---
title: server.pop
summary: null
url: https://www.fastly.com/documentation/reference/vcl/variables/server/server-pop
---

**Type:** STRING  
**Access:** read-only

**Available in:** 

An identifier representing one of [Fastly's POP locations](https://www.fastly.com/documentation/guides/concepts/pop/).
This is the POP where the VCL code is currently running.

Our documentation on [Points of presence](https://www.fastly.com/documentation/guides/concepts/pop/)
explains the relationship betweens POPs and _sites_,
and how POPs are named with [IATA airport codes](https://en.wikipedia.org/wiki/IATA_airport_code).

We recommend using `server.pop` when referring to a POP for location-specific use cases,
and [the Geolocation variables](https://www.fastly.com/documentation/reference/vcl/variables/geolocation/) when referring to
geographical location based on an IP address.