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
2026-03-13-1773422541-fdns_cname.json.gz
4698bedb74f8174df48c990df6c50d6f184a3740
3.9 GB March 14, 2026
2026-03-13-1773420191-fdns_aaaa.json.gz
a01a5f74464c0a3a4e5475b18cd890bc4d01ea38
10.8 GB March 14, 2026
2026-03-13-1773361939-fdns_any.json.gz
b274504e255cde18b1d8f7608eac67c1cecd2564
77.5 GB March 14, 2026
2026-03-13-1773361400-fdns_txt.json.gz
49930c8b3eeb78f20ce8ea662fd787d8f3dccac6
14.2 GB March 13, 2026
2026-03-13-1773360856-fdns_mx.json.gz
77bf934d8b4154add6cdfabff507807270cdabc9
7.0 GB March 13, 2026
2026-03-13-1773360333-fdns_a.json.gz
2cfa5998e7680ee7621e3bc13db33be2caff9acc
37.4 GB March 13, 2026
2026-03-07-1772854634-fdns_a.json.gz
276af79f201f62e1a0f125b53a842eadfc2a14ae
27.8 GB March 7, 2026
2026-03-06-1772824418-fdns_caa.json.gz
ae69ac98c18ac1f64c32d62fad3968439b117016
6.3 GB March 7, 2026
2026-03-06-1772817832-fdns_mx.json.gz
5c41eae8ddcf6d42461515fd4fb1a1df9752d8e6
6.9 GB March 7, 2026
2026-03-06-1772817036-fdns_cname.json.gz
7f8c2e7d941f90bc358d4f050e87d14885231884
3.9 GB March 7, 2026