Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

ySlow is saying I have 30 misconfigured etages on and I'm not sure what that means or how to fix it. After a quick Google search it appears to be the same thing as a last-modified header. Is it possible for me to setup my server so it sends the last-modified and etag header as the default last modified timestamp of the file?

share|improve this question
up vote 0 down vote accepted

It's not the same thing as the last-modified-header, it's a "better", safer way to identify the version of a file and was introduced with HTTP 1.1. One technical fact is that the ETags are different on different Servers, so you may can get a problem if you 'r using a CDN. I would advise you to disable E-Tags, in Apache you just need to add: FileETag none .

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.