diff --git a/pkg/serverconfigs/metric_item_utils.go b/pkg/serverconfigs/metric_item_utils.go
index 974adf8..71ff9e4 100644
--- a/pkg/serverconfigs/metric_item_utils.go
+++ b/pkg/serverconfigs/metric_item_utils.go
@@ -103,6 +103,16 @@ func FindAllMetricKeyDefinitions(category MetricItemCategory) []*shared.Definiti
 				Code:        "${arg.NAME}",
 				Description: "单个URL参数值",
 			},
+			{
+				Name:        "请求来源URL",
+				Code:        "${referer}",
+				Description: "请求来源Referer URL",
+			},
+			{
+				Name:        "请求来源URL域名",
+				Code:        "${referer.host}",
+				Description: "请求来源Referer URL域名",
+			},
 			{
 				Name:        "Header值",
 				Code:        "${header.NAME}",
diff --git a/pkg/serverconfigs/shared/request_variables.go b/pkg/serverconfigs/shared/request_variables.go
index 2a86d6f..be3b1c1 100644
--- a/pkg/serverconfigs/shared/request_variables.go
+++ b/pkg/serverconfigs/shared/request_variables.go
@@ -28,6 +28,7 @@ func DefaultRequestVariables() []maps.Map {
 		{"code": "${serverName}", "name": "接收请求的服务器名", "description": ""},
 		{"code": "${serverPort}", "name": "接收请求的服务器端口", "description": ""},
 		{"code": "${referer}", "name": "请求来源URL", "description": ""},
+		{"code": "${referer.host}", "name": "请求来源URL域名", "description": ""},
 		{"code": "${userAgent}", "name": "客户端信息", "description": ""},
 		{"code": "${contentType}", "name": "请求头部的Content-Type", "description": ""},
 		{"code": "${cookies}", "name": "所有cookie组合字符串", "description": ""},