Quick bandwidth optimisation tips for Apache and PHP

Here’s a quick tip to optimise the HTTP response headers sent by your webserver. While being pretty useless to the average user, the Server signature and powered-by headers could be removed or at least reduced. Obviously these changes are only minor, but on a heavily loaded server such as large forums, could make a decent little saving.

These two little changes…

apache2.conf

ServerTokens Prod

php.ini

expose_php = Off

Will change the HTTP response headers on this server from:

Server: Apache/2.0.54 (Debian GNU/Linux) PHP/4.3.10-16 \
mod_ssl/2.0.54 OpenSSL/0.9.7e mod_perl/1.999.21 Perl/v5.8.4
X-Powered-By: PHP/4.3.10-16

To:

Server: Apache

That’s a saving of 128 bytes. This site has served 2025 requests so far this month, so this little trick might only have saved me 253kB, but what if there had been 20,000,000 requests?

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Posted by: daveyboy at 04/09/2006 12:25

Category: Apache, PHP

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3 Responses to “Quick bandwidth optimisation tips for Apache and PHP”

  1. Alain Says:
    September 28th, 2006 at 6:54 am

    Why wouldn’t you just set ServerSignature off in httpd.conf?

  2. daveyboy Says:
    September 28th, 2006 at 8:08 am

    As far I know, ServerSignature only controls the signature on the bottom of error pages or index listings?

    ServerSignature

  3. Jourgenz Says:
    April 2nd, 2008 at 8:05 am

    It’s test.
    I could’t post a message…

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