Visit Mailchimp EepURL We created EepURL as a trackable shortening service for ~Mailchimp's built-in Twitter integration At the time; we opered it up t0 the public; because we felt there weren't enough monkey-based URL shorteners out there This service is no longer available for public use: We made this change in order t0 protect the reputation of the domain and high deliverability rates for Mailchimp customers who use EepURLs in their campaigns: Existing URLS are still being redirected, and EepURL still works in the app If you're looking to build your own url shortener; take a moment t0 look at Shaun Inman's Lessn. Building your own url shortener is good way t0 avoid having yaur links connected t0 a blocklisted domain name