Preventing Views and Entries from being crawled by the Google Crawler/Bot

Sometimes your Views might contain sensitive data; therefore, you might want to prevent them from being indexed by Google and other search engines. To achieve that, you'll need to create a file on your WordPress root directory called  Robots.txt.

Then, write the following instructions inside this text file:

User-agent: *
Disallow: /view/*/entry/*
Disallow: /*/entry/*

Removing access to the View custom post type

Views are registered on WordPress as Custom Post Types, and they are accessible via the /view/ slug on the URL. It's possible to completely remove access to this custom post type by using the filter below:

add_filter( 'gravityview_direct_access', '__return_false' );

When using this filter, only Views embedded using the [gravityview] shortcode will show up/work. 

Related: Where to put code samples

Removing the View Custom Post Type from Yoast SEO

SEO plugins such as Yoast will automatically add all Custom Post Types (such as GravityView Views) to your website sitemap that is accessed by Google & other search engines. There's a way to exclude them from the sitemap explicitly.

In Yoast, for instance, this can be done by accessing the "SEO > Search Appearance" menu and then the Content Types tab: