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 | |
|---|---|---|---|---|
|
20260115/2026-01-15-1768484363-imap_starttls_143_names.gz |
fd4a77b82c7a53bfc143f031c358ae8ef1308434 
|
78.2 MB | Jan. 15, 2026 |
|
|
20260115/2026-01-15-1768484363-imap_starttls_143_certs.gz |
c8bd02146e6615b7e1ad67ae262b3af5903f7732
|
3.6 GB | Jan. 15, 2026 |
|
|
20260115/2026-01-15-1768478806-pop3_starttls_110_names.gz |
844a2d5573f099bbf85b53b3df1d3cbf3dfebcc9
|
79.9 MB | Jan. 15, 2026 |
|
|
20260115/2026-01-15-1768478806-pop3_starttls_110_certs.gz |
07d32bf6d3b4beb41dcdfc5e255394d78938d56e
|
3.8 GB | Jan. 15, 2026 |
|
|
20260115/2026-01-15-1768470005-smtp_starttls_25_names.gz |
a25700377baf44ef2dc634cc4d9caf58311b6969
|
72.0 MB | Jan. 15, 2026 |
|
|
20260115/2026-01-15-1768470005-smtp_starttls_25_certs.gz |
9d84a119c79ca4a880dad792da08ffb370bde91d
|
3.4 GB | Jan. 15, 2026 |
|
|
20260115/2026-01-15-1768465786-pop3s_995_names.gz |
d1986e5775654b3751ea6774665e692f132907b7
|
85.2 MB | Jan. 15, 2026 |
|
|
20260115/2026-01-15-1768465786-pop3s_995_certs.gz |
03fbf344a0e4b420b37a8e74703bd0c8ccb03837
|
4.1 GB | Jan. 15, 2026 |
|
|
20260115/2026-01-15-1768436225-smtp_starttls_587_names.gz |
4b9a72f6a5b475333f74eeca98b1cc993564e982
|
51.1 MB | Jan. 15, 2026 |
|
|
20260115/2026-01-15-1768436225-smtp_starttls_587_certs.gz |
b72a47c99b037b33058a2b37b87f02a8f44a2093
|
2.5 GB | Jan. 15, 2026 |
