diff --git a/httpbin/core.py b/httpbin/core.py
index c78d637..d232180 100644
--- a/httpbin/core.py
+++ b/httpbin/core.py
@@ -11,10 +11,12 @@ import base64
 import json
 import os
 import time
+import uuid
 
 from flask import Flask, Response, request, render_template, redirect, jsonify, make_response
 from raven.contrib.flask import Sentry
 from werkzeug.datastructures import WWWAuthenticate
+from werkzeug.http import http_date
 
 from . import filters
 from .helpers import get_headers, status_code, get_dict, check_basic_auth, check_digest_auth, H, ROBOT_TXT, ANGRY_ASCII
@@ -336,7 +338,10 @@ def cache():
     is_conditional = request.headers.get('If-Modified-Since') or request.headers.get('If-None-Match')
 
     if is_conditional is None:
-        return view_get()
+        response = view_get()
+        response.headers['Last-Modified'] = http_date()
+        response.headers['ETag'] = uuid.uuid4().hex
+        return response
     else:
         return status_code(304)