How many nodes?

[sdp]

Can anyone tell me where I can get reliable stats on the number of nodes on several crypto currencies?

This site reports that as of today there are 40_000 nodes running bitcoin but recently it was reported as 5_000.  Can someone explain why there are different?

https://bitinfocharts.com/comparison/nodes-btc-ltc-doge-dash.html

sdp

[achow101]

There are no reliable node counts because nodes can be spoofed and not every node owner will want to be connected to the node counting service. I know of several people who have said that they refuse connections to bitnodes.

[pedrog]

I don't know what that website considers a node, but that number is very different from what is reported in other websites.

Bitcoin nodes check these websites:

http://nodecounter.com/
https://bitnodes.21.co/

[sdp]

Those websites' counts agree with what I am hearing from the podcasts I listen to.  However, I would also like to see node could ts of altcoins.  It is something that we do not often hear about.  Thànk you for the links.

sdp