By default, all Google Plus profiles are accessible by search engines like Google, Bing, Yahoo search etc. By default your Google Plus profile appear in search engines results.
If you want, you can block all search engines including Google to index your Google Plus profile page. Here is how you can block search engines:
- Login in your Google Plus account and go to your profile page.
- Click Edit Profile button.
- Scroll to bottom of page and click Search visibility.
- Un-check Help others find my profile in search results and click save button.
Done!! Now search engines will not be able to index your Google Plus profile page.