Google site verification

To verify your ownership of site in Google Webmaster tools:
1) sign in here https://www.google.com/webmasters/
2) add a site
3) in "verify your ownership" page, choose "Alternate methods" tab
4) you will find there a code like this:

<meta name="google-site-verification" content="your_code_here" />

5) copy and paste this code in your berta website "settings - Other settings" tab in field "Google site verification tag".