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Bitnodes is currently being developed to estimate the size of the Bitcoin network by finding all the reachable nodes in the network.

Supported by 21.co


Reachable nodes

Since 90 days ago

Nodes

Chart shows the number of reachable nodes during the last 90 days. Individual series can be enabled or disabled from the legend to view the chart for specific networks.

 1504312879: Crawler restarted: Enabled support for BIP144 tx deserialization (@d92af35104).

User Agents

Chart shows the distribution of reachable nodes across leading user agents. Series can be enabled or disabled from the legend to view the chart for specific user agents.


ASNs

Chart shows the distribution of reachable nodes across leading ASNs. Series can be enabled or disabled from the legend to view the chart for specific ASNs.


Countries

Chart shows the distribution of reachable nodes across leading countries. Series can be enabled or disabled from the legend to view the chart for specific countries.


Block Heights

Chart shows the distribution of reachable nodes across leading block heights. Series can be enabled or disabled from the legend to view the chart for specific groups of block heights. Index 0 denotes nodes with the consensus block height. Index 1 denotes nodes with 1 block behind the consensus block height. Consensus block height is determined based on the most common block height among the reachable nodes in the network.


Transactions Propagation

Chart shows propagation time in milliseconds for transactions during the last 90 days. Tx 50% denotes 50% of the inv messages for all transactions in the daily blocks were observed within the given time from the first 1000 nodes. Timestamp for an inv message is based on the time when the kernel first saw the packet containing the inv message. The aggregated data does not include inv messages that were observed 1 hour after the first inv message for the same transaction.


Blocks Propagation

Chart shows propagation time in milliseconds for blocks during the last 90 days. Block 50% denotes 50% of the inv messages for the daily blocks were observed within the given time from the first 1000 nodes. Timestamp for an inv message is based on the time when the kernel first saw the packet containing the inv message. The aggregated data does not include inv messages that were observed 1 hour after the first inv message for the same block.


Join the Network

Be part of the Bitcoin network by running a Bitcoin full node, e.g. Bitcoin Classic or Bitcoin Core.

Use this tool to check if your Bitcoin client is currently accepting incoming connections from other nodes.