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I would like to crawl an Ethereum-like network completely and find out the list of their node IP addresses and clients they have, in a format like this:

Geth/v1.7.2-stable/linux-amd64/go1.8.3    10.24.173.89
Geth/v1.7.2-stable/darwin-amd64/go1.9.2   189.34.1.168

Something similar that happens in web, when a web crawler crawls the web and collects all the information about pages. Does something like this exist for Ethereum? I mean, some software I could download and run?

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  • Not a duplicate, but probably of use (incl. some issues with crawling): ethereum.stackexchange.com/questions/198/… (and, if you look at the testnet stats, I'm sure you'll see how off the practical numbers are)
    – lungj
    Oct 31, 2017 at 15:28
  • @lungj thanks a lot! these links would help to develop the code in javascript
    – Nulik
    Oct 31, 2017 at 19:24

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