Nodes send a heartbeat every 30 seconds. Every 5 minutes ProofKit checks each node: it counts as online if its last heartbeat is less than 90 seconds old.
How it is computed
new = old × 0.95 + (up ? 5 : 0)Each check moves the figure 5% of the way toward 100 (online) or 0 (offline), so recent hours weigh most. One missed check takes uptime from 100% to 95%, and it takes about four hours of checks to climb back above 99.5%. A new node starts at 100%.
Why it matters
- A node that goes away interrupts your connection until your app reconnects or you switch.
- A node offline for 30 minutes has its routes expired: add the route again once it is back.
- Uptime is 30% of the health score.
Badges
Reliable: uptime of at least 99.5%.New: joined the network in the last 30 days.