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
2026-01-09-1767918791-fdns_mx.json.gz
0f309167bd8289bd5ea11b3100bb891ae372be16
6.5 GB Jan. 9, 2026
2026-01-09-1767918282-fdns_aaaa.json.gz
4d99d3746d36e2b3bcd2de02f9034bafd6a62a2b
10.2 GB Jan. 9, 2026
2026-01-09-1767917738-fdns_ns.json.gz
1ed31c0abb33ae39fd55d179169343f7a9c526ee
16.0 GB Jan. 9, 2026
2026-01-09-1767917208-fdns_caa.json.gz
66762c5b24da39bf8f40b1a09dd16754a1b43317
6.5 GB Jan. 9, 2026
2026-01-03-1767403864-fdns_a.json.gz
4b5f9ed4273bfe9956e22325ccaf0e0a5a1bb73c
34.9 GB Jan. 3, 2026
2026-01-02-1767393552-fdns_caa.json.gz
6b3d673ac5f4cc401f0ac88ba3dff373bedf7567
6.6 GB Jan. 3, 2026
2026-01-02-1767365786-fdns_txt.json.gz
470bf71c3284f0022cb422d6a946b7c8aae82330
13.5 GB Jan. 3, 2026
2026-01-02-1767363769-fdns_ns.json.gz
d73229213926e6397b0858d195294f86273eee86
16.1 GB Jan. 3, 2026
2026-01-02-1767336087-fdns_aaaa.json.gz
65dfacaac3526e90dceb0093024af2af9fd42d1d
10.2 GB Jan. 2, 2026
2026-01-02-1767313412-fdns_any.json.gz
43d8493d15708ecc02ebcadc05f7996ba6449f57
74.6 GB Jan. 3, 2026