DNS 'ANY', 'A', 'AAAA', 'TXT', 'MX', and 'CNAME' responses for known forward DNS names

Study Details

Study

Forward DNS (FDNS)

Author

Project Sonar | Rapid7

Contact

Rapid7 Labs

Dataset Details

This dataset contains the responses to DNS requests for all forward DNS names known by Rapid7's Project Sonar. Until early November 2017, all of these were for the 'ANY' record with a fallback A and AAAA request if necessary. After that, the ANY study represents only the responses to ANY requests, and dedicated studies were created for the A, AAAA, CNAME and TXT record lookups with appropriately named files. The file is a GZIP compressed file containing the name, type, value and timestamp of any returned records for a given name in JSON format.

Dataset Schema

Full Dataset Listing

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File Name SHA1-Fingerprint Size Updated At
2026-04-17-1776460047-fdns_cname.json.gz
b4b7422d48ce9063fd7f7841dd2b0565dd3fad47
4.1 GB April 18, 2026
2026-04-17-1776441646-fdns_txt.json.gz
fcc5c8e5927b8f9a66aada691a0e1daee24a2af4
14.4 GB April 18, 2026
2026-04-17-1776440412-fdns_any.json.gz
9c65449cbb2847a32b6b2798476430d125e1da5c
73.9 GB April 18, 2026
2026-04-17-1776437357-fdns_ns.json.gz
ece699baff7226c96cf4c89ebaf70c1625a338d7
16.9 GB April 18, 2026
2026-04-17-1776385979-fdns_mx.json.gz
f8f92c19fbaccadd2e47e86429eedc30e571bbac
7.2 GB April 17, 2026
2026-04-17-1776385442-fdns_aaaa.json.gz
a83eb417e6025790c819b5ee3b37ea9bb6e2468c
11.0 GB April 17, 2026
2026-04-17-1776384923-fdns_caa.json.gz
973f515ec8ae22b5a79cdc00f83ebd10bc0b5a3b
6.0 GB April 17, 2026
2026-04-17-1776384376-fdns_a.json.gz
bf120a034fa94d6930f3abf1aa0b57f36b3d4699
37.5 GB April 17, 2026
2026-04-11-1775869140-fdns_mx.json.gz
e15f636d4f476bb3a72a0b52953bf667ca1f2e7b
7.2 GB April 11, 2026
2026-04-10-1775840955-fdns_ns.json.gz
e7d1e8e8d9d70b8c56d0b3dae6df6741407d1c36
16.7 GB April 11, 2026