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 neccessary. 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
2025-07-19-1752951213-fdns_cname.json.gz
2d60fd00617da9fde0230bd06924c08dc9a0cd71
1.9 GB July 20, 2025
2025-07-19-1752906364-fdns_a.json.gz
17ab122d8bd225804c5922e194db1785c4686b3b
20.4 GB July 20, 2025
2025-07-19-1752899011-fdns_txt.json.gz
602bdfd67998220e51745e3968f58cea9400326f
6.9 GB July 20, 2025
2025-07-19-1752894199-fdns_mx.json.gz
58ebba475e22de1a0e71d1a3b4ebed8318011f99
4.0 GB July 20, 2025
2025-07-18-1752798787-fdns_any.json.gz
8f4be883fbfc2bf6b1d4510cd0cb5a07cccbf52d
58.5 GB July 19, 2025
2025-07-18-1752798262-fdns_caa.json.gz
cdb546ee2364d414d17d002c4816e2e983a04bea
2.4 GB July 19, 2025
2025-07-18-1752797708-fdns_aaaa.json.gz
96024e22669f03066413ecbcda673d898bdaec65
6.3 GB July 19, 2025
2025-07-18-1752797172-fdns_ns.json.gz
044b698b7282b75527d773d56f1317d495eb00dd
7.8 GB July 19, 2025
2025-07-12-1752347008-fdns_mx.json.gz
f2b6cc3e92f31ca975949bbd226f7ae5a44949b0
4.0 GB July 13, 2025
2025-07-12-1752299116-fdns_cname.json.gz
ae6f599588dfca140c26b2e0d724fdab8dca2fab
1.9 GB July 13, 2025