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 | |
|---|---|---|---|---|
|
20260128/2026-01-28-1769608155-imap_starttls_143_names.gz |
e2dcca0c0faeafdf34e54d512241c093cf799794 
|
78.1 MB | Jan. 28, 2026 |
|
|
20260128/2026-01-28-1769608155-imap_starttls_143_certs.gz |
a1ad1be15973d0d74edfd57dd3fa7a3a1231f1a1
|
3.5 GB | Jan. 28, 2026 |
|
|
20260128/2026-01-28-1769601389-smtps_465_names.gz |
060918c65a4cda2b1e6f23a4036057bba41d6294
|
87.8 MB | Jan. 28, 2026 |
|
|
20260128/2026-01-28-1769601389-smtps_465_certs.gz |
3f9579e8a1a73a9d946595ebfeacb6f5ccd817cd
|
3.9 GB | Jan. 28, 2026 |
|
|
20260128/2026-01-28-1769592708-smtp_starttls_25_names.gz |
f3de19b4a107a6e84bae0f0b196503b221f8316b
|
72.6 MB | Jan. 28, 2026 |
|
|
20260128/2026-01-28-1769592708-smtp_starttls_25_certs.gz |
8bb59bdbf76a6d0cbb454438f034eb3523c4137e
|
3.4 GB | Jan. 28, 2026 |
|
|
20260128/2026-01-28-1769573521-imaps_993_names.gz |
bc51f88887256ea816baf56503bc631ce558c720
|
94.3 MB | Jan. 28, 2026 |
|
|
20260128/2026-01-28-1769573521-imaps_993_certs.gz |
a505516a47459202c378f4c12a3e272f403b1b3a
|
4.4 GB | Jan. 28, 2026 |
|
|
20260127/2026-01-27-1769520322-pop3_starttls_110_names.gz |
738c21a87c3720f4764cd93244da15b187064c06
|
79.5 MB | Jan. 27, 2026 |
|
|
20260127/2026-01-27-1769520322-pop3_starttls_110_certs.gz |
5f711c9db28d398805a749a4eb6fcf81ae6e0c79
|
3.7 GB | Jan. 27, 2026 |
