---
title: See Current Root CA Certificates
slug: manage/see-current-root-ca-certificates
docTags: 
createdAt: 2025-03-11T06:58:09.588Z
---

Root CA certificates are used in all components of the BrightSign operating system. You can see what certificates your player is using through the [Diagnostic Web Server (DWS)](docId\:qXt4YHey7IEj_M9dH73wM). The steps below detail how to do this.

:::hint{type="warning"}
Local access (i.e., access over the local network) of the Diagnostic Web Server (DWS) is *disabled* by default as of BrightSignOS 9.0.218 (on the 9.0 branch) and BrightSignOS 9.1.75 (on the 9.1 branch). In BrightSignOS versions prior to these, local access to the DWS was enabled by default. To enable local access to the DWS, see [DWS: Local Access](docId\:IAFCHERlJfjDJTWTtKpk5).

Note that some specially configured players have the external microSD card port and USB storage disabled at the factory (SKU: SVC-internal-storage-only). For these players, local access to the DWS remains enabled by default.

Remote access (i.e., access over the internet) of the DWS remains available for all internet-connected players registered with BrightSign Cloud.
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Once the local access to the DWS has been enabled, the DWS can be accessed through the local network by entering the player's IP address into the address bar of your web browser.
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Add “/ca\_certificates” to the end of your player IP address. For example, `10.0.0.22/ca_certificates` where 10.0.0.22 is the player's IP address.
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Download (or “keep”) the file to your computer.
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Add an extension to the downloaded file (e.g., *ca\_certificates.pem*).
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Double-click on the file to see the list.

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