Audit de certificat
rule.school SSL certificate check
SEO page with a cached certificate, TLS and chain-of-trust inspection result.
Certificat SSL
Validité
Valide
Jours restants
31
Statut de la chaîne
Chaîne de confiance
Émetteur
CN=YR1,O=Let's Encrypt,C=US
Sujet
CN=rule.school
Valide à partir de
6/13/2026 12:03:44 AM
Valide jusqu'au
9/11/2026 12:03:43 AM
Version TLS
TLS 1.2
Chiffrement
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
Noms alternatifs du sujet
rule.schoolwww.rule.schoolChaîne de certificats
Certificat 1 /leaf
rule.school
Issuer: CN=YR1,O=Let's Encrypt,C=US
Until: 9/11/2026 12:03:43 AMCA: falseSelf-signed: false
Certificat 2 /intermediate
YR1
Issuer: CN=Root YR,O=ISRG,C=US
Until: 9/2/2028 11:59:59 PMCA: trueSelf-signed: false
Certificat 3 /last-presented
Root YR
Issuer: CN=ISRG Root X1,O=Internet Security Research Group,C=US
Until: 9/2/2032 11:59:59 PMCA: trueSelf-signed: false