Obtaining certificate chain for aulas.tecnograu.edu.pe, one moment while we download the aulas.tecnograu.edu.pe certificate and related intermediate certificates...

Revocation check via OCSP and CRL for aulas.tecnograu.edu.pe failed

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We could not load the certificate for aulas.tecnograu.edu.pe, it might not exist or we could not reach the server, complete the TLS handshake, etc.

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Revoked certificates can't and should not be trusted, these certificate will cause errors like "NET::ERR_CERT_REVOKED" in browsers and expose a security risk.