Glossary

What Is Uptime?

Uptime is the percentage of time a service is operational and accessible. A 99.9% uptime means the service is down for no more than 8.76 hours per year. For domain forwarding, uptime determines how reliably visitors are redirected.

Why It Matters

If your redirect service is down, every visitor to your forwarded domain hits a dead end. For domains used in marketing campaigns, vanity URLs, or brand migrations, even minutes of downtime means lost visitors and lost revenue.

Uptime Percentages Explained

UptimeDowntime/YearDowntime/MonthDowntime/Week
99%3.65 days7.31 hours1.68 hours
99.9%8.76 hours43.83 minutes10.08 minutes
99.99%52.6 minutes4.38 minutes1.01 minutes
99.999%5.26 minutes26.3 seconds6.05 seconds

What Causes Downtime in Forwarding

CauseImpactMitigation
Server failureAll redirects on that server stopRedundancy / CDN
SSL certificate expirationHTTPS redirects failAuto-renewal (Let’s Encrypt)
DNS issuesDomain doesn’t resolveMultiple nameservers
DDoS attackService overwhelmedTraffic filtering
Network outageConnectivity lostMultiple edge locations

How Domain Forward Handles This

Domain Forward achieves 99.9% uptime through:

  • Global edge network — redundant nodes worldwide
  • Automatic failover — traffic reroutes if a node fails
  • Auto-renewal of SSL certificates — no certificate-related outages
  • Monitored infrastructure — issues detected and resolved proactively

Related Terms

Related Features

Frequently
asked questions

Domain Forward maintains 99.9% uptime for redirect services. Our global edge network provides redundancy — if one node goes down, traffic is automatically routed to the next nearest node.

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