VERDICT
Affordable server monitoring and alerting for people who run their own servers. - fivenines.io
Depends. Buy it if you self-manage servers and want a simple, affordable Nagios or PRTG replacement; public evidence is thin and confidence is low. Skip it if you need enterprise observability, verified reviews, or openly published security documentation.
Low. Based on 10 public sources; many Five Nines results cover an unrelated Nebraska MSP, not this monitoring tool.
Not disclosed
medium
A pricing-update thread exists, so pricing has changed before; verify current tiers
medium
Trustpilot shows content written by the company; treat those scores skeptically
medium
Cannot inspect the security page without creating an account
low
WHMCS resellers set their own retail price, so quoted prices vary
Value for money: 4/5
Rating
Not disclosed
Starting price
10
Sources
Analyzed
Not disclosed
No known vulnerabilities found in the sources reviewed.
Independent user feedback is scarce; the clearest community signal is a LowEndTalk thread calling it nice and affordable server monitoring.
“Nice and affordable server monitoring”
Compare Fivenines with each alternative.
Per-second server monitoring with a strong free tier
Fivenines vs NetdataWindows-based monitoring; free under 100 sensors
Battle-tested open-source classic with a clunkier interface
Free, self-hosted uptime monitoring for homelabs
Based on 10 public sources; many Five Nines results cover an unrelated Nebraska MSP, not this monitoring tool.
Affordable server monitoring for sysadmins and homelabs; modern Nagios/PRTG alternative, but independent reviews are thin.
Based on 10 public sources; many Five Nines results cover an unrelated Nebraska MSP, not this monitoring tool.
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