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 necessary. 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
2026-05-09-1778294070-fdns_txt.json.gz
sha1:e2ce7390d4333319df025f5d4b103f7eac8cae8f
14.5 GB May 9, 2026
2026-05-08-1778263682-fdns_mx.json.gz
sha1:275ae1424e9bcdc4420dd0e3a4ec00c439966682
7.2 GB May 9, 2026
2026-05-08-1778252402-fdns_a.json.gz
sha1:2da9d66afe37dd5ea3f6a2d810a606e1ed3f5a4a
37.7 GB May 9, 2026
2026-05-08-1778252346-fdns_aaaa.json.gz
sha1:8d300244d1b452768d073c638a40cb09841ac6d4
11.2 GB May 9, 2026
2026-05-08-1778200374-fdns_cname.json.gz
sha1:da9ba317cfd784ea8f3f613ed6fadf9dd6566cec
4.1 GB May 8, 2026
2026-05-08-1778199866-fdns_any.json.gz
sha1:0c34747fd70971119d0beefde46af9ae34b18948
74.2 GB May 9, 2026
2026-05-08-1778199326-fdns_caa.json.gz
sha1:dc65e3e157607ae1ace69a365a66e83c6c2dfed7
5.9 GB May 8, 2026
2026-05-08-1778198778-fdns_ns.json.gz
sha1:448cea8cc82272f20978a2eceea690bff32130cb
16.8 GB May 8, 2026
2026-05-02-1777716143-fdns_caa.json.gz
sha1:2d1724b71510d85bfdf4913e4e832bf9cf5d249f
5.9 GB May 3, 2026
2026-05-02-1777707284-fdns_mx.json.gz
sha1:f0cd9264945064920d6ac4a6c123ddf443ad6e61
7.2 GB May 2, 2026