Hi-
I have triad our demo page and it couldn’t find WP.
http://2ip.ru/cms/?url=http%3A%2F%2Fhide-my-wp.wpwave.com
Despite configuration, we do not allow 2ipru to do a lot of process on HMWP installed websites.
I have only two guesses:
1. They parse source code to find wordpress related strings (e.g. woocommerce)
2. You used it before activating HMWP and your data is cached.
In first case, I suggest deactivating famous WP plugins and trying again (take a backup from their settings if necessary.
PS:
Hopefully, they don’t use cache which make testing result unreliable!