Two disclaimers, so far the best I have ever seen.

“This is a free service provided for the Internet community.
It has not been endorsed by The Church.
If you have any doubts about using this service you should consult your priest.

We, absolution-online, disclaim everything we may legally disclaim under the laws of the USA, UK, EEC and all other nations.
We make no claims as to the effectiveness of an online confession, rosary or anything else on this site.”.
(from absolution-online.com)

“Do you have a disclaimer statement?

Yes. You are 100% responsible for your own actions.
Using this site, visiting a link, downloading a program, in short, living, is done entirely at your own risk (and joy).”.
(from Tinyapps.org)