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
2025-11-01-1761960967-fdns_txt_mx_mta-sts.json.gz
5fa5e475578d086d6c5109079884e85bad0b0fa9
18.9 MB Nov. 1, 2025
2025-11-01-1761959992-fdns_txt_mx_dmarc.json.gz
95ab36b2f983871948f87a70cd55d8007ed2e2d6
62.4 MB Nov. 1, 2025
2025-10-31-1761927449-fdns_txt.json.gz
80de0beac09c02613bcc6afb89b3f3cd9007a9f3
12.0 GB Nov. 1, 2025
2025-10-31-1761920787-fdns_aaaa.json.gz
7fe50c3b71d5164aabeca3ddb9af66c4a1e2f3da
9.2 GB Nov. 1, 2025
2025-10-31-1761920734-fdns_a.json.gz
09121f5459a4d1e81ff3b5662d3e57aa6664483b
32.0 GB Nov. 1, 2025
2025-10-31-1761870719-fdns_any.json.gz
0513502ac1c807648cf1f083eab80f92f973071b
70.9 GB Oct. 31, 2025
2025-10-31-1761870206-fdns_caa.json.gz
856711055c7af8becf8a93bd72005756a84b520d
5.4 GB Oct. 31, 2025
2025-10-31-1761869653-fdns_mx.json.gz
4472dfec29b4aa0b1612b99008539ed389455f85
6.5 GB Oct. 31, 2025
2025-10-31-1761869109-fdns_ns.json.gz
dc4696488db83ccb0cb031fc29652f10d0655396
13.6 GB Oct. 31, 2025
2025-10-25-1761358145-fdns_txt.json.gz
d006a5c753a7662ee6e03f1d6005ce21e0097814
11.8 GB Oct. 25, 2025