diff --git a/src/server.ts b/src/server.ts
index 5870e7c2..cf525c5d 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -29,6 +29,7 @@ console.log('AWS_SECRET_ACCESS_KEY: ', process.env.AWS_SECRET_ACCESS_KEY);
 export async function handler(req: IncomingMessage, res: ServerResponse) {
     let { method, url, headers } = req;
     console.log(`${method} ${headers.host}${url}`);
+    console.log(`user-agent: ${headers['user-agent']}`);
     let { pathname = '/', query = {} } = parse(url || '', true);
     if (!pathname || pathname === '/') {
         pathname = pages.index;