The SSL certificate auto-renewed — on the wrong server. By Saturday every visitor saw a browser warning, and the first you heard of it was the client on Monday.
DomainOps probes every endpoint on a schedule — liveness, response time, and a 7-day uptime heatmap — plus SSL certificate expiry alerts at 30, 14, 7 and 1 day, with on-call escalation so nothing slips through a weekend.
▶ Start free — endpoint & SSL monitoring included: https://domainops.io
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