UPKira watches your websites, APIs, servers and scheduled cron jobs as often as every 30 seconds. Every failure is re-checked before an alert goes out, so you get fewer false alarms, and alerts arrive by email, Slack, Discord, Microsoft Teams or webhook, with recovery notices and exact downtime recorded. It also tracks response times, SSL certificate expiry, server resources and heartbeat pings. Hosted public status pages keep customers updated during incidents. The free plan includes 10 monitors and needs no credit card.