By default, a Kapipal page is "private," meaning it is not visible to search engines. This is done via the the HTML Meta robots attribute. Only people who know the campaign's web address, or URL, can navigate to the Kapipal page. This protects your privacy. It is entirely up to you to spread the word and share the URL with your friends.
When you create a Kapipal, you can also choose to set it as "public." In this case, Google and other search engines will index the page and it may show up in their results. Choosing this option will attract even more people and potential contributors. Even if your campaign is set to "public," it is still important to share the campaign URL with friends.