Certificate marks are the logos visitors see on the public Trust Centre. They are separate from the certificate files you might upload as assets or hold in the document library.
Add a mark
Open Trust Centre, then Certificate marks. Add the mark with its name, logo, and, if you have one, a link to the public certificate or registry entry. Visitors use that link when you want them to check the certification themselves.
Show or hide a mark
Each mark is active or inactive. Active marks are counted on the overview and shown on the public page. Inactive marks stay in the list so you can turn them back on, but they are not presented as current.
Edit the name, logo, or link when the certification changes. Remove a mark only when you no longer want it on record.