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.
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| File Name | SHA1-Fingerprint | Size | Updated At | |
|---|---|---|---|---|
|
20260415/2026-04-15-1776237177-imap_starttls_143_names.gz |
2bd38a15a56ff1da1bb96ecda2c2c076b7d7d855 
|
76.2 MB | April 15, 2026 |
|
|
20260415/2026-04-15-1776237177-imap_starttls_143_certs.gz |
3dd489b61af64dde294e77f10c7563a102f7464a
|
3.4 GB | April 15, 2026 |
|
|
20260415/2026-04-15-1776224065-smtps_465_names.gz |
74dd87a20b421b880d55e1af92d4165e73b79974
|
84.6 MB | April 15, 2026 |
|
|
20260415/2026-04-15-1776224065-smtps_465_certs.gz |
52a1d4145e4ab2b84af14d649e3af0c47b26a5fe
|
3.8 GB | April 15, 2026 |
|
|
20260414/2026-04-14-1776206455-pop3s_995_names.gz |
666c694c96ec435afb06cf0635febcb756533f92
|
84.1 MB | April 15, 2026 |
|
|
20260414/2026-04-14-1776206455-pop3s_995_certs.gz |
d49b2035046e5d9b55634e938a789d76f9bb0514
|
4.1 GB | April 15, 2026 |
|
|
20260414/2026-04-14-1776143229-smtp_starttls_25_names.gz |
6f088ed96dda29c523582e447cf6005245dfd5e7
|
71.1 MB | April 14, 2026 |
|
|
20260414/2026-04-14-1776143229-smtp_starttls_25_certs.gz |
c3453409734b8a844fcdceaa48d7ce474aca1f2d
|
3.3 GB | April 14, 2026 |
|
|
20260404/2026-04-04-1775289696-tcp_dns_853_names.gz |
7057ce17d933c4a500a267098586056bd6acf833
|
5.2 MB | April 4, 2026 |
|
|
20260404/2026-04-04-1775289696-tcp_dns_853_certs.gz |
66bdcf56d94c6042935a7e027d323f2d23e15f90
|
219.8 MB | April 4, 2026 |
