diff --git a/luci-app-passwall/root/usr/share/passwall/clash_subconverter.lua b/luci-app-passwall/root/usr/share/passwall/clash_subconverter.lua
index ed71adae..2dd8890f 100644
--- a/luci-app-passwall/root/usr/share/passwall/clash_subconverter.lua
+++ b/luci-app-passwall/root/usr/share/passwall/clash_subconverter.lua
@@ -509,3 +509,46 @@ function parseClashNode(raw, remark)
 
 	return #links > 0 and table.concat(links, "\n") or ""
 end
+
+function parse_clash_sub_info(headers)
+	local userinfo = headers:match("[Ss]ubscription%-userinfo:%s*([^\r\n]+)")
+	if not userinfo then return nil end
+
+	local upload = tonumber(userinfo:match("upload=(%d+)")) or 0
+	local download = tonumber(userinfo:match("download=(%d+)")) or 0
+	local total = tonumber(userinfo:match("total=(%d+)")) or 0
+	local expire = tonumber(userinfo:match("expire=(%d+)"))
+	local remain = total - (upload + download)
+	if remain < 0 then remain = 0 end
+
+	local function format_size(bytes)
+		local units = { "B", "KB", "MB", "GB", "TB", "PB" }
+		local i = 1
+		while bytes >= 1024 and i < #units do
+			bytes = bytes / 1024
+			i = i + 1
+		end
+		if bytes >= 100 then
+			return string.format("%.0f%s", bytes, units[i])
+		elseif bytes >= 10 then
+			return string.format("%.1f%s", bytes, units[i])
+		else
+			return string.format("%.2f%s", bytes, units[i])
+		end
+	end
+
+	local rem_traffic = format_size(remain)
+
+	local expired_date
+	if expire and expire > 0 then
+		local t = os.date("*t", expire)
+		expired_date = string.format("%d-%d-%d", t.year, t.month, t.day)
+	else
+		expired_date = "长期有效"
+	end
+
+	return {
+		rem_traffic = rem_traffic,
+		expired_date = expired_date
+	}
+end
diff --git a/luci-app-passwall/root/usr/share/passwall/subscribe.lua b/luci-app-passwall/root/usr/share/passwall/subscribe.lua
index 2f1fefee..b3bed70f 100755
--- a/luci-app-passwall/root/usr/share/passwall/subscribe.lua
+++ b/luci-app-passwall/root/usr/share/passwall/subscribe.lua
@@ -455,6 +455,10 @@ local function get_subscribe_info(cfgid, value)
 	if type(cfgid) ~= "string" or cfgid == "" or type(value) ~= "string" then
 		return
 	end
+	local info = subscribe_info[cfgid]
+	if info and info.expired_date and info.expired_date ~= "" and info.rem_traffic and info.rem_traffic ~= "" then
+		return
+	end
 	value = value:gsub("%s+", "")
 	local date_patterns = {"套餐到期：(.+)", "过期时间：(.+)", "有效期至：(.+)", "到期时间：(.+)", "截止日期：(.+)"}
 	local expired_date
@@ -1627,7 +1631,12 @@ end
 local function curl(url, file, ua, mode)
 	if not url or url == "" then return 22, 404 end
 	local curl_args = {
-		"-fskL", "-w %{http_code}", "--retry 3", "--connect-timeout 3", "-H 'Accept-Encoding: identity'"
+		"-fskL",
+		"--retry 3",
+		"--connect-timeout 3",
+		"-H 'Accept-Encoding: identity'",
+		"--dump-header -",
+		"-w '\\n%{http_code}'"
 	}
 
 	ua = (ua and ua ~= "") and ua or "passwall"
@@ -1645,7 +1654,21 @@ local function curl(url, file, ua, mode)
 	else
 		return_code, result = api.curl_logic(url, file, curl_args)
 	end
-	return return_code, tonumber(result)
+
+	if result and result ~= "" then
+		local body, code = result:match("^(.-)%s*([0-9]+)$")
+		if code then
+			http_code = tonumber(code) or 0
+			header_str = body
+		else
+			http_code = tonumber(result:match("(%d+)%s*$")) or 0
+		end
+	end
+	if header_str ~= "" then
+		header_str = header_str:gsub("\r", "")
+	end
+
+	return return_code, http_code, header_str
 end
 
 function get_headers()
@@ -2122,7 +2145,7 @@ local execute = function()
 			local cfgid = value[".name"]
 			local remark = value.remark or ""
 			local url = value.url or ""
-			local tmp_file, ua
+			local tmp_file, ua, headers
 
 			local url_is_local
 			if fs.access(url) then
@@ -2137,7 +2160,7 @@ local execute = function()
 				log('正在订阅:【' .. remark .. '】' .. url .. ' [' .. result .. ']')
 				tmp_file = "/tmp/" .. cfgid
 				local return_code
-				return_code, value.http_code = curl(url, tmp_file, ua, access_mode)
+				return_code, value.http_code, headers = curl(url, tmp_file, ua, access_mode)
 				if return_code ~= 0 then
 					fail_list[#fail_list + 1] = value
 					luci.sys.call("rm -f " .. tmp_file)
@@ -2155,6 +2178,7 @@ local execute = function()
 						log('订阅:【' .. remark .. '】没有变化，无需更新。')
 					else
 						raw_data = parseClashNode(raw_data)
+						subscribe_info[cfgid] = parse_clash_sub_info(headers)
 						parse_link(raw_data, "2", remark, value)
 						uci:set(appname, cfgid, "md5", new_md5)
 					end