Keith, your link is a website of 7 pages and around 460 images. Overall about 2MB a page. for page orient-diary-a, it renders to 2.6MB, nowhere near the 66MB you mention.
Are you storing your XAR file in the same webspace?

It was last updated in May. Just because files have an earlier November timestamp does not mean they are obsolete; if they have not changed since last published, you are not refreshed.
This page was actually published on 24 March 2022.

Xara sites can be transferred and hosted on almost anything.

A domain name does not buy you webspace, that is a separate contract.

Acorn