This proxy reads and redisplays, but does not alter the underlying page. For the completely linked experience, real (original) links are sacrificed in the proxied view.
Links are not pre-tested for validity. Many will be invalid or lead only to "site parking" pages. There will be much malformed HTML. Nonetheless, you are guaranteed to come up with some linked oddities.
If you liked this "service," try the Annotator, another fine In-Voice production.