best practices
Working with Managed Properties in Search-driven publishing scenarios
SharePoint 2013 does great job configuring things for you in search-driven publishing scenarios but there are a few things you should keep in mind to save yourself trouble.
WCM tip #27: Use XML Sitemap and Robots.txt
On your public-facing website use the XML Sitemap and Robots.txt file to optimize your website for Internet search engines.
WCM tip #26: Disallow Master Page override
When building public-facing websites with SharePoint 2013 you should disallow anonymous users from overriding the Master Page on your website.
WCM tip #23: Use the Vary: User-Agent response header when using Device Channels
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.
WCM tip #22: Content Search Web Part publishes user account names
When building content aggregations with users’ information Content Search Web Part publishes account names in page source.