diff --git a/backend/app/service/website.go b/backend/app/service/website.go
index 126579ac4..fd37efcbe 100644
--- a/backend/app/service/website.go
+++ b/backend/app/service/website.go
@@ -180,6 +180,9 @@ func (w WebsiteService) GetWebsites() ([]response.WebsiteDTO, error) {
 
 func (w WebsiteService) CreateWebsite(create request.WebsiteCreate) (err error) {
 	alias := create.Alias
+	if alias == "default" {
+		return buserr.New("ErrDefaultAlias")
+	}
 	if common.ContainsChinese(alias) {
 		alias, err = common.PunycodeEncode(alias)
 		if err != nil {
diff --git a/backend/i18n/lang/en.yaml b/backend/i18n/lang/en.yaml
index 869ec111d..536e6344c 100644
--- a/backend/i18n/lang/en.yaml
+++ b/backend/i18n/lang/en.yaml
@@ -93,6 +93,7 @@ ErrPHPResource: 'The local runtime does not support switching！'
 ErrPathPermission: 'A folder with non-1000:1000 permissions was detected in the index directory, which may cause an Access denied error when accessing the website. Please click the save button above'
 ErrDomainIsUsed: "Domain is already used by website {{ .name }}"
 ErrDomainFormat: "{{ .name }} domain format error"
+ErrDefaultAlias: "default is a reserved code name, please use another code name"
 
 #ssl
 ErrSSLCannotDelete: "The certificate {{ .name }} is being used by the website and cannot be removed"
diff --git a/backend/i18n/lang/zh-Hant.yaml b/backend/i18n/lang/zh-Hant.yaml
index 1a7116c5f..afac7a07f 100644
--- a/backend/i18n/lang/zh-Hant.yaml
+++ b/backend/i18n/lang/zh-Hant.yaml
@@ -93,6 +93,7 @@ ErrPHPResource: '本地運行環境不支持切換！'
 ErrPathPermission: 'index 目錄下偵測到非 1000:1000 權限資料夾，可能導致網站存取 Access denied 錯誤，請點擊上方儲存按鈕'
 ErrDomainIsUsed: "域名已被網站【{{ .name }}】使用"
 ErrDomainFormat: "{{ .name }} 域名格式不正確"
+ErrDefaultAlias: "default 為保留代號，請使用其他代號"
 
 #ssl
 ErrSSLCannotDelete: "{{ .name }} 證書正在被網站使用，無法刪除"
diff --git a/backend/i18n/lang/zh.yaml b/backend/i18n/lang/zh.yaml
index c0b489cf4..5b72f9dca 100644
--- a/backend/i18n/lang/zh.yaml
+++ b/backend/i18n/lang/zh.yaml
@@ -93,6 +93,7 @@ ErrPHPResource: '本地运行环境不支持切换！'
 ErrPathPermission: 'index 目录下检测到非 1000:1000 权限文件夹，可能导致网站访问 Access denied 错误，请点击上方保存按钮'
 ErrDomainIsUsed: "域名已被网站【{{ .name }}】使用"
 ErrDomainFormat: "{{ .name }} 域名格式不正确"
+ErrDefaultAlias: "default 为保留代号，请使用其他代号"
 
 #ssl
 ErrSSLCannotDelete: "{{ .name }} 证书正在被网站使用，无法删除"