two answers:
- To achieve Google indexing you need to create/update your sitemap. This is not done for Mendix apps. I have done this earlier for a Mendix app updating the site map for each link I created using a custom JAVA action. This module has been released after I implemented this myself, so no experience with THIS module: https://marketplace.mendix.com/link/component/116718
- Mendix isn't a website, so being crawlable by Google shouldn't be needed ;-)
Update
This very old blog post, still give you a decent idea how it works for Mendix. Note that at the time of wring page and microflow URL's weren't possible and thus custom deeplinks were created. Which is basically the same concept, though differently implemented. https://www.mxblog.eu/p/post/2533274790396705