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
2026-06-26-1782489995-fdns_caa.json.gz
sha1:d15ca2d8cbe0e7d9457159cc5c3b4d24b13f8b25
5.8 GB June 27, 2026
2026-06-26-1782484481-fdns_mx.json.gz
sha1:c30606b81a867ec1c0cfadade217d89aee365328
7.4 GB June 27, 2026
2026-06-26-1782433952-fdns_aaaa.json.gz
sha1:afc094210a1e3447e79e473d5f3558c81617dde1
11.7 GB June 26, 2026
2026-06-26-1782433402-fdns_txt.json.gz
sha1:54bf397cec5ea3dad3aa338c822eb5eccc1b9d81
14.5 GB June 26, 2026
2026-06-26-1782432893-fdns_cname.json.gz
sha1:69dadb2272aa2f0355aed0519f2fe8326f81ceda
4.4 GB June 26, 2026
2026-06-26-1782432342-fdns_any.json.gz
sha1:b8cebf326cb47d8a0e0c45b4c2f0cb1745030837
70.2 GB June 26, 2026
2026-06-20-1781915296-fdns_mx.json.gz
sha1:d1941ecc563010bb6a19b20e2a7ac7d75c45a287
7.4 GB June 20, 2026
2026-06-19-1781898739-fdns_caa.json.gz
sha1:b8e020aeecdf006e0977febe6cb6d49cef9a5e27
5.8 GB June 20, 2026
2026-06-19-1781890800-fdns_cname.json.gz
sha1:204ebdcd750209e686d0f6daf057c07f2c8f3423
4.4 GB June 20, 2026
2026-06-19-1781884678-fdns_aaaa.json.gz
sha1:a0a38d2141ac4f9fc8d8941968522f408bd5563a
11.7 GB June 20, 2026