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
2026-06-12-1781285604-fdns_cname.json.gz
sha1:bc67e418e7156028c38e82df9f8e5cc90ac45b76
4.3 GB June 13, 2026
2026-06-12-1781279763-fdns_a.json.gz
sha1:8648be4325b0d4aca5bfc1940ac09e20ba289ae6
37.6 GB June 13, 2026
2026-06-12-1781279069-fdns_caa.json.gz
sha1:72f9ee78bebe3984d84fe0aada749b7768089e84
5.7 GB June 13, 2026
2026-06-12-1781277383-fdns_any.json.gz
sha1:52e5db22f06afbf3867afa0e0105b49cd8648462
76.1 GB June 13, 2026
2026-06-12-1781224331-fdns_ns.json.gz
sha1:50e81f46489010737a90e3db2be9a043961ab137
16.6 GB June 12, 2026
2026-06-12-1781223798-fdns_aaaa.json.gz
sha1:48a87f9990a2acb6a00fa182c42e32c57e87301a
11.6 GB June 12, 2026
2026-06-12-1781223250-fdns_mx.json.gz
sha1:46847c9857b01b4bce103010cfa2eca9ff950fa2
7.5 GB June 12, 2026
2026-06-12-1781222735-fdns_txt.json.gz
sha1:c540e21f4116f064b5aca52a9379ec7b610d2f10
13.9 GB June 12, 2026
2026-06-05-1780682427-fdns_caa.json.gz
sha1:3fb5543c2706a8f5aa893a87cd1572680dc4a5ad
5.6 GB June 6, 2026
2026-06-05-1780677622-fdns_any.json.gz
sha1:e9b378cb5b99e1f97c0e6a0b933007bb29af55d8
76.2 GB June 6, 2026