I couldn’t find a set-and-forget monitoring API, so I built one with automated webhook alerts
https://rapidapi.com/Gustavo1500/api/ssl-domain-monitor-api1
### Production-Grade SSL, Domain Expiry & DNS Monitoring
This API provides an automated, headless monitoring system that continuously tracks your public assets and alerts you via webhook before infrastructure issues affect your users.
#### Key Features:
* **Full Chain-of-Trust Validation:** We inspect the entire certificate chain (root and intermediate certificates) to detect hidden expiration issues.
* **Certificate Change & Substitution Detection:** Track SSL fingerprint and serial number shifts to catch unauthorized renewals, man-in-the-middle substitutions, or silent config changes instantly.
* **Domain Expiry Safeguard (WHOIS/RDAP):** Monitor registry records to prevent domains from expiring or being sniped by third parties.
* **Rogue Certificate Alerts (CT Logs):** Track public Certificate Transparency (CT) logs to find unexpected certificates issued for your registered domains.
* **DNS & Hijacking Protection:** Snapshot your DNS records (A, MX, TXT, NS) and get notified if any records are altered or hijacked.
* **Zero-Configuration Webhooks:** Integrate with Slack, Discord, or raw JSON payloads to deliver styled markdown alert cards to your communication channels instantly.
