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 | |
|---|---|---|---|---|
|
20260216/2026-02-16-1771279462-pop3s_995_names.gz |
00de2c2fad5ccf0f5ce881d37c462025729d1cab 
|
86.7 MB | Feb. 17, 2026 |
|
|
20260216/2026-02-16-1771279462-pop3s_995_certs.gz |
6b3c98a12587de4fd0ce62dd7cffcd672278d104
|
4.3 GB | Feb. 17, 2026 |
|
|
20260216/2026-02-16-1771264319-smtp_starttls_587_names.gz |
8e4912fe3738713e9692dce492e8d173848b6858
|
51.0 MB | Feb. 16, 2026 |
|
|
20260216/2026-02-16-1771264319-smtp_starttls_587_certs.gz |
d2d35cb6ef443ffa1f8b3844bded9155969aa8b5
|
2.4 GB | Feb. 16, 2026 |
|
|
20260216/2026-02-16-1771263748-smtp_starttls_25_names.gz |
20aa69ba71023c28830ae5cec71acc6c3e0e4b16
|
71.5 MB | Feb. 16, 2026 |
|
|
20260216/2026-02-16-1771263748-smtp_starttls_25_certs.gz |
34af2eb6da8eef0e6962d14b2cd91b5978bb14e8
|
3.3 GB | Feb. 16, 2026 |
|
|
20260204/2026-02-04-1770201903-ftps_990_names.gz |
915219bedcd237a231f156934e929b9d005cea63
|
5.7 MB | Feb. 4, 2026 |
|
|
20260204/2026-02-04-1770201903-ftps_990_certs.gz |
5887077383de7107428af83780a011aacd016e73
|
302.3 MB | Feb. 4, 2026 |
|
|
20260204/2026-02-04-1770192396-nntps_563_names.gz |
e94493dbe2a07aa431e4e0c656e58e233618c126
|
150.6 KB | Feb. 4, 2026 |
|
|
20260204/2026-02-04-1770192396-nntps_563_certs.gz |
ebead5f28d4967cb18b1e56e833b3222149d9246
|
6.8 MB | Feb. 4, 2026 |
