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Details

Name

Etag

Web Link

https://en.wikipedia.org/wiki/HTTP_ETag

Description

ETag or entity tag is part of HTTP, the protocol for the World Wide Web. It is one of several mechanisms that HTTP provides for web cache validation, which allows a client to make conditional requests. This allows caches to be more efficient, and saves bandwidth, as a web server does not need to send a full response if the content has not changed. ETags can also be used for optimistic concurrency control, as a way to help prevent simultaneous updates of a resource from overwriting each other. This is relevant to support central systems from fetching only new data about metrics.

Type

other, specification

Discipline

Subject Agnostic

Keywords

repository, usage statistics