HOW TO USE ETAGS

mnot’s Web log: ETags, ETags, ETags
It desscribes in practical terms how to use etags with conditional requests in various authoring scenarios. Henrik [1] http://www.w3.org/1999/04/Editing

Joe Gregorio | BitWorking | REST Tip: Deep etags give you more ...
It sucks that I can't use Etags w/ SSI, especially when 90% of the hits could legitimately use an Etag, but I guess I can't always have cake and eat it too

High Performance Web Sites: Rule 13 – Configure ETags (Yahoo ...
High Performance Web Sites: Rule 13 – Configure ETags (Yahoo! Developer Network blog

etags
Use etags --help to obtain a list of the recognised languages. This feature is particularly useful inside regex files . A regex file contains one regex per line

Django | Middleware | Django Documentation
Handles ETags based on the USE_ETAGS setting. If USE_ETAGS is set to True , Django will calculate an ETag for each request by MD5-hashing the page content, and it’ll take care of ...

Use Etags To Reduce Bandwidth
http://www.pocketsoap.com/weblog/stories/2002/05/19/bdgToEtags.htm

IBM developerWorks : Blogs : Patrick Mueller
You must use ETags or your performance will suffer". They're an optimization for certain types of interaction. And depending on your app, may be expensive to handle

InfoQ: Using ETags to Reduce Bandwith & Workload with Spring ...
Gavin Terrill explores one of the lessor known facilities available to web developers, the humble "ETag Response Header", and how to integrate its use in a Spring and Hibernate ...

LJ::etags
LJ::etags. LJ::etags — Escapes < and > from a string. Use ...

Sam Ruby: Triage
I understand this but even if you do use Etags the request has to be passed to the application in order to validate the cached response (with if-none-match and so on