Audit certificato
rule.school SSL certificate check
SEO page with a cached certificate, TLS and chain-of-trust inspection result.
Certificato SSL
Validità
Valido
Giorni rimanenti
31
Stato catena
Catena attendibile
Emittente
CN=YR1,O=Let's Encrypt,C=US
Soggetto
CN=rule.school
Valido dal
6/13/2026 12:03:44 AM
Valido fino al
9/11/2026 12:03:43 AM
Versione TLS
TLS 1.2
Cifratura
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
Nomi alternativi del soggetto
rule.schoolwww.rule.schoolCatena certificati
Certificato 1 /leaf
rule.school
Issuer: CN=YR1,O=Let's Encrypt,C=US
Until: 9/11/2026 12:03:43 AMCA: falseSelf-signed: false
Certificato 2 /intermediate
YR1
Issuer: CN=Root YR,O=ISRG,C=US
Until: 9/2/2028 11:59:59 PMCA: trueSelf-signed: false
Certificato 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