The DigiByte Node Crawler uses standard Bitcoin protocols to traverse blockchain networks. You can compare your favorite Bitcoin based blockchains to see their relative size, which is important to consider along with the context of the project.
Blockchains that can be crawled include:
DigiByte
Bitcoin
Bitcoin Diamond
Bitcoin Gold
Blocknet
Dash
Doge
Komodo
Litecoin
MUE
Phore
Pivx
Rapids
Stratis
Vertcoin
Zcash