Comments on: Website Optimization 01: disable ETag in apache (debian/ubuntu)

By: Linkpool Nummer 2 | PHP Gangsta - Der PHP Blog

Linkpool Nummer 2 | PHP Gangsta - Der PHP Blog — Sat, 06 Mar 2010 14:15:59 +0000

[...] Ergänzung zu YSlow/Google Pagespeed etc. http://www.webpagetest.org ETags im Apache deaktivieren http://www.lavluda.com/2008/10/20/website-optimization-01-disable-etag-in-apache-debianubuntu/ PHP 5.3.2 Changelog http://www.php.net/ChangeLog-5.php#5.3.2 Chaosradio Podcast über die [...]

By: Sandeep Ghael

Sandeep Ghael — Sat, 15 Aug 2009 00:11:27 +0000

FYI, on Ubuntu 9.04, the following command

sudo a2enmod header

should be:

sudo a2enmod headers

By: Thirupathy

Thirupathy — Thu, 02 Jul 2009 20:28:45 +0000

hi ,

thanks for this info. how i will set & remove etag for external images coming from cdn server like akamai.

help me on this

By: lavluda

lavluda — Sat, 22 Nov 2008 06:07:45 +0000

@Jordon: yea it’s bad to ignore/disable etags, but when you are running a single server, all the files are coming from same host every time, then it’s not really necessary to match the etags. you know, by saving a single response for every single file will save your huge server time.

By: Jordon Bedwell

Jordon Bedwell — Thu, 20 Nov 2008 22:51:05 +0000

I find disabling E-Tags for the sake of very little server optimisation is a very ignorant move. Especially in a world where response is everything. This is almost as bad as forgetting far-future dates in the headers, DEFLATE on static files and dynamic pages and putting JS at the bottom of the page. Real administrators can expand clusters and even optimise other parts of the server for the sake of response on the end-user. Disabling these things can impact your sites hits and performance more than disabling will impact stability.

By: murshed ahmmad khan

murshed ahmmad khan — Sun, 26 Oct 2008 06:59:32 +0000

good post. keep it up. very few are aware of the E_TAG things. so welcome and em looking forward for the next post of this series .