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
2026-02-13-1770942242-fdns_aaaa.json.gz
4e2ddad7484dff4aa4d7e726eea1bc818582f70d
10.8 GB Feb. 13, 2026
2026-02-13-1770941701-fdns_a.json.gz
8692b3261eb3d5985ed2b4983af47aaa79de0917
37.1 GB Feb. 13, 2026
2026-02-13-1770941156-fdns_ns.json.gz
29a0b02add03e12c2d5ff065bbc1aa8536f88d84
16.8 GB Feb. 13, 2026
2026-02-07-1770437079-fdns_caa.json.gz
b3861d59421a982bef7823b53db4c3da66661d5c
6.6 GB Feb. 7, 2026
2026-02-06-1770401034-fdns_txt.json.gz
42d96d53ccb3e52403fd94ed1266566c7415d565
14.2 GB Feb. 7, 2026
2026-02-06-1770395545-fdns_mx.json.gz
a76c77e1796c43a602a7fba4fd13455617d15aa7
6.8 GB Feb. 7, 2026
2026-02-06-1770389851-fdns_a.json.gz
327bc1902aeb994706e15b493fd911040a96b4bd
37.8 GB Feb. 7, 2026
2026-02-06-1770337428-fdns_any.json.gz
f7ac78e0b474b953b0b814e3fbc953fd72de84f7
82.1 GB Feb. 7, 2026
2026-02-06-1770336856-fdns_ns.json.gz
c6782553bab662a7f940d6653516f13e28a4d3c2
17.0 GB Feb. 6, 2026
2026-02-06-1770336374-fdns_cname.json.gz
e80f73e9e4cfedbe48b55cd5262477e5dac7bce6
3.8 GB Feb. 6, 2026