You have so many features using this URL shortener. You also don't need to register to use all feature. Best is to configure your shurt URL with a passwort or set a limit how often it can be called. So you have a very good protection to it.
HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
shorturl.is - Make long url's short. Statistics included!
ActiveCampaign - Integrated email marketing, marketing automation, and small business CRM. Send beautiful newsletters, setup behavioral based automations, and benefit from sales automation.
Capsulink - Capsulink is a URL shortener that gives you the key tools you need to optimize your content and marketing strategies.
Pardot - Salesforce B2B marketing automation
ShrtFly - ShrtFly is one of the best URL shorteners, They offer Higher Payout Rates on Norway and United States Country.