I made a web app with React, everything working fine. I deployed with heroku and used a custom domain. But the thing is how do i make to appear it on google search? Like if you put facebook, you have the link for the webpage in the search results. I do not want to lose the dynamic changes of the hmtl that react offers.
Sometimes it takes time for google to search a site. A XML site-map always helps googles crawlers and makes it more accesible for them. If your site has some time already you can ask for it to be indexed by contacting google.