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
2026-05-02-1777716143-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
2026-05-02-1777697645-fdns_cname.json.gz
sha1:15b081236648f1fdee53a9daa0c8661dace6f9d0
4.2 GB May 2, 2026
2026-05-01-1777658575-fdns_aaaa.json.gz
sha1:94e33c69f2b2281cd30a889d7d0e95c0b2ebdb26
11.1 GB May 2, 2026
2026-05-01-1777657453-fdns_txt_mx_dmarc.json.gz
sha1:a03dc51d27b86c285f7f93a2ca4c3f2fdec40d30
77.9 MB May 1, 2026
2026-05-01-1777651345-fdns_any.json.gz
sha1:dab09f0deaaff6c9baf84fcb2be1ef7d225516aa
73.7 GB May 2, 2026
2026-05-01-1777650295-fdns_txt_mx_mta-sts.json.gz
sha1:1dee62ae9a33c6de9400e846fb5995e821f93a0c
23.1 MB May 1, 2026
2026-05-01-1777595557-fdns_ns.json.gz
sha1:b79fc08ae5d7d7c376b0c00d38719259e8d023ed
17.0 GB May 1, 2026
2026-05-01-1777594525-fdns_a.json.gz
sha1:e51e0c9f602d9d239918ade8e48a068e55301451
37.3 GB May 1, 2026
2026-05-01-1777593974-fdns_txt.json.gz
sha1:071a6a080706e8ae5a257aded924e6df13954d45
14.5 GB May 1, 2026