Ease of setup and use makes for a powerful and lightweight monitoring option from a remote source. This means it can check your uptime from outside of your internal network. They send monthly uptime statistics reports, and an email if there is a reported outage. You can take that email and feed it into an on-call system such as PagerDuty to alert your team off-hours of site issues or outages. Review collected by and hosted on G2.com.

Nothing to dislike, it just works, and they have different subscription tiers for your needs. Everything from a free option (for personal site monitoring) to a full-blown stack is available. Review collected by and hosted on G2.com.