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Check the Certificate Authority Authorization (CAA) records for oxford.ac.uk. See which certificate authorities are allowed to issue SSL/TLS certificates.
CAA (Certificate Authority Authorization) records specify which certificate authorities (CAs) are permitted to issue SSL/TLS certificates for oxford.ac.uk. Without CAA records, any CA can issue a certificate for oxford.ac.uk, increasing the risk of mis-issuance. By configuring CAA records, domain owners restrict certificate issuance to trusted CAs only, adding an important layer of defense against unauthorized certificate creation. Our checker shows all CAA records for oxford.ac.uk, including issue, issuewild, and iodef tags.