The distributed link tracking service also attempts to maintain links in the preceding situations even when they do not occur within a domain, that is, they are cross domain or within a workgroup. On Twitter and some instant-messaging services, there is a limit to the number of characters a message can carry – however, Twitter now shortens links automatically using its own URL shortening service, so there is no need to use a separate URL shortening service just to shorten URLs in a tweet. More » Mcaf.ee McAfee is a leading computer and web security company that provides antivirus, encryption, firewall, email security and much more to its customers. See if you are using Classic Analytics (ga.js) or Universal Analytics (analytics.js).