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 | |
|---|---|---|---|---|
|
20260301/2026-03-01-1772354442-pop3s_995_names.gz |
86116f5acca558161f49e94f22eec5c800902208 
|
86.0 MB | March 1, 2026 |
|
|
20260301/2026-03-01-1772354442-pop3s_995_certs.gz |
1f3a25a5a229ccb2b2bb591a8c945db091e33498
|
4.2 GB | March 1, 2026 |
|
|
20260301/2026-03-01-1772343628-smtps_465_names.gz |
be2e5c600475b26c1e4a34918e6dd8cca6b8d3de
|
86.3 MB | March 1, 2026 |
|
|
20260301/2026-03-01-1772343628-smtps_465_certs.gz |
71afdf889f02e826c474daf097dcd5fdd772778d
|
3.8 GB | March 1, 2026 |
|
|
20260228/2026-02-28-1772286829-imaps_993_names.gz |
388ef50adf8945d2ee8653585fc428e53d6cc161
|
93.5 MB | Feb. 28, 2026 |
|
|
20260228/2026-02-28-1772286829-imaps_993_certs.gz |
3ae131629c6c71e4d3f43c6bb33a4eca1678fb85
|
4.5 GB | Feb. 28, 2026 |
|
|
20260227/2026-02-27-1772224290-smtp_starttls_587_names.gz |
537a62d2888b30f75c239a722642834944b0cd6b
|
51.5 MB | Feb. 27, 2026 |
|
|
20260227/2026-02-27-1772224290-smtp_starttls_587_certs.gz |
2175028aca0c96cf6cecfaa42da11e76c2a288a7
|
2.5 GB | Feb. 27, 2026 |
|
|
20260227/2026-02-27-1772206969-pop3_starttls_110_names.gz |
19c79a2389f583ce1862c66b4bbe1a993d6d9638
|
78.6 MB | Feb. 27, 2026 |
|
|
20260227/2026-02-27-1772206969-pop3_starttls_110_certs.gz |
7c5a654656a8f05090a4459ae32ad869d221da2d
|
3.5 GB | Feb. 27, 2026 |
