API Sisk.Core.Http HttpKnownHeaderNames Copy page Copy as Markdown View as Markdown Copy linkFieldHttpKnownHeaderNames.ExpiresNamespaceSisk.Core.HttpAssemblySisk.Core.dllExpires #The HTTP Expires header.Indicates the date and time after which the response is considered stale, helping clients manage caching.C# public const string Expires = "Expires"Field Value #string