Configure

Configure the domain to be used to access the file share and the directory where it will be hosted using Tramp.

(setq org-share-to-web-domain "")
(setq org-share-to-web-directory "")

Example.

(setq org-share-to-web-domain "https://mydomain.com/")
(setq org-share-to-web-directory "/ssh:debian@mydomain.com:~/www/")