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 | |
|---|---|---|---|---|
|
20260227/2026-02-27-1772205217-smtp_starttls_25_names.gz |
4ee45ea2b60b917f887f40848b4f0cb1e9bf6984 
|
72.3 MB | Feb. 27, 2026 |
|
|
20260227/2026-02-27-1772205217-smtp_starttls_25_certs.gz |
e7d3fc6a75bf58e3c2a10e7c1d7e70f2c0e03645
|
3.4 GB | Feb. 27, 2026 |
|
|
20260217/2026-02-17-1771295042-pop3_starttls_110_names.gz |
d33cd8e5458c91edad1f2c40b6939cd56205399c
|
79.9 MB | Feb. 17, 2026 |
|
|
20260217/2026-02-17-1771295042-pop3_starttls_110_certs.gz |
6bf93395d1e395295aeab20dc7b426f85021d7b0
|
3.8 GB | Feb. 17, 2026 |
|
|
20260217/2026-02-17-1771286455-smtps_465_names.gz |
fc340a29402dad1de50b1da55106b98a1cbd3007
|
87.2 MB | Feb. 17, 2026 |
|
|
20260217/2026-02-17-1771286455-smtps_465_certs.gz |
7477bc69b88f7c226781394d00718e97705d6faf
|
3.9 GB | Feb. 17, 2026 |
|
|
20260216/2026-02-16-1771284350-imaps_993_names.gz |
79dcb6a6ca109bacbb4887d1657bef3b3e6b9293
|
94.3 MB | Feb. 17, 2026 |
|
|
20260216/2026-02-16-1771284350-imaps_993_certs.gz |
0e67c9815182f8563a2532cf2427387f0fbe65a9
|
4.5 GB | Feb. 17, 2026 |
|
|
20260216/2026-02-16-1771282638-imap_starttls_143_names.gz |
817c47f76e695609087fc8f00a53e4e1a9bb38cb
|
78.4 MB | Feb. 17, 2026 |
|
|
20260216/2026-02-16-1771282638-imap_starttls_143_certs.gz |
d1ef55f0485a5820bc18a6250ec7fcaa6bc43e20
|
3.5 GB | Feb. 17, 2026 |
