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
2026-05-22-1779486088-fdns_cname.json.gz
sha1:e9c177666861b34756ddb04e7796bbac1354779c
4.4 GB May 23, 2026
2026-05-22-1779472553-fdns_txt.json.gz
sha1:b223ce83e001f6be8391c7b55ec22cfeb38d355c
15.0 GB May 23, 2026
2026-05-22-1779468133-fdns_any.json.gz
sha1:35681054509107d48e4db89553ab30d8b417cecc
75.5 GB May 23, 2026
2026-05-22-1779462647-fdns_mx.json.gz
sha1:8faf105c3dde51949405e497e847e066a55fcea9
7.3 GB May 23, 2026
2026-05-22-1779409976-fdns_aaaa.json.gz
sha1:c69fea4042942b69cdf73bd99753047717a609b8
11.4 GB May 22, 2026
2026-05-22-1779409488-fdns_a.json.gz
sha1:1a449a99503e6ce86e41cdaccda5feba5d5d620c
37.3 GB May 22, 2026
2026-05-22-1779408950-fdns_caa.json.gz
sha1:00cfb609e51c3b9170997cf837ee0532f051ed83
6.1 GB May 22, 2026
2026-05-22-1779408411-fdns_ns.json.gz
sha1:b69899da5245041677109bd3abf8eb46e04da875
17.4 GB May 22, 2026
2026-05-17-1779020500-fdns_caa.json.gz
sha1:693be27e6a298eaf15cdb21651b649dc489a4e25
6.1 GB May 18, 2026
2026-05-15-1778880692-fdns_txt.json.gz
sha1:d9bc63dd723115dbcfcf00fde16a61ed592bfc95
14.8 GB May 16, 2026