Nowadays it’s hard to imagine a successful eCommerce store without advanced onsite navigation. Intuitive menus, smart internal linking, sophisticated onsite search — all that contributes to better customer shopping experience and, as a result, better conversion rate. Layered (aka filtered) navigation is also one of the most important site navigation components.   What is Layered/ Filtered Navigation? Imagine a large number of similar products with little differences in details. Manual browsing through store categories would be far too time-consuming and frustrating, which is unlikely to result in a purchase. To ease the pain of such a search, customers need a tool to surface the needed item only. And such a tool is layered navigation. Basically, layered or filtered navigation is usually located next to the main block of content and…