Learn

Deep dives into the protocols and standards DomainCare monitors. Useful whether you're troubleshooting an alert or building domain hygiene from scratch.

Email authentication

• What is DMARC? — Policy enforcement for email spoofing.
• SPF vs DKIM vs DMARC — How the three protocols work together.
• How to set up an SPF record — Step-by-step setup guide.
• SPF: too many lookups — Diagnosing and fixing the 10-lookup limit.
• DMARC quarantine vs reject — Choosing the right enforcement policy.
• What is BIMI? — Brand indicators for authenticated messages.

SSL & certificates

• SSL certificate expired — What happens and how to fix it.
• SSL certificate types compared — DV, OV, EV, and wildcard.
• SSL monitoring — Why automated certificate monitoring matters.

Domain management

• Domain expiry explained — Registration lifecycle and grace periods.
• Domain expired: what to do — Recovery steps after expiration.
• Domain hijacking: how to prevent — Security best practices.
• WHOIS expiry monitoring — Tracking registration status via RDAP/WHOIS.