CathInfo was founded in 2006 A.D. to facilitate free and open discussion on many topics, share news, foster friendships, build support networks, and form a sense of community among English-speaking Traditional Catholics worldwide. Traditional Catholics are those who oppose many heresies, errors and anti-Catholic trends in the modern world. Traditional Catholics adhere to the Catholic Faith as it was believed and practiced before Vatican Council II, and that includes the Mass. Instead of the "New Order of Mass" promulgated by Pope Paul VI in 1969, they attend the Tridentine Mass which was used in the Catholic Church for many centuries until small changes began to be introduced in 1965.

Traditional Catholics consider the popular culture to be generally hostile to their beliefs and their way of life. So in the course of events, many Traditional Catholics become comfortable with an "I am right; everyone else is wrong" mentality. Unfortunately, this carries over into their dealings and discussions with other Traditional Catholics, even those with a higher dignity (e.g., priests and bishops) or education. Within the movement, some are quite vocal and opinionated, and there are many disagreements about various issues, including the status of the current Pope, the status of priests and bishops ordained after Vatican II, etc. They point out the prophecy, "Strike the shepherd, and the sheep will be dispersed."

So, acknowledging the reality concerning Catholics in the Traditional movement, as well as the great need these Catholics have for a forum that functions as the online equivalent of a parish hall, CathInfo has striven to allow free and unfettered discussion on every debatable topic. Anything contradicting the Catholic Faith or Catholic morality is deleted, but open discussion is allowed as much as possible. CathInfo strives to be a unifying force in the Traditional movement, bringing Traditional Catholics together as much as possible, and permitting a variety of opinions (within the bounds of the Catholic Faith) to peacefully co-exist on the forum.

CathInfo's philosophy can be summarized in the famous quote: "In necessariis unitas, in dubiis libertas, in omnibus caritas" which translates to, "In necessary things unity, in doubtful things liberty, in all things charity."

CathInfo was founded in August 2006, after another established forum began forbidding discussion on certain topics, including sedevacantism (the belief that the current Pope is not a legitimate pope). A number of members decided it was not good to arbitrarily forbid certain topics of discussion, and so they became the first members of CathInfo.

Over the past 10 years, CathInfo has been a refuge for truth-seekers, whistleblowers, and lovers of free speech all over the Catholic world.