enter an IP address ( or
a Class C range ( or
a Class B range (

SUBMIT Searches 10,676,045,782 reverse DNS records (with about 12.6B more to be added), from Rapid7's Project Sonar, Internet Census 2012, and private sources.

If you need to contact someone regarding DNS queries from dnstrails.com,
or are looking for bulk DNS queries (e.g. for a search engine),
please E-mail info [at] dns trails.com
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