I built this last night. Find out how many of your followers are actually active on twitter.
For me:
…..
How long does it take? Minutes?
Not that long. Mine took less than 5 mins.
Follower count: 106
Monthly Active count: 73
Monthly Active percentage: 68.9%
Weekly Active count: 63
Weekly Active percentage: 59.4%
From 316 followers. Seems about right.