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
2025-08-22-1755896534-fdns_ns.json.gz
5f9fe930c7dd9d9dfff8a989d9d26b549df799fb
10.2 GB Aug. 23, 2025
2025-08-22-1755865890-fdns_cname.json.gz
cdd91e30e41a97dbcadf8eb29125aeb0f6637010
2.6 GB Aug. 22, 2025
2025-08-22-1755863583-fdns_aaaa.json.gz
795aea496b461f56180f03d09ea40e0b1982cf7e
8.0 GB Aug. 23, 2025
2025-08-22-1755863426-fdns_a.json.gz
0622fb16fe5f5f5b3091f7e2d7e2cf6314f42250
28.1 GB Aug. 23, 2025
2025-08-22-1755822836-fdns_any.json.gz
098eb712e8e2f6f2d65faebd61c27df53b3f2492
64.8 GB Aug. 22, 2025
2025-08-22-1755822307-fdns_caa.json.gz
d4f774a996fd425a9b2992d8b4da9c9edcd07689
3.3 GB Aug. 22, 2025
2025-08-22-1755821785-fdns_txt.json.gz
138c26457155a3749d042b566f9a6053b5111926
8.8 GB Aug. 22, 2025
2025-08-22-1755821270-fdns_mx.json.gz
adf91259c0b138c580c0906a7e0e2d64ea7cecd3
5.1 GB Aug. 22, 2025
2025-08-15-1755283994-fdns_caa.json.gz
c188b968e4e88b5e18a020a46bb8f43ba6267817
3.2 GB Aug. 16, 2025
2025-08-15-1755268833-fdns_mx.json.gz
20f4b9b84909c2e6f40213a1a67855e469441681
5.1 GB Aug. 16, 2025