Mavention Insert Table of Contents is now available as an App for SharePoint.
On your public-facing website use the XML Sitemap and Robots.txt file to optimize your website for Internet search engines.
When using Device Channels on your website set the Vary: User-Agent response header to let Internet search engines know that different HTML is rendered to different browsers.
When working with Managed Navigation check the ‘Hide physical URLs from search’ checkbox for all pages.
If you are using Friendly URLs in your website you must use Content Search Web Part to build content aggregations.