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
2026-03-07-1772854634-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
2026-03-06-1772757114-fdns_ns.json.gz
8e6fb7ea16764c6225cf7196b9c011ec9832729c
16.8 GB March 6, 2026
2026-03-06-1772756573-fdns_txt.json.gz
5af1119d8db2b0120e1077db8a00b6615896cb33
14.0 GB March 6, 2026
2026-03-06-1772756024-fdns_any.json.gz
6f0cb5d8b7cd20cd463243a8895a59cb7f9d37d6
76.8 GB March 7, 2026
2026-03-06-1772755488-fdns_aaaa.json.gz
1f5203fbd8227432d3031555b02efcd1b6a7fc43
10.6 GB March 6, 2026
2026-03-01-1772324079-fdns_txt_mx_dmarc.json.gz
6d5d4e3f788c457b61335a115105afec457699f5
76.9 MB March 1, 2026
2026-03-01-1772323565-fdns_txt_mx_mta-sts.json.gz
e925cbf35fa02f86327c010aeeecfaca296a715c
23.4 MB March 1, 2026