Login to Bigrock

Click on the domain to be setup (example.com)

Now you can see all records here

Click on CNAME Records tab and then click Add CNAME Record button

Click on CNAME Records tab and then click Add CNAME Record button

This opens up the form to add CNAME record

Enter Host Name (www.example.com) and Value (sites.teachmore.com).

Then click Add Record button

After adding the record you can see is as the following

Add A record

In the domain manager/control panel, Scroll to the Domain Forwarding section and click Manage Domain Forwarding

Set Sub-domain prefix and Destination URL and save

You can see added A record DNS manager

Create custom domain entry on Teachmore dashboard under Settings → Domains

NakedSSL setup

Click on get it now button on nakedssl.com and then register yourself

After email account confirmation you should see this screen

Click Add domain

Remove forwarding, so it will remove the old A record and add new one

(screenshot)

Edit A record pointing to IP address provided by NakedSSL

Now click DNS updated on your NakedSSL dashboard

Check DNS now

Once you see the creation in progress message, wait for 5 minutes and refresh the screen.