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
2025-07-01-1751330003-fdns_txt_mx_mta-sts.json.gz
efd5f56cf96f4a59469fe430fe3aac8c66d3b4e0
18.9 MB July 1, 2025
2025-07-01-1751328897-fdns_txt_mx_dmarc.json.gz
30cf4314d19d989b0b18043fedbcec614a8bcfd6
53.8 MB July 1, 2025
2025-06-29-1751176312-fdns_mx.json.gz
4f8855608b7d16b371f0200f3cda3c2f043269b4
4.1 GB June 30, 2025
2025-06-28-1751126577-fdns_aaaa.json.gz
62860a655d5651edd20b7233519d9894631e23d9
6.4 GB June 29, 2025
2025-06-28-1751116498-fdns_a.json.gz
d6be629a2e051a6ae824f34178c71b4d17f17ff3
20.6 GB June 30, 2025
2025-06-28-1751082669-fdns_caa.json.gz
f58ec03f44560f3fff12b42587139d2b96b253bd
2.5 GB June 29, 2025
2025-06-27-1751022431-fdns_cname.json.gz
324e0e70c3158df31168be7f158210c39f49f4f0
1.9 GB June 28, 2025
2025-06-27-1750983916-fdns_txt.json.gz
d4406e7d8233a00dbd4d5332dd11bd805f4177c2
7.0 GB June 28, 2025
2025-06-27-1750983320-fdns_any.json.gz
abe7e220dd4ff8d7c33782ea618d2eac3a12c9e2
59.5 GB June 28, 2025
2025-06-27-1750982766-fdns_ns.json.gz
fb5b72ce15d9e32a175147ddd5bfb202abb67998
7.8 GB June 28, 2025