Link to Yola's help center about verifying website
1. Login to your Yola account
2. Open your site editor in Yola
3. Click the Settings tab
4. Click Tracking
5. Insert the content only of the code provided to you into the Google Webmaster section and click "Save Changes"
example:
<meta name="google-site-verification" content="SOMESTRINGGOESHERE" />6. Save and Publish your site.