On public-facing websites using cross-site publishing use the Catalog Item Rank Model rather than the Default Search Model to get more relevant search results.
When resetting List’s permissions anonymous access to the catalog is removed as well.
When publishing lists other than the standard Product Catalog list as catalog, map the Crawled Property linked to the Site Column representing the unique identifier of each catalog item to the UsageAnalyticsId Managed Property.
Managed Properties linked to Site Columns used as URL fields in catalog should have Complete Matching enabled for the catalog content to be retrieved properly.
When using the new Search Engines Optimization features provided with SharePoint 2013 the browser title for the particular page will replace all contents of the PageTitlePlaceHolder Content Place Holder. This is important to know particularly when building hierarchical titles.