Bitcoin DNS Seed Monitor

Live · refreshes every 60s
Reachable NodesiIndividual Bitcoin node IPs where a full P2P handshake succeeded in the last hour.
Unreachable NodesiNode IPs where TCP timed out, was refused, or the P2P handshake failed. Counted over the last hour.
Nodes ProbediTotal unique IPs collected from all DNS seeds and actively probed this hour.
last hour
Long-term NodesiNodes reachable in ≥80% of probe cycles over the last 7 days — stable backbone of the network.
≥80% uptime (7d)
DNS Seeds UpiHow many of the 17 configured DNS seed hostnames resolved successfully in the last poll.

Reachability over time (24h)

Node versions (snapshot)

Network types

Node capabilities

Version adoption (7d)

Long-term nodes — reachable in ≥80% of cycles (7 days)

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Seed health — click a row to see history

Availability measures DNS and peer access. Address quality measures the returned set: DNS / eligible is maximum DNS answer size / average eligible peers over 24h; stale is the percentage of distinct addresses returned in 7d that were never reachable; churn is new / retained / removed between the latest successful responses.

Availability & bootstrap

SeedNetworkDNS HealthReachableBootstrap DNS msLast poll

Address quality & freshness

SeedNetworkDNS / eligible UniquenessStale (7d)Churn