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

Existing Open Data users can sign in for access. See the About page for information on requesting access.

File Name SHA1-Fingerprint Size Updated At
2025-08-08-1754664397-fdns_caa.json.gz
44f4bb0c75279a53f1e6a50b1b71ae945699c377
1.0 GB Aug. 8, 2025
2025-08-08-1754642496-fdns_txt.json.gz
b65de8585df6e63b775b570770714bf3da4b66c3
4.9 GB Aug. 8, 2025
2025-08-08-1754639656-fdns_cname.json.gz
4699942f401541753648f81370b01d9662ef96bf
191.4 MB Aug. 8, 2025
2025-08-08-1754638656-fdns_a.json.gz
02c808ec60c89cc16da62df99894bfab00929cb4
18.3 GB Aug. 8, 2025
2025-08-08-1754613179-fdns_aaaa.json.gz
6cc722580fe8b2c2da9986e07acc7c09fe519d37
2.6 GB Aug. 8, 2025
2025-08-08-1754612643-fdns_ns.json.gz
ad36f8d14bd79b8bb239ff1747d83d6256f489a1
6.2 GB Aug. 8, 2025
2025-08-08-1754612124-fdns_any.json.gz
79a57a1ec6857eae7dac123759c00edef58571e9
51.5 GB Aug. 8, 2025
2025-08-08-1754611571-fdns_mx.json.gz
7262556f9dfe6e9e9e05ce0ade982feac1a70e3f
2.7 GB Aug. 8, 2025
2025-08-04-1754349309-fdns_any.json.gz
7853f28c9f746bc9958cd3821cd201d7cf48b078
64.0 GB Aug. 5, 2025
2025-08-04-1754296378-fdns_txt_mx_mta-sts.json.gz
ebcb53c728a70f8f39955e56313c0e1cf2d61f36
18.3 MB Aug. 4, 2025