100644 blob dc573463483f945d1c69abba981ef80cf097913d	cache_revalidation.txt
100644 blob af937307472b46e619a548f2134834c1e134b0b3	caching_proxies.txt
100644 blob 872018e57993562e9599f34b40aa97c2d29bd771	content_delivery_networks.txt
100644 blob 65d6d710cb6b6aa68994943370f5b80a6a224f85	http_11.txt
100644 blob 23ee1da1148d57463a8dc9bf7e468fa92c945b1b	index.txt