We'd want to have the unique title for all of your links, but we must be fair to those who are not computer savvy. Commonly used titles such as Email, Mobile, Address, Website, Office number, and so on that are simple to comprehend in a matter of seconds.
Do you want people to spend a lot of time pondering what's on your business card or just glance at it for a quick overview of what you can do and how to contact you?
Do you want to put a lot of pressure on visitors regarding download speeds, be concerned about the connection's security problems, and so on?