An Account is the root object which owns other resources such as zones, load balancers and billing details.
Documentation for Cloudflare DNS records
Please use equivalent /accounts API endpoints. Account APIs provide a broader range of features and are backwards-compatible to organization APIs.
/accounts
The currently logged in/authenticated User
A Zone is a domain name along with its subdomains and other identities
A Zone setting changes how the Zone works in relation to caching, security, or other features of Cloudflare