# Server Settings

You can choose the Web server by clicking the active server name on the ribbon.

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Currently the following default options are available:

* [buildingtransparency.org](https://buildingtransparency.org/)
* [amazon.buildingtransparency.org](https://amazon.buildingtransparency.org/)
* [disney.buildingtransparency.org](https://disney.buildingtransparency.org/)

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If you like, you may add a custom server to the list by clicking the **Add Server...** button.

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Upon clicking it, the corresponding dialog will appear where you may enter the server address. The **https\://** prefix could be omitted.

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Currently only custom servers from the following domains are allowed:

* **c-change-labs.com**
* **buildingtransparency.org**
* **enterprisetransparency.com**

After clicking the **Add Server** button, **bimCAT** will try to connect to the server. If it fails, the corresponding error message will be displayed.

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Upon success, the dialog will be closed and the new server will appear in the list.

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You may delete a custom server by clicking the ![](https://979736188-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FnnfiqwqMJpMWTZIHDlMz%2Fuploads%2Fgit-blob-4301ef81d644b2a99e50da6d92d9026a7dc99e0a%2Fimage%20\(4\)%20\(1\).png?alt=media) button next to its name in the list. Deleting the default servers is not allowed.

The chosen server is displayed on the ribbon next to its icon.

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If you change the server while being logged in, BIM Climate Action Tool (bimCAT) will automatically log you out.