ActiveCampaign vs Constant Contact

ActiveCampaign runs on 1,352 ranked sites (<0.1%); Constant Contact on 6,211 (0.1%).

By rank tier
TierActiveCampaignShareConstant ContactShare
Top 1,0000<0.1%0<0.1%
Top 10,0001<0.1%2<0.1%
Top 100,0008<0.1%39<0.1%
Top 1,000,00083<0.1%6220.1%
All ranked1,352<0.1%6,2110.1%