freshness review

Author: duongau

articles/cdn/cdn-msft-http-debug-headers.md

@@ -1,22 +1,19 @@
 ---
 title:  Debug HTTP headers for Azure CDN from Microsoft | Microsoft Docs
-description: Debug cache request headers provides additional information about the cache policy applied to the requested asset. These headers are specific to Azure CDN from Microsoft.
+description: Debug cache request headers provide additional information about the cache policy applied to the requested asset. These headers are specific to Azure CDN from Microsoft.
 services: cdn
-documentationcenter: ''
 author: duongau
-manager: danielgi
-editor: ''
-
-ms.assetid: 
+manager: kumudd
 ms.service: azure-cdn
 ms.workload: media
 ms.tgt_pltfrm: na
 ms.topic: article
-ms.date: 07/31/2019
+ms.date: 02/27/2023
 ms.author: duau
 
 ---
 # Debug HTTP header for Azure CDN from Microsoft
+
 The debug response header, `X-Cache`, provides details as to what layer of the CDN stack the content was served from. This header is specific to Azure CDN from Microsoft.
 
 ### Response header format
@@ -25,9 +22,9 @@ Header | Description
 -------|------------
 X-Cache: TCP_HIT | This header is returned when the content is served from the CDN edge cache. 
 X-Cache: TCP_REMOTE_HIT | This header is returned when the content is served from the CDN regional cache (Origin shield layer)
-X-Cache: TCP_MISS | This header is returned when there is a cache miss, and the content is served from the Origin.
-X-Cache: PRIVATE_NOSTORE | This header is returned when the request cannot be cached as Cache-Control response header is set to either private or no-store.
+X-Cache: TCP_MISS | This header is returned when there's a cache miss, and the content is served from the Origin.
+X-Cache: PRIVATE_NOSTORE | This header is returned when the request can't be cached as Cache-Control response header is set to either private or no-store.
 X-Cache: CONFIG_NOCACHE | This header is returned when the request is configured not to cache in the CDN profile.
-X-Cache: N/A | This header is returned when the request that was denied by Signed URL and Rules Set.
+X-Cache: N/A | This header is returned when a request gets denied by Signed URL and Rules Set.
 
-For additional information on HTTP headers supported in Azure CDN, see [Front Door to backend](../frontdoor/front-door-http-headers-protocol.md#from-the-front-door-to-the-backend).
+For more information on HTTP headers supported in Azure CDN, see [Front Door to backend](../frontdoor/front-door-http-headers-protocol.md#from-the-front-door-to-the-backend).