This is a non-conspicuous web part that is only visible when triggered by the user. So other than installing the web part on the master page, there is nothing else that is needed. You don't need to enter any special codes in your links or anything like that, just create the pages and content as you do normally and the rest will happen automatically.
A user clicking an external link to the current site collection will be prompted to continue or close. At this point the background becomes shaded and is disabled. The user must either click the name of the site to continue or close to cancel the request and continue browsing the current site.
All sites visited that are outside of the current site collection are opened in a new browser window or tab.
Tutorials and Guides
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