DNS seeds are still the de-facto bootstrap vector for most nodes, so the blind spot isn't just uptime—it's whether they're returning stale or clustered IPs that reduce network diversity. A monitor that diffs responses across seeds and flags when one starts serving the same narrow set of addrs would surface the real operational risk faster than raw reachability stats.
DNS seeds are still the de-facto bootstrap vector for most nodes, so the blind spot isn't just uptime—it's whether they're returning stale or clustered IPs that reduce network diversity. A monitor that diffs responses across seeds and flags when one starts serving the same narrow set of addrs would surface the real operational risk faster than raw reachability stats.