X.509 certificate metadata observed when communicating with miscellaneous non-HTTPS endpoints, such as IMAPS, POP3S, etc.
Dataset Details
The dataset contains a collection of metadata related to the net new X.509 certificates observed in each study when considering all SSL studies that ran prior. The _hosts and _endpoints files provide mapping between the IPs/endpoints and the fingerprint of the X.509 certificate presented. The _certs file provides a mapping of the net new certificates from a given study and the corresponding fingerprint. The _names file provides a mapping of the X.509 certificate name (CN) to its fingerprint.
Full Dataset Listing
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| File Name | SHA1-Fingerprint | Size | Updated At | |
|---|---|---|---|---|
|
20260203/2026-02-03-1770144274-tcp_ldap_636_names.gz |
b557750e1f5d8e4a373c36d05d4bdd08a658e371 
|
973.3 KB | Feb. 3, 2026 |
|
|
20260203/2026-02-03-1770144274-tcp_ldap_636_certs.gz |
418cc30f11cbdee6d125253213f240d8cc74779e
|
37.5 MB | Feb. 3, 2026 |
|
|
20260203/2026-02-03-1770111225-mqtt_8883_names.gz |
8d67979f3f446b4664b3224491889f118a33a6d9
|
2.4 MB | Feb. 3, 2026 |
|
|
20260203/2026-02-03-1770111225-mqtt_8883_certs.gz |
8acf7cbaeef2b7ac8a5f0f8685b1506837be0a34
|
102.4 MB | Feb. 3, 2026 |
|
|
20260203/2026-02-03-1770091402-tcp_ldap_3268_names.gz |
bb278e76616955b6924531a93982f711d27aa775
|
152.2 KB | Feb. 3, 2026 |
|
|
20260203/2026-02-03-1770091402-tcp_ldap_3268_certs.gz |
7feed2eddd38f1bf452d22a94b26f76864db2251
|
4.4 MB | Feb. 3, 2026 |
|
|
20260203/2026-02-03-1770087030-tcp_ldap_389_names.gz |
28fc6ed179ccd3641664f7bd6f6515bf14a21acd
|
861.1 KB | Feb. 3, 2026 |
|
|
20260203/2026-02-03-1770087030-tcp_ldap_389_certs.gz |
276184dd7455dfa75d6cb3a62e1f198ba8ccc029
|
33.3 MB | Feb. 3, 2026 |
|
|
20260130/2026-01-30-1769799827-smtp_starttls_587_names.gz |
ad64f5b481dbfc7034c8e7caa2615e9f87dc82a6
|
51.6 MB | Jan. 30, 2026 |
|
|
20260130/2026-01-30-1769799827-smtp_starttls_587_certs.gz |
d3638a527b4a58cff781eac1c6d444e76a324f33
|
2.5 GB | Jan. 30, 2026 |
