1. Login to your domain hosts
2. Click Edit DNS zones
3. Click Add New Entry.
4. Choose the A record option, then click Continue.
5. Choose A record for a sub-level of example.com, enter blog (or whatever subdomain you prefer) as the “hostname/label”, then click Continue.
6. Enter the IP address shown in the middle of this Weebly support page, which will look something like 220.127.116.11.