diff --git a/Netch/Models/Server.cs b/Netch/Models/Server.cs
index 95542b0e..4e269ffc 100644
--- a/Netch/Models/Server.cs
+++ b/Netch/Models/Server.cs
@@ -11,36 +11,37 @@ namespace Netch.Models
         ///     延迟
         /// </summary>
         [JsonIgnore]
-        public int Delay = -1;
+        public int Delay { get; private set; } = -1;
 
         /// <summary>
         ///     组
         /// </summary>
-        public string Group = "None";
+        public string Group { get; set; } = "None";
 
         /// <summary>
         ///     地址
         /// </summary>
-        public string Hostname;
+        public string Hostname { get; set; }
 
         /// <summary>
         ///     端口
         /// </summary>
-        public ushort Port;
+        public ushort Port { get; set; }
 
         /// <summary>
         ///     倍率
         /// </summary>
-        public double Rate = 1.0;
+        public double Rate { get; } = 1.0;
+
         /// <summary>
         ///     备注
         /// </summary>
-        public string Remark;
+        public string Remark { get; set; }
 
         /// <summary>
         ///     代理类型
         /// </summary>
-        public string Type;
+        public virtual string Type { get; } = "WTF";
 
         public object Clone()
         {
diff --git a/Netch/Servers/Shadowsocks/Shadowsocks.cs b/Netch/Servers/Shadowsocks/Shadowsocks.cs
index f95af97a..bc023217 100644
--- a/Netch/Servers/Shadowsocks/Shadowsocks.cs
+++ b/Netch/Servers/Shadowsocks/Shadowsocks.cs
@@ -5,10 +5,7 @@ namespace Netch.Servers.Shadowsocks
 {
     public class Shadowsocks : Server
     {
-        public Shadowsocks()
-        {
-            Type = "SS";
-        }
+        public override string Type { get; } = "SS";
 
         /// <summary>
         ///     加密方式
diff --git a/Netch/Servers/ShadowsocksR/ShadowsocksR.cs b/Netch/Servers/ShadowsocksR/ShadowsocksR.cs
index a91c73e8..91d57ad0 100644
--- a/Netch/Servers/ShadowsocksR/ShadowsocksR.cs
+++ b/Netch/Servers/ShadowsocksR/ShadowsocksR.cs
@@ -5,10 +5,7 @@ namespace Netch.Servers.ShadowsocksR
 {
     public class ShadowsocksR : Server
     {
-        public ShadowsocksR()
-        {
-            Type = "SSR";
-        }
+        public override string Type { get; } = "SSR";
 
         /// <summary>
         ///     加密方式
diff --git a/Netch/Servers/Socks5/Socks5.cs b/Netch/Servers/Socks5/Socks5.cs
index d051cca5..2c97729c 100644
--- a/Netch/Servers/Socks5/Socks5.cs
+++ b/Netch/Servers/Socks5/Socks5.cs
@@ -14,10 +14,7 @@ namespace Netch.Servers.Socks5
         /// </summary>
         public string Username;
 
-        public Socks5()
-        {
-            Type = "Socks5";
-        }
+        public override string Type { get; } = "Socks5";
 
         public bool Auth()
         {
diff --git a/Netch/Servers/Trojan/Trojan.cs b/Netch/Servers/Trojan/Trojan.cs
index ab82737e..80994bcc 100644
--- a/Netch/Servers/Trojan/Trojan.cs
+++ b/Netch/Servers/Trojan/Trojan.cs
@@ -4,10 +4,7 @@ namespace Netch.Servers.Trojan
 {
     public class Trojan : Server
     {
-        public Trojan()
-        {
-            Type = "Trojan";
-        }
+        public override string Type { get; } = "Trojan";
 
         /// <summary>
         ///     密码
diff --git a/Netch/Servers/VLESS/VLESS.cs b/Netch/Servers/VLESS/VLESS.cs
index 910fb842..4b6b0fa6 100644
--- a/Netch/Servers/VLESS/VLESS.cs
+++ b/Netch/Servers/VLESS/VLESS.cs
@@ -5,10 +5,7 @@ namespace Netch.Servers.VLESS
 {
     public class VLESS : VMess.VMess
     {
-        public VLESS()
-        {
-            Type = "VLESS";
-        }
+        public override string Type { get; } = "VLESS";
 
         /// <summary>
         ///     加密方式
diff --git a/Netch/Servers/VMess/VMess.cs b/Netch/Servers/VMess/VMess.cs
index ad28a44e..949c08fd 100644
--- a/Netch/Servers/VMess/VMess.cs
+++ b/Netch/Servers/VMess/VMess.cs
@@ -7,10 +7,7 @@ namespace Netch.Servers.VMess
     {
         private string _tlsSecureType = VMessGlobal.TLSSecure[0];
 
-        public VMess()
-        {
-            Type = "VMess";
-        }
+        public override string Type { get; } = "VMess";
 
         /// <summary>
         ///     用户 ID