Auditoria de certificado
rule.school SSL certificate check
SEO page with a cached certificate, TLS and chain-of-trust inspection result.
Certificado SSL
Validade
Válido
Dias restantes
31
Status da cadeia
Cadeia confiável
Emissor
CN=YR1,O=Let's Encrypt,C=US
Assunto
CN=rule.school
Válido a partir de
6/13/2026 12:03:44 AM
Válido até
9/11/2026 12:03:43 AM
Versão TLS
TLS 1.2
Cifra
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
Nomes alternativos do sujeito
rule.schoolwww.rule.schoolCadeia de certificados
Certificado 1 /leaf
rule.school
Issuer: CN=YR1,O=Let's Encrypt,C=US
Until: 9/11/2026 12:03:43 AMCA: falseSelf-signed: false
Certificado 2 /intermediate
YR1
Issuer: CN=Root YR,O=ISRG,C=US
Until: 9/2/2028 11:59:59 PMCA: trueSelf-signed: false
Certificado 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