diff --git a/src/main/java/com/gxwebsoft/common/core/config/ConfigProperties.java b/src/main/java/com/gxwebsoft/common/core/config/ConfigProperties.java
index c8afd9c..0664226 100644
--- a/src/main/java/com/gxwebsoft/common/core/config/ConfigProperties.java
+++ b/src/main/java/com/gxwebsoft/common/core/config/ConfigProperties.java
@@ -97,6 +97,11 @@ public class ConfigProperties {
    */
   private String websopyUrl;
 
+  /**
+   * 内部服务调用密钥（调用 websopy 等内部接口时使用）
+   */
+  private String internalKey;
+
   /**
    * 微信扫码H5页面访问地址（用于微信扫码登录跳转）
    */
diff --git a/src/main/java/com/gxwebsoft/common/system/controller/MainController.java b/src/main/java/com/gxwebsoft/common/system/controller/MainController.java
index a7df4fa..8b9565f 100644
--- a/src/main/java/com/gxwebsoft/common/system/controller/MainController.java
+++ b/src/main/java/com/gxwebsoft/common/system/controller/MainController.java
@@ -57,6 +57,7 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.transaction.annotation.Isolation;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.client.RestTemplate;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
@@ -69,6 +70,7 @@ import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.stream.Collectors;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.ThreadLocalRandom;
@@ -90,6 +92,8 @@ public class MainController extends BaseController {
   @Resource
   private ConfigProperties configProperties;
   @Resource
+  private RestTemplate restTemplate;
+  @Resource
   private UserService userService;
   @Resource
   private UserMapper userMapper;
@@ -1285,6 +1289,31 @@ public class MainController extends BaseController {
     return access_token;
   }
 
+  /**
+   * 向 websopy 初始化租户默认域名并标记为已生效
+   */
+  private void initDefaultDomain(Integer tenantId, String appCode) {
+    String websopyUrl = configProperties.getWebsopyUrl();
+    if (StrUtil.isBlank(websopyUrl)) {
+      return;
+    }
+    String prefix = "site";
+    String suffix = "sitelnk.cn";
+    if ("mp".equals(appCode)) {
+      prefix = "mp";
+      suffix = "shoplnk.cn";
+    } else if ("shop".equals(appCode)) {
+      prefix = "shop";
+      suffix = "shoplnk.cn";
+    }
+    String domain = prefix + "-" + tenantId + "." + suffix;
+    Map<String, Object> body = new HashMap<>();
+    body.put("tenantId", tenantId);
+    body.put("domain", domain);
+    body.put("internalKey", configProperties.getInternalKey());
+    restTemplate.postForObject(websopyUrl + "/api/app/user-sync/initDomain", body, String.class);
+  }
+
   @Operation(summary = "开发者短信验证码登录")
   @PostMapping("/loginByDeveloperSms")
   public ApiResult<LoginResult> loginByDeveloperSms(@RequestBody LoginParam param, HttpServletRequest request) {
@@ -1448,9 +1477,6 @@ public class MainController extends BaseController {
     userParam.setTemplateId(user.getTemplateId());
     userParam.setTenantId(addCompany.getTenantId());  // 使用新创建的租户ID
     final User adminByPhone = userService.getAdminByPhone(userParam);
-    // 注册即开通：标记该超管账号已安装(initialized)
-    adminByPhone.setInstalled(true);
-    userService.updateById(adminByPhone);
 
     // 设置过期时间
     Long tokenExpireTime = configProperties.getTokenExpireTime();
@@ -1632,9 +1658,14 @@ public class MainController extends BaseController {
       userParam1.setTemplateId(user.getTemplateId());
       userParam1.setTenantId(addCompany.getTenantId());  // 使用新创建的租户ID
       final User adminByPhone = userService.getAdminByPhone(userParam1);
-      // 注册即开通：标记该超管账号已安装(initialized)
-      adminByPhone.setInstalled(true);
-      userService.updateById(adminByPhone);
+
+      // 在 websopy 初始化默认域名（site-租户ID.sitelnk.cn）并标记为已生效
+      try {
+        initDefaultDomain(addCompany.getTenantId(), "site");
+      } catch (Exception e) {
+        log.error("注册后初始化默认域名失败: tenantId={}", addCompany.getTenantId(), e);
+        // 域名初始化失败不阻断注册流程
+      }
 
       // 设置过期时间
       Long tokenExpireTime = configProperties.getTokenExpireTime();
diff --git a/src/main/java/com/gxwebsoft/common/system/service/impl/TenantServiceImpl.java b/src/main/java/com/gxwebsoft/common/system/service/impl/TenantServiceImpl.java
index 7193d4b..efe09ae 100644
--- a/src/main/java/com/gxwebsoft/common/system/service/impl/TenantServiceImpl.java
+++ b/src/main/java/com/gxwebsoft/common/system/service/impl/TenantServiceImpl.java
@@ -146,6 +146,7 @@ import java.util.stream.Collectors;
         superAdmin.setPassword(userService.encodePassword(company.getPassword()));
       }
       superAdmin.setTenantId(company.getTid());
+      superAdmin.setInstalled(true);
       if(company.getTemplateId() != null){
         superAdmin.setTemplateId(company.getTemplateId());
       }
diff --git a/src/main/resources/application-prod.yml b/src/main/resources/application-prod.yml
index d194030..a1409f4 100644
--- a/src/main/resources/application-prod.yml
+++ b/src/main/resources/application-prod.yml
@@ -53,6 +53,9 @@ config:
   # websopy 服务地址（用于同步用户数据）
   websopyUrl: https://websopy-api.websoft.top
 
+  # 内部服务调用密钥（调用 websopy 等内部接口时使用，请务必与 websopy 端保持一致）
+  internal-key: ${INTERNAL_KEY:websopy-internal-2025}
+
 # 生产环境证书配置
 certificate:
   # 生产环境使用挂载卷模式
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 32fffd2..feef8aa 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -119,6 +119,9 @@ config:
   # websopy 服务地址（用于同步用户数据）
   websopyUrl: https://websopy-api.websoft.top
 
+  # 内部服务调用密钥（调用 websopy 等内部接口时使用，请务必与 websopy 端保持一致）
+  internal-key: ${INTERNAL_KEY:websopy-internal-2025}
+
   # 阿里云OSS云存储
   endpoint: https://oss-cn-shenzhen.aliyuncs.com
   accessKeyId: LTAI5tGXuJku8MK7TA6gQMZw