What are some alternatives?
When comparing Site Search 360 and Swiftype, you can also consider the following products
Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.
ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.
Swiftype Site Search - Swiftype Site Search helps to sell more, get the right answer to more people on the platform and surface relevant content for readers and followers.
Apache Solr - Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and...
Amazon CloudSearch - Amazon CloudSearch is a fully-managed service in the cloud that makes it easy to set up, manage, and scale a search solution for your website.
Ambar - Ambar is a fast, open-sources document search and management system with the automated crawling, instant full-text search and tagging.