diff --git a/index.js b/index.js
index 63bd512..a3c111c 100644
--- a/index.js
+++ b/index.js
@@ -29,6 +29,20 @@ if (!fs.existsSync(cacheDir)) {
     fs.mkdirSync(cacheDir);
 }
 
+
+// 定时清理过期缓存数据并更新请求
+setInterval(async () => {
+    const currentTime = Date.now();
+    for (const key in pathIndex) {
+        const { timestamp } = pathIndex[key];
+        // 24小时
+        if (currentTime - timestamp > 24 * 60 * 60 * 1000) {
+            delete pathIndex[key];
+        }
+    }
+}, 1 * 60 * 60 * 1000); // 每隔 1 小时执行一次
+
+
 const server = http.createServer(async (req, res) => {
     if (req.url === '/favicon.ico') {
         res.writeHead(204);
@@ -53,8 +67,8 @@ const server = http.createServer(async (req, res) => {
     let tempCacheContentFile = '';
 
     if (pathIndex[uniqidhex]) {
-        cacheMetaFile = pathModule.join(cacheDir, `${pathIndex[uniqidhex]}.meta`);
-        cacheContentFile = pathModule.join(cacheDir, `${pathIndex[uniqidhex]}.content`);
+        cacheMetaFile = pathModule.join(cacheDir, `${pathIndex[uniqidhex].uniqid}.meta`);
+        cacheContentFile = pathModule.join(cacheDir, `${pathIndex[uniqidhex].uniqid}.content`);
     }
 
     if (pathIndex[uniqidhex] && isCacheValid(cacheMetaFile, cacheContentFile)) {
@@ -66,16 +80,18 @@ const server = http.createServer(async (req, res) => {
                 const { url: realUrl, cloudtype, expiration, path, headers, uniqid } = apiData.data;
                 const data = { realUrl, cloudtype, expiration: expiration * 1000, path, headers, uniqid };
 
-                pathIndex[uniqidhex] = data.uniqid;
+                // 修改 pathIndex 记录时，添加时间戳
+                pathIndex[uniqidhex] = { uniqid: data.uniqid, timestamp: Date.now() };
+
 
                 cacheMetaFile = pathModule.join(cacheDir, `${data.uniqid}.meta`);
                 cacheContentFile = pathModule.join(cacheDir, `${data.uniqid}.content`);
                 tempCacheContentFile = pathModule.join(cacheDir, `${data.uniqid}_${crypto.randomBytes(16).toString('hex')}.temp`);
 
-                if (expiration > 0) {
-                    fs.writeFileSync(cacheMetaFile, JSON.stringify(data));
-                }
+                // 重新写入 meta 缓存
+                fs.writeFileSync(cacheMetaFile, JSON.stringify(data));
 
+                // 如果内容缓存存在, 则直接调用
                 if (fs.existsSync(cacheContentFile)) {
                     serveFromCache(cacheMetaFile, cacheContentFile, res);
                     return;