Reachable NodesIndividual Bitcoin node IPs where a full P2P handshake succeeded in the last hour.
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Unreachable NodesNode IPs where TCP timed out, was refused, or the P2P handshake failed. Counted over the last hour.
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Nodes ProbedTotal unique IPs collected from all DNS seeds and actively probed this hour.
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last hour
Long-term NodesNodes reachable in ≥80% of probe cycles over the last 7 days — stable backbone of the network.
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≥80% uptime (7d)
DNS Seeds UpHow many of the 17 configured DNS seed hostnames resolved successfully in the last poll.
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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
| Seed | Network | DNS | Health | Reachable | Bootstrap | DNS ms | Last poll |
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Address quality & freshness
| Seed | Network | DNS / eligible | Uniqueness | Stale (7d) | Churn |
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