A slashtag is an easy-to-create custom search engine. It is a tool used to filter search results and helps you to search only high quality sites, without spam or content farms. Slashtags contain a list of websites and when you search with a slashtag, you only search those sites. Some slashtags perform functions such as ordering the results by date.
For example, when you search on diabetes /health, you are searching a set of trusted sites such as nih.gov, cdc.gov, webmd.com, and more. Content farms and spam sites are banished entirely.
For more information about slashtags, check out our tutorial.