Onboarding Instructions

Dear Registrar Partner,

We are pleased to announce the commencement of the onboarding process to the Registry Backend Platform for Radix Registry, operated by Tucows Registry Services (TRS).

As part of this process, we are providing you with the following:

• OT&E Access Package – including instructions, credentials, and certificates

• CSR Submission Guidelines – mandatory for enabling production access

Please review these materials carefully and complete the required steps to ensure a smooth transition.

Below are the details to connect to the OT&E platform:

Your OT&E credentials, along with the client private key and certificates, have been shared and are temporarily available at the following location:

 Registrar Name: If registrar name is missing please contact support at trs-support@tucows.com.

Share URL: If link is missing please contact support at trs-support@tucows.com.

At this location, you will find two OT&E certificate bundles, which include:

• CA Root Certificate – used to sign all certificates for the Tucows Registry SRS platform (EPP)

• Intermediate CA Certificate – used to verify the EPP OT&E server certificate

• OT&E Client Certificates and Private Keys – for both of your test accounts

You will need a properly configured X.509 certificate store to ensure your connection is accepted. It is mandatory that your EPP client presents the attached client certificate to our EPP server. While optional, we strongly recommend validating our server certificate using the CA certificates provided.

Technical details regarding EPP testing in the OT&E environment are available in the Registrar Console at: https://console.ote.radix.host/manage/documents

Please note: while we have provided certificates and private keys for OT&E access, Production access requires you to submit a CSR (Certificate Signing Request) so that we can generate your EPP client certificate. Kindly send your CSR ensuring the following:

• Key length: at least 2048 bits

• Common Name (CN): must match your login name

Please do not share your private keys with us under any circumstances. The CSR already contains all the necessary information required to securely generate your certificate. Your private key must remain confidential and should always be stored safely within your own systems.

If you encounter any issues with your OT&E credentials, need further assistance, or have questions, please contact our support team at trs-support@tucows.com.

We look forward to supporting you through a smooth and efficient onboarding process.

Sincerely,

Tucows Registry Services