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 | |
|---|---|---|---|---|
|
20260520/2026-05-20-1779294058-smtp_starttls_25_names.gz |
sha1:ce5c20ad3f56d4e716ecb5611394a6df8804e0b3 
|
70.1 MB | May 20, 2026 |
|
|
20260520/2026-05-20-1779294058-smtp_starttls_25_certs.gz |
sha1:28a8002b54a3b5f7935a86f9452287eedbc881fb
|
3.2 GB | May 20, 2026 |
|
|
20260520/2026-05-20-1779280342-pop3s_995_names.gz |
sha1:2d61428f0beb82acf8026ffb490860eceefb3a07
|
81.1 MB | May 21, 2026 |
|
|
20260520/2026-05-20-1779280342-pop3s_995_certs.gz |
sha1:260ce0c55dee3639da33cc735a29b566cf820a5f
|
3.9 GB | May 21, 2026 |
|
|
20260520/2026-05-20-1779237103-imap_starttls_143_names.gz |
sha1:26993940cfee97d5c7796259424dbc1f594edcaa
|
73.6 MB | May 20, 2026 |
|
|
20260520/2026-05-20-1779237103-imap_starttls_143_certs.gz |
sha1:1611b9ae90de84d412813d9c983ff5f80ad6cde0
|
3.2 GB | May 20, 2026 |
|
|
20260519/2026-05-19-1779217278-smtp_starttls_587_names.gz |
sha1:61d966fdbf9eee4c152e316f4a64e4ce39685f19
|
49.7 MB | May 20, 2026 |
|
|
20260519/2026-05-19-1779217278-smtp_starttls_587_certs.gz |
sha1:4ee39cffa1ab1921523c07bc88a7a340f1309b9f
|
2.4 GB | May 20, 2026 |
|
|
20260516/2026-05-16-1778957163-pop3_starttls_110_names.gz |
sha1:444e54e5f87e8669819d0a439cc3ff83e8f0aca7
|
75.2 MB | May 17, 2026 |
|
|
20260516/2026-05-16-1778957163-pop3_starttls_110_certs.gz |
sha1:f550c27113e893d3dbb868caf68643ede3968da1
|
3.5 GB | May 17, 2026 |
