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
2026-01-02-1767393552-fdns_caa.json.gz
6b3d673ac5f4cc401f0ac88ba3dff373bedf7567
6.6 GB Jan. 3, 2026
2026-01-02-1767365786-fdns_txt.json.gz
470bf71c3284f0022cb422d6a946b7c8aae82330
13.5 GB Jan. 3, 2026
2026-01-02-1767363769-fdns_ns.json.gz
d73229213926e6397b0858d195294f86273eee86
16.1 GB Jan. 3, 2026
2026-01-02-1767336087-fdns_aaaa.json.gz
65dfacaac3526e90dceb0093024af2af9fd42d1d
10.2 GB Jan. 2, 2026
2026-01-02-1767313412-fdns_any.json.gz
43d8493d15708ecc02ebcadc05f7996ba6449f57
74.6 GB Jan. 3, 2026
2026-01-02-1767312876-fdns_cname.json.gz
5e6f4c9f9c3b73c85c3df85484c27b517de014f8
3.7 GB Jan. 2, 2026
2026-01-02-1767312352-fdns_mx.json.gz
f72fd08279576f79c25bff12c9406e82442858ca
6.5 GB Jan. 2, 2026
2026-01-01-1767227005-fdns_txt_mx_dmarc.json.gz
ae55961860b69d2eb3a7a793daa1cf11ccbabba1
66.2 MB Jan. 1, 2026
2026-01-01-1767225968-fdns_txt_mx_mta-sts.json.gz
2a043560beb3aa1b6ce307dbc691de10db069094
18.3 MB Jan. 1, 2026
2025-12-27-1766797943-fdns_caa.json.gz
d3c8fea13f036a2e1ed738afdbb73e74aeca05ce
6.6 GB Dec. 27, 2025