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 neccessary. 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
2025-07-11-1752192355-fdns_aaaa.json.gz
7ac07fbee49c0d5b64418b84090c2f6bbeecf567
6.4 GB July 12, 2025
2025-07-05-1751743332-fdns_a.json.gz
c552adbc3f28846849240e67ae25b05801cce78d
20.6 GB July 7, 2025
2025-07-05-1751694785-fdns_cname.json.gz
08cb63d819a1a6b526af83d500008bb0f0a506d3
1.9 GB July 6, 2025
2025-07-05-1751687302-fdns_ns.json.gz
b15d52c3ccf0e61b6f96a2d882b713606da050d9
7.8 GB July 6, 2025
2025-07-05-1751681246-fdns_mx.json.gz
bdd73f5684f24d3a1fec52f1d567d7049c0b2f0e
4.0 GB July 6, 2025
2025-07-04-1751589161-fdns_any.json.gz
63aff09a45b32c0024972e0b029d2a8e66c87e51
59.0 GB July 5, 2025
2025-07-04-1751588635-fdns_txt.json.gz
6f140d813ef93c475594611bf0d3d9a3412ed0a3
7.0 GB July 5, 2025
2025-07-04-1751588105-fdns_aaaa.json.gz
5018cf9b5a42983fe07ef73461962285e36f1f65
6.3 GB July 5, 2025
2025-07-04-1751587555-fdns_caa.json.gz
65ecb2b9150ff11f8c0e9dc850d45087ebc11dc1
2.4 GB July 5, 2025
2025-07-01-1751330003-fdns_txt_mx_mta-sts.json.gz
efd5f56cf96f4a59469fe430fe3aac8c66d3b4e0
18.9 MB July 1, 2025