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 | |
|---|---|---|---|---|
|
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 |
|
|
20260415/2026-04-15-1776237177-imap_starttls_143_names.gz |
2bd38a15a56ff1da1bb96ecda2c2c076b7d7d855
|
76.2 MB | April 15, 2026 |
|
|
20260415/2026-04-15-1776237177-imap_starttls_143_certs.gz |
3dd489b61af64dde294e77f10c7563a102f7464a
|
3.4 GB | April 15, 2026 |
|
|
20260415/2026-04-15-1776224065-smtps_465_names.gz |
74dd87a20b421b880d55e1af92d4165e73b79974
|
84.6 MB | April 15, 2026 |
|
|
20260415/2026-04-15-1776224065-smtps_465_certs.gz |
52a1d4145e4ab2b84af14d649e3af0c47b26a5fe
|
3.8 GB | April 15, 2026 |
