How to check if the segwit2x fork was adopted?

How to check if the segwit2x fork was adopted?

SegWit2x was scheduled to happen today at BTC block 501451 (http://b2x-segwit.io).

How do I check if the fork was adopted and by whom?

Electrum wallet docs (http://ift.tt/2o4LYxE) say the app will detect a blockchain split, but mine didn't notice anything. Does this means the fork wasn't successful?

http://ift.tt/2lpYQyB

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