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
2026-05-30-1780110180-fdns_txt.json.gz
sha1:533e0932bbece28188848956defea4dc840816e3
11.4 GB May 30, 2026
2026-05-29-1780069328-fdns_caa.json.gz
sha1:4bff644595d6c87364d30c06bbe2550575eaed6c
6.0 GB May 30, 2026
2026-05-29-1780068075-fdns_aaaa.json.gz
sha1:cd88a76ed118bd0858c45b938398114457d9df8b
11.7 GB May 30, 2026
2026-05-29-1780014217-fdns_any.json.gz
sha1:1f64d398c0ebc047749cff29601bac59d19582e0
75.4 GB May 30, 2026
2026-05-29-1780013692-fdns_cname.json.gz
sha1:7fb1252f180a71640a931285e5b5528b638ac808
4.4 GB May 29, 2026
2026-05-29-1780013140-fdns_mx.json.gz
sha1:1dc2bdffed13771760628557752666b262dd6301
7.3 GB May 29, 2026
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