While you can create an unlimited number of pages to import into your Wordpress websites, or export as many .html files as you wish, the amount of domains you can connect your pages with depends on your level of access.
iGloo Basic allows you to integrate with 1 domain,
while iGloo Premium allows you to integrate with up to 20 domains.
Remember you can create multiple tabs within each domain. Read more about this here: https://support.sambakkerconsulting.com/hc/en-us/articles/115005326243-Extra-License-for-Subdomain
...and if you wish to purchase the ability to connect with more domains or subdomains, visit this page: http://iglooapp.com/20-domains