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
2026-05-17-1779020500-fdns_caa.json.gz
sha1:693be27e6a298eaf15cdb21651b649dc489a4e25
6.1 GB May 18, 2026
2026-05-15-1778880692-fdns_txt.json.gz
sha1:d9bc63dd723115dbcfcf00fde16a61ed592bfc95
14.8 GB May 16, 2026
2026-05-15-1778873009-fdns_mx.json.gz
sha1:e93c52e5f4e190fc09ca0eb4553588c0e0c9a560
7.3 GB May 16, 2026
2026-05-15-1778860334-fdns_cname.json.gz
sha1:57c49572ff12333a5c850d6c9ccaeae8d95b07cf
4.3 GB May 16, 2026
2026-05-15-1778809876-fdns_ns.json.gz
sha1:1e985deca074d69a6f381de5f2e87c79244b395c
17.1 GB May 15, 2026
2026-05-15-1778804589-fdns_any.json.gz
sha1:685d10db78b7acc77cd710670b7e94fd0ef00c51
75.0 GB May 16, 2026
2026-05-15-1778804059-fdns_aaaa.json.gz
sha1:da29b479ce52c6dae36ed2561fcb98c4a3d19222
11.3 GB May 15, 2026
2026-05-15-1778803492-fdns_a.json.gz
sha1:033a02dbda0c2056fb114ee9eee0cc0a9e452aa6
37.9 GB May 15, 2026
2026-05-09-1778294070-fdns_txt.json.gz
sha1:e2ce7390d4333319df025f5d4b103f7eac8cae8f
14.5 GB May 9, 2026
2026-05-08-1778263682-fdns_mx.json.gz
sha1:275ae1424e9bcdc4420dd0e3a4ec00c439966682
7.2 GB May 9, 2026