# HttpKnownHeaderNames.XContentDuration

Kind: Field  
Namespace: `Sisk.Core.Http`  
Assembly: `Sisk.Core.dll`  
Source: https://docs.sisk-framework.org/api/Sisk.Core.Http.HttpKnownHeaderNames.XContentDuration.html

## XContentDuration {#Sisk_Core_Http_HttpKnownHeaderNames_XContentDuration}

The HTTP X-Content-Duration header.

Specifies the duration of the content in seconds, often used for media files.

```csharp
public const string XContentDuration = "X-Content-Duration"
```

### Field Value

[string](https://learn.microsoft.com/dotnet/api/system.string)