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
2026-07-24-1784920723-fdns_mx.json.gz
sha1:562ba0d17ab734665a520e3389aa324da3c67abe
7.8 GB July 25, 2026
2026-07-24-1784915819-fdns_caa.json.gz
sha1:c0e817af92771e389c33002b9352d46b8f39293b
6.1 GB July 25, 2026
2026-07-24-1784913340-fdns_cname.json.gz
sha1:6f295868384cd887a10d180201eda6e6167dc4a2
4.7 GB July 25, 2026
2026-07-24-1784853255-fdns_ns.json.gz
sha1:c1ed01937d9a78c58944878976eeb57fd93c0f91
18.1 GB July 24, 2026
2026-07-24-1784852703-fdns_aaaa.json.gz
sha1:c50f831e801699843aef2632558eea348df990f6
12.3 GB July 24, 2026
2026-07-24-1784852166-fdns_any.json.gz
sha1:eb2775f2a7cd0f422209ddd43e6d2cffa9e01d7d
74.9 GB July 25, 2026
2026-07-24-1784851641-fdns_txt.json.gz
sha1:bc7ed822496e00761397d7068415a22c6f5234af
14.9 GB July 24, 2026
2026-07-18-1784336600-fdns_txt.json.gz
sha1:82ee7fbc611674e40777a23fd31cd3ad4c1445f2
15.1 GB July 18, 2026
2026-07-17-1784324578-fdns_caa.json.gz
sha1:b7ddcc67515387d3b1d76e2f2ca239a712a43e62
6.0 GB July 18, 2026
2026-07-17-1784312869-fdns_cname.json.gz
sha1:d1793dc85e6295a526bb272f80d1c3cae5bdc835
4.6 GB July 18, 2026