Domain Health Check

One pass over everything that silently kills a domain: expiry, DNS, redirects, DNSSEC. No signup required.

Prerequisites

• dig, whois, curl (all preinstalled on macOS and most Linux)

Trigger

• "Run a domain health check on example.com"
• "When does my domain registration expire?"
• "Is http redirecting to https properly?"
• "Check DNS records for example.com"

Workflow

Set DOMAIN to the apex domain. Every command is read-only.