---
title: IsServer
description: Reports whether the built-in development server is running.
categories: []
keywords: []
action:
  related: []
  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 %}}
