Up-to-date content about SSL certificates, web security and technology
How does Public Key Infrastructure (PKI) work? Asymmetric encryption, digital signatures and certificate management.
Checking for revoked SSL certificates: CRL lists and OCSP protocol comparison.
How does SSL certificate chain work? The relationship between the root certificate, intermediate certificate and server certificate.
How do certificate authorities verify and issue SSL certificates? Root CA, Intermediate CA and chain of trust.
Detect fake certificates with Certificate Transparency (CT). CT log monitoring and security guide.
Mutual TLS (mTLS) authentication with client certificate. API security and enterprise access control.
Sign your PDF and Office documents with a digital document signing certificate. Legal validity and application guide.
Email authentication with DMARC, SPF and DKIM. Protection from phishing attacks and DNS configuration guide.
Show off your brand logo in your emails with BIMI and VMC certifications. Gmail and Outlook compatibility.
Server configuration steps and security optimization guide to get A+ grade in Qualys SSL Labs test.
Differences between SSL certificate file formats and format conversion commands with OpenSSL.
SSL/TLS configuration on your email server: Postfix SMTP and Dovecot IMAP/POP3 security settings.