auto import from web URL

Thank you for this excellent plugin!
My question is about migration of 500+ recipes from old site that is written in HTML.
All recipes’ structured and complied with the standard recipe protocol and tags.
I have a stand alone app on my Win desktop and this program can import the recipes from the old site by just 1 click.
I’ve noticed that you have import feature from other plugins.
I wonder if there is a simple way to migrate from the old site to the new site using your plugin the same way I’m doing with a stand alone recipe program on a PC.

Thank you