Blackfire can be used to profile and test the performance of your Magento Cloud application in development, on the integration platform of Magento Cloud, and on Staging and Production servers.
Please make sure to follow our installation documentation.
Note that for installing Blackfire in production and staging, you will need to ask Magento Cloud's support team to activate Blackfire in those environments.
⚠️ If your Magento Cloud project was provisioned before April 11th, 2020, and that a Blackfire account has been automatically created at the same time, don't hesitate to reach out to us for further help!