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
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
2025-12-26-1766764917-fdns_a.json.gz
25b5f8827de1f34e9feb45a0d58b01897a8134f6
34.8 GB Dec. 27, 2025
2025-12-26-1766762331-fdns_txt.json.gz
3644812aed59d437ce2f93a348594aef5a647185
13.4 GB Dec. 27, 2025
2025-12-26-1766760104-fdns_ns.json.gz
808c463520303af7409a1341d92a313bba4c7b0d
16.1 GB Dec. 27, 2025
2025-12-26-1766709151-fdns_cname.json.gz
7a4f6ecad3b6979f226a493b2b9577caa66bc081
3.6 GB Dec. 26, 2025
2025-12-26-1766708607-fdns_mx.json.gz
959b6bc93c8cc6d7bf48b476e3eab8c8cf7c3d8e
6.4 GB Dec. 26, 2025
2025-12-26-1766708098-fdns_aaaa.json.gz
c4a77baa4c12cada055ef873a1a3dc8b2fbf3db2
10.1 GB Dec. 26, 2025
2025-12-26-1766707564-fdns_any.json.gz
f4fb9f3368642c5118d0d791048cb3c5e36f96a9
73.9 GB Dec. 26, 2025