It indicates that the SSL/TLS certificate’s Common Name (CN) or Subject Alternative Name (SAN) correctly matches the accessed hostname. This ensures the certificate is legitimately issued for the specific domain, reinforcing trust in the connection.
Three questions every analyst asks before acting on this signal.
It indicates that the SSL/TLS certificate’s Common Name (CN) or Subject Alternative Name (SAN) correctly matches the accessed hostname. This ensures the certificate is legitimately issued for the specific domain, reinforcing trust in the connection.
Hostname validation prevents man-in-the-middle attacks by ensuring that the presented certificate truly belongs to the domain being accessed. Without this verification, attackers could impersonate trusted sites using unrelated certificates.
Domains with valid CN/SAN matches are considered technically compliant and less likely to be involved in SSL spoofing or redirection abuse. However, analysts still correlate this with other behavioral indicators to rule out compromised infrastructure.
A realistic shape of the entry the engine appends to the risk_signals array when this signal fires. Evidence keys are subgroup-default; per-signal overrides documented in the API reference.
{
"slug": "ssl_host_validation",
"name": "Valid Hostname Validation (CN/SAN Match)",
"group": "http_crawling_history",
"subgroup": "ssl_behavior",
"direction": "safe",
"evidence": {
"cert_issued_days_ago": 9,
"issuer": "letsencrypt",
"valid_for_days": 90,
"rotation_count_90d": 3,
"cert_type": "DV"
}
}15 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.
It means that the SSL/TLS certificate presented by the domain failed critical validation checks. This can occur due to m…
It means the SSL/TLS certificate’s Common Name (CN) or Subject Alternative Name (SAN) does not match the accessed domain…
It means the SSL/TLS certificate of the domain includes verified organizational details that have been authenticated by …
It means the domain is using an SSL/TLS certificate that was generated and signed by the same entity, without verificati…
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