Network latency can have a considerable impact on the speed of a search engine. This is why we have launched our Distributed Search Network (DSN) to overcome this.
DSN lets you automatically duplicate your search engine and data in multiple locations across the world. This is a complete copy of the search engine with all data, not just a cache. When your users perform a search, their queries reach the closest data center, significantly reducing the latency of the request. For this feature to work, you need to have a front-end implementation. You can use one of our InstantSearch UI libraries to ease the implementation.