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 | |
|---|---|---|---|---|
|
20260502/2026-05-02-1777751707-smtp_starttls_587_names.gz |
sha1:9a22223928ed875b3d1d7c40eb8e2580df6841e0 
|
50.4 MB | May 2, 2026 |
|
|
20260502/2026-05-02-1777751707-smtp_starttls_587_certs.gz |
sha1:c5eca883679746dfd395f64a39e91cc1c954a777
|
2.4 GB | May 2, 2026 |
|
|
20260502/2026-05-02-1777721034-imaps_993_names.gz |
sha1:ab5667bfa23e70c6b4e911d0e9312769ac5cc78b
|
91.1 MB | May 2, 2026 |
|
|
20260502/2026-05-02-1777721034-imaps_993_certs.gz |
sha1:e79b72ea9907d0b06ae45419363292f7399cca87
|
4.4 GB | May 2, 2026 |
|
|
20260415/2026-04-15-1776251320-pop3_starttls_110_names.gz |
676748a4228a270f6879fccde5136e9f16c18049
|
77.2 MB | April 15, 2026 |
|
|
20260415/2026-04-15-1776251320-pop3_starttls_110_certs.gz |
50d00a415e6d1da78cb7ed33fdfa55685dda537c
|
3.6 GB | April 15, 2026 |
|
|
20260415/2026-04-15-1776242689-imaps_993_names.gz |
12135bfad0bc8428835a5a29e0542c7b130d41da
|
91.5 MB | April 15, 2026 |
|
|
20260415/2026-04-15-1776242689-imaps_993_certs.gz |
90cf95947725840bf6410a7d339a989df9038e35
|
4.4 GB | April 15, 2026 |
|
|
20260415/2026-04-15-1776241684-smtp_starttls_587_names.gz |
bb5ad4cac49c3e9ed995aa3d0c4ac25aae22c2c5
|
50.3 MB | April 15, 2026 |
|
|
20260415/2026-04-15-1776241684-smtp_starttls_587_certs.gz |
b3675826e5448eb7dfc8da281db2c79830557702
|
2.5 GB | April 15, 2026 |
