With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cceHttpHCRequestsImsInmTotalCache
Cisco Content Engine Http HC Requests Ims Inm Total Cache
1.3.6.1.4.1.9.9.178.1.1.1.25
Total number of If-Modified-Since (IMS) and If-Not-Matched (INM) requests from the client served from the populated cache of the HTTP proxy without revalidation. This object is a 64-bit version of cceHttpRequestsImsInmTotalCache.
Back to CISCO-CONTENT-ENGINE-MIB MIB page.
IPHost Network monitor allows you to monitor cceHttpHCRequestsImsInmTotalCache on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.