What Does 99.999% Uptime Mean?
Calculate the exact allowed downtime budget for 99.999% availability, view industry standards, and copy ready-to-use SLA contract clauses.
99.999% Allowed Downtime Budget
0s
Allowed in 24h window
6s
Allowed in 7-day window
26s
Allowed in 30.4 days
5m 15s
Allowed in 365 days
Understanding Five Nines Availability (Carrier Grade) (99.999%)
A 99.999% availability target represents "Carrier Grade" reliability. It allows only 26 seconds of downtime in an entire month. Achieving this is exceptionally difficult and costly, requiring active-active global clustering, zero-downtime rolling database upgrades, and high network redundancy.
Industry Uptime Standard
Reserved for critical utility infrastructure, core banking services, telecommunication networks, and health systems.
Meet Your Uptime Commitments
Avoid costly SLA credit payouts. Setup real-time monitoring on Pingzo and get alerted on WhatsApp, Discord, or Telegram the second your website or API drops.