Add the X-Robots-Tag: noindex, nofollow HTTP header to all .shtml responses.
When you type inurl "view index.shtml" motell into Google (or a more OSINT-friendly search engine like Bing or Yandex), you are effectively asking the search engine to show you all the publicly accessible file folders on motel websites that lack a default homepage.
, which acts as its "home" on the internet. Finding this address is often the first step in accessing a remote feed. Security & Privacy Implications