| CPC H04L 67/568 (2022.05) [G06F 12/0802 (2013.01); G06F 16/41 (2019.01); G06F 16/48 (2019.01); G06F 16/9574 (2019.01); H04L 67/02 (2013.01); G06F 2212/154 (2013.01)] | 20 Claims |

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1. A processor-implemented method, comprising:
transmitting, from a requestor to a first server, a revalidation request relating to a content object; and
receiving, at the requestor from the first server, a response to the revalidation request indicating that the content object is not modified,
wherein the response is received at the requestor based on:
the first server determining that metadata describing one or more characteristics of the content object is stored in a cache associated with the first server and that the content object is not stored in the cache, and in response determining not to retrieve content object data from any server, in response to the revalidation request, based on analyzing a metric relating to retrieving the content object.
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