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
2026-02-06-1770337428-fdns_any.json.gz
f7ac78e0b474b953b0b814e3fbc953fd72de84f7
82.1 GB Feb. 7, 2026
2026-02-06-1770336856-fdns_ns.json.gz
c6782553bab662a7f940d6653516f13e28a4d3c2
17.0 GB Feb. 6, 2026
2026-02-06-1770336374-fdns_cname.json.gz
e80f73e9e4cfedbe48b55cd5262477e5dac7bce6
3.8 GB Feb. 6, 2026
2026-02-06-1770336023-fdns_aaaa.json.gz
0e9cd36e94daa1c7351f734d20a1cffdd5aace41
10.8 GB Feb. 6, 2026
2026-02-02-1770004120-fdns_mx.json.gz
85fa93e108262951c7751a9bae349a00bd479450
11.8 GB Feb. 2, 2026
2026-02-02-1770004116-fdns_a.json.gz
7bc77278a14c9758c5f3b2be417eec7d5deca504
37.4 GB Feb. 3, 2026
2026-02-01-1769904843-fdns_txt_mx_mta-sts.json.gz
c3ca78b23a6903ed9a3549f8c5491dbd1695195d
21.3 MB Feb. 1, 2026
2026-02-01-1769904293-fdns_txt_mx_dmarc.json.gz
775e71921bd2cf43cc82497117c3ba9eeb7696f5
73.8 MB Feb. 1, 2026
2026-01-30-1769799762-fdns_caa.json.gz
d85a7032d91487b8b6e29a6a8eb4845d2993681d
6.7 GB Jan. 31, 2026
2026-01-30-1769798848-fdns_aaaa.json.gz
e5414b8996bb56797c98f7bd4b460fddd70d8e32
10.8 GB Jan. 31, 2026