Absolutely. The Weebly editor provides Member Logins for specific pages you don't want the public to see. There are several ways to set this up check out this article in the Weebly Help Center:
- Limiting Page Visibility to Members - https://hc.weebly.com/hc/en-us/articles/203859386-Membership-Limiting-Page-Visibility-to-Members
You can also find other articles by searching for Member in the Weebly Help Center - help.weebly.com