1. A computer-implemented method for displaying a link to a site addressable by an identifier, comprising: (a) in response to receipt of a message with the link, displaying the link to the site as deactivated and garbled to prevent copying and pasting the identifier associated with the link into a browser window address field; (b) after the link is displayed as deactivated and garbled, determining a content type for the site; (c) displaying, with the deactivated and garbled link, an affordance indicating that the link is being scanned; (d) determining appropriateness of the site based on the content type determined in (b); and once the site is determined to be appropriate in (d): (e) activating the link to enable a user to navigate to the site using the link; and (f) ungarbling the link.