This is a read-only backup copy of Wikitech. The live site can be found at wikitech.wikimedia.org
PoP stands for point of presence. Wikimedia uses at least two different kinds of PoPs: caching PoPs and network PoPs. [ 1 ] Caching PoPs generally correspond to Wikimedia caching data centers such as Esams , Ulsfo , Eqsin , Drmrs , and Magru .