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
2026-04-10-1775781149-fdns_cname.json.gz
b081e2eed188f544b93699ea39dad6c00a424e79
4.0 GB April 10, 2026
2026-04-10-1775780595-fdns_txt.json.gz
9ce27fc3f7b73f36d1a5ff2fd04cd6b3c1beff82
14.4 GB April 10, 2026
2026-04-10-1775780061-fdns_any.json.gz
b1ebd8b53e62889e1fe733dfc307ee3e48078d66
75.5 GB April 10, 2026
2026-04-10-1775779531-fdns_aaaa.json.gz
2a7b88440ec6601d5421f22f864ef25d00d89aab
10.9 GB April 10, 2026
2026-04-03-1775250549-fdns_any.json.gz
cfe688be22c8f2ccea2b08872d9836c63e42ed11
76.1 GB April 4, 2026
2026-04-03-1775240870-fdns_caa.json.gz
12feac0f387d4be9808fcb0d4cc9dbb13db3045e
5.9 GB April 4, 2026
2026-04-03-1775237155-fdns_mx.json.gz
a8e295d53a681a46c632f8385b4d75c50b652f8f
7.1 GB April 4, 2026
2026-04-03-1775235440-fdns_cname.json.gz
75abd25f5b9706de9ec0d29b9b5d2b8bb4b8b3f2
4.0 GB April 4, 2026
2026-04-03-1775176307-fdns_aaaa.json.gz
f73ce7d1a3200c18717bf5832ff8cae242dbc0c8
10.8 GB April 3, 2026
2026-04-03-1775175790-fdns_a.json.gz
0f3776d71329989733adab0a3f77cb7463fe0b2f
37.0 GB April 3, 2026