What 99.95% Uptime Actually Means for Your Business

Uptime percentages are a common way to compare hosting providers, but the numbers feel abstract until you convert them. 99.9% uptime sounds great. It allows for about 8.7 hours of downtime per year. For a business generating revenue online, 8 hours offline is a significant event.

99.95% is meaningfully better — it limits downtime to roughly 4.4 hours per year. The jump from 99.9% to 99.95% cuts allowable downtime in half. At Northstar VPS, 99.95% is our standard SLA across all plans.

The number that matters most is not average uptime — it is when downtime happens. Downtime during off-peak hours at 4am costs far less than downtime during your peak usage window on a Tuesday afternoon. Infrastructure monitoring and rapid incident response reduce the probability of downtime during high-stakes periods.

Revenue impact depends on your business model. A B2B SaaS charging $299/month per seat has a very different downtime cost calculation than an e-commerce store generating $50,000 per hour during a flash sale. The right question is not just what the SLA number is, but how your provider responds when something goes wrong.

At Northstar VPS, our monitoring runs checks every 60 seconds from multiple external locations. When a server becomes unreachable, our on-call team is alerted immediately — before your users notice and before you have to contact support to find out what happened.

The other half of uptime is reliability during normal operation — consistent response times, no CPU throttling, no noisy-neighbour effects. Our managed infrastructure is configured to deliver consistent performance under load, not just pass a synthetic uptime check.

Uptime SLAs also cover the commitment made when something does fail. Our SLA includes service credits for downtime that exceeds our commitments. The goal is never to need them — but having a contractual commitment means our incentives are aligned with yours.