If you are using your own custom domain for your OSI Affiliate software account like partners.yourdomain.com, you can use the Cloudflare DNS Free plan to make your custom domain secure.

NOTE: This does not apply to domains registered with Wix.

Once you sign up for your Cloudflare account, follow the steps below to make your custom domain secure.

STEP 1: Log in to your Cloudflare account portal here:

https://dash.cloudflare.com/login 

STEP 2: Once you sign up a Cloudflare account and login to your account, you will need to add your domain to Cloudflare and update your domain name server addresses by following their instructions here. 

STEP 3: After you add your site by following the instructions shown in the previous step, you will need to go into your site profile and click on the DNS tab shown here:

STEP 4: Click the Add Record button shown here:

STEP 5: Select CNAME from the Type dropdown and enter the name of your subdomain and your OSI Affiliate account URL.