---
title: IsServer
description: Reports whether the built-in development server is running.
categories: []
keywords: []
params:
  functions_and_methods:
    returnType: bool
    signatures: [SITE.IsServer]
expiryDate: 2025-10-30 # deprecated 2023-10-30 in v0.120.0
---

{{< deprecated-in 0.120.0 >}}
Use [`hugo.IsServer`] instead.

[`hugo.IsServer`]: /functions/hugo/isserver/
{{< /deprecated-in >}}