This page is «Hidden in Navigation» via Page Properties. The only way to get to this page is via the Page Properties page or the Teaserlist item in the list «Teaser list with single entries» on the page Teasers.
You should not see it in the navigation, nor in automatically generated teasers, nor must it appear in search results since it is «Hidden in Search» via Page Properties. Search for «hidd3n» to test if this page is hidden from the search funtionality.
Furthermore, the contact button (functional button) should not be displayed on this page. It is hidden in the Page Properties.