# HttpHeaderCollection.Age

Kind: Property  
Namespace: `Sisk.Core.Entity`  
Assembly: `Sisk.Core.dll`  
Source: https://docs.sisk-framework.org/api/Sisk.Core.Entity.HttpHeaderCollection.Age.html

## Age {#Sisk_Core_Entity_HttpHeaderCollection_Age}

Gets or sets the value of the HTTP Age header.

Indicates the age of the object in a cache, helping clients understand how fresh the cached response is.

```csharp
public string? Age { get; set; }
```

### Property Value

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