The CPS landing page lets you search for existing certificates.

How to

1. Enter a numeric or non-numeric value in the filter at the top corner of the CPS page.
2. Choose whether you want to search the common name, SAN field, or Slot (for numeric values only).
3. Press Enter.

All the certificates that contain the text you entered in the field you chose appear in each tab below.

The Slot field only appears if you enter a number. If you do not select common name, SAN, or Slot, the search looks in all those fields and finds certificates containing the text or numbers you entered. You can see the number results for your filter in parentheses next to the tab.