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
2025-10-03-1759450454-fdns_mx.json.gz
0dfa335d8b3ed79f71183bdf2c6aea1d5732d152
5.7 GB Oct. 3, 2025
2025-10-03-1759449909-fdns_txt.json.gz
bd4965b53144bbc1d9f590910df1b8f0baa2bebf
10.4 GB Oct. 3, 2025
2025-10-01-1759278161-fdns_txt_mx_dmarc.json.gz
2a08cbe0a4839b37fa0a19ddb311cefff3063e2f
57.4 MB Oct. 1, 2025
2025-10-01-1759277628-fdns_txt_mx_mta-sts.json.gz
a597102d95a4bb7d9e5ac48d35adea85a3317bb7
18.5 MB Oct. 1, 2025
2025-09-27-1758940674-fdns_caa.json.gz
84eac7799d1c89cd57cec495491b4515b0f1728e
4.3 GB Sept. 27, 2025
2025-09-26-1758893676-fdns_mx.json.gz
9f62ea64ee52a038183c6988570602a1fb964372
5.6 GB Sept. 27, 2025
2025-09-26-1758893555-fdns_ns.json.gz
1cd339953376ccf4ad10f7f71bca3a79197bda57
11.5 GB Sept. 27, 2025
2025-09-26-1758891639-fdns_any.json.gz
cdd1ea8b3d291ad19434b5a6a3dd8fca3b9c7fbf
68.8 GB Sept. 27, 2025
2025-09-26-1758846786-fdns_cname.json.gz
6ba063a3852facf1f9b0de36cd80704a2b50be9a
2.9 GB Sept. 26, 2025
2025-09-26-1758846200-fdns_a.json.gz
92f68e34c200afbc918a0e14de536f38a1fe3dd5
29.1 GB Sept. 26, 2025