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
2026-01-17-1768624369-fdns_aaaa.json.gz
09a4f2b76f3bbd1ae8c95979b8dececb0528364a
10.7 GB Jan. 17, 2026
2026-01-16-1768586784-fdns_a.json.gz
48131864d8a04ff0a0d66e231ae22bea2bb83073
37.6 GB Jan. 17, 2026
2026-01-16-1768582542-fdns_caa.json.gz
d30547a8906e74700cc4c5fa0652edf681b1d165
6.6 GB Jan. 17, 2026
2026-01-16-1768576074-fdns_mx.json.gz
b10be56906127784137648c362e57914a237d2c5
6.8 GB Jan. 17, 2026
2026-01-16-1768523663-fdns_any.json.gz
90538f484687974188f2bc51b3b08deba6658e6c
82.5 GB Jan. 17, 2026
2026-01-16-1768523132-fdns_txt.json.gz
3e074452545a8c8085d7344622c4fe80e40788b9
14.1 GB Jan. 16, 2026
2026-01-16-1768522599-fdns_cname.json.gz
b629ad16becd18a82048820c2676e88e9ba11606
3.7 GB Jan. 16, 2026
2026-01-16-1768522057-fdns_ns.json.gz
0d90b30ab6e2adc1bd70157dc9ecca303a2a5f5d
16.8 GB Jan. 16, 2026
2026-01-09-1767990041-fdns_a.json.gz
7bdb7755cdedb216b99483c50bbc601d99a4788e
35.1 GB Jan. 10, 2026
2026-01-09-1767974793-fdns_txt.json.gz
07823cdadcc001d6eef9c77b9ac9519f30c058ad
13.5 GB Jan. 10, 2026