Reachable nodes
2,026
recent handshakes
Bitcoin peer-to-peer network research
Bitcoin Node Atlas
A public stats site for reachable Bitcoin nodes, advertised unreachable nodes, and observed addresses from a conservative crawler's vantage point.
Approximate network view |Last crawl:
Advertised unreachable nodes
1,668
observed, not reachable
Observed addresses
4,236
crawler vantage point
IPv4 nodes
2,011
reachable clearnet
IPv6 nodes
15
where observed
Tor nodes
0
not mapped
Last crawl time
latest local data
Approximate geographic distribution
View aggregate map points for observed nodes with optional IP geolocation. Coordinates are approximate and may be blank until GeoIP enrichment is configured.
Methodology
Three metrics, conservative by design
Reachable nodes
Addresses that completed a recent Bitcoin P2P version/verack handshake with this crawler.
Advertised unreachable nodes
Addresses observed from peer advertisements that were not reachable from this crawler when checked.
Observed addresses
Addresses learned from DNS seeds, peer advertisements, or future crawl sources. This is not the same as reachable node count.
Crawler ethics
Low-volume checks from one vantage point
The crawler uses bounded timeouts and low concurrency, and it only checks standard Bitcoin peer reachability. Results depend on routing, firewalls, peer limits, and temporary network conditions, so the Atlas estimates the observed public network without treating the estimate as exhaustive.