A computer implemented method, apparatus, and computer program code readily identifies authenticated content within webpage having user customizable content. A request to display a wiki page is received. Responsive to receiving the request, a wiki markup file with a wiki signature block is identified. The wiki markup file contains signed content and unsigned content. The signature block identifies the signed content within the wiki markup file. Signed content is verified and an edited wiki page is generated from the signed content and the unsigned content. Signed content is visibly distinguished from the unsigned content.