Oh Dear vs domain-locker

Monitor your whole website, not just whether it's up

Oh Dear goes beyond basic uptime pings — it monitors SSL certificate expiry, broken links, DNS changes, scheduled tasks, and application health from one dashboard. Built by two developers from Antwerp as a hobby project in 2017, it's been self-funded and profitable ever since.

All-in-one tool for tracking your domain name portfolio

Track your domain name portfolio in one place. Monitor expiration dates, DNS records, SSL certificates, and registrar info. Never lose a domain again.