A CNAME record is a subdomain of a canonical domain you own, and which you can use to point to another domain, like your video site URL. Since the CNAME record is hosted by a 3rd party, you can create a URL like "https://videos.mysite.com," and use it instead of the default video site URL, which looks like "https://mysite.vids.io".
To create a CNAME record, you'll need to navigate to your domain hosting provider's website. This is usually a company like GoDaddy or Blue Host. Once you are logged into your domain hosting account, find the option to Manage Your DNS Records, or to Create or Edit CNAME Records. Create a CNAME record and point it to your SproutVideo subdomain. The exact steps will vary from one provider to another, but those are the basic steps. Please note that it may take 24-48 hours for a new CNAME record to become available online.
Once you are finished creating your CNAME record, log into your SproutVideo account. Hover your cursor over "Site" at the top of the page, and select "Settings". Enter the CNAME record in the corresponding field called "CNAME" and click "Save Settings" at the bottom of the page. We will automatically test your new URL to make sure that it is configured correctly. Contact support if an error message appears.