diff --git a/FastGithub.Core/DomainMatch.cs b/FastGithub.Core/DomainMatch.cs
index 9ec1928..f5fc0d9 100644
--- a/FastGithub.Core/DomainMatch.cs
+++ b/FastGithub.Core/DomainMatch.cs
@@ -5,6 +5,7 @@ namespace FastGithub
 {
     /// <summary>
     /// 域名匹配
+    /// *表示除.之外任意0到多个字符
     /// </summary>
     public class DomainMatch : IComparable<DomainMatch>
     {
@@ -18,7 +19,7 @@ namespace FastGithub
         public DomainMatch(string domainPattern)
         {
             this.domainPattern = domainPattern;
-            var regexPattern = Regex.Escape(domainPattern).Replace(@"\*", ".*");
+            var regexPattern = Regex.Escape(domainPattern).Replace(@"\*", @"[^\.]*");
             this.regex = new Regex($"^{regexPattern}$", RegexOptions.IgnoreCase);
         }
 
diff --git a/FastGithub/appsettings.json b/FastGithub/appsettings.json
index ecf9c65..890ef88 100644
--- a/FastGithub/appsettings.json
+++ b/FastGithub/appsettings.json
@@ -8,7 +8,7 @@
       "IPAddress": "114.114.114.114",
       "Port": 53
     },
-    "DomainConfigs": { // 域名的*表示0到多个任意字符    
+    "DomainConfigs": { // 域名的*表示除.之外0到多个任意字符    
       "github.com": {
         "TlsSni": false, // 指示tls握手时是否发送SNI
         "TlsSniPattern": null, // SNI表达式，@domain变量表示取域名值 @ipadress变量表示取ip @random变量表示取随机值，其它字符保留不替换