Backend is custom built written in C and assembly. Supports sharding and replication which is rack aware and data-center aware.
> can third party sites integrate your search service?
Yes of course.. that is the end goal.
Algolia is awesome.. but you end up paying a lot based on how many ways you sort / rank data. This operates with an on-the-fly ranking model and rank on any field in any direction. Also different ranking algorithms, extensibility with Lua and a lot more when I officially do a showhn