How to detect if a site uses Joomla! and what version

While it is easy to detect what version of Joomla a site is running, it is not always as easy to detect what revision a site is running.

For example you know the site is running 1.0 or 1.5 but it's not so easy to determine if its 1.0.x or 1.5.x

The easiest way to determine if a site is using Joomla! or not is to view the source code of the page.

By default, all Joomla! 1.5.x sites will have the following in the head of their site:

<meta name="generator" content="Joomla! 1.5 - Open Source Content Management" />

And, Joomla! 1.0.x sites will have the following:

<meta name="Generator" content="Joomla! - Copyright (C) 2005 - 2007 Open Source Matters. All rights reserved." />

The second easiest way to determine if a site is using Joomla! or not is to type "/administrator" in the address bar after the URL.

Site using Joomla! 1.5.x should have a header that looks similar to this:

Joomla! 1.5.x

Site using Joomla! 1.0.x should have a header that looks similar to this:

Joomla! 1.0.x

And finally, you can always do the following for both Joomla! 1.0.x and Joomla! 1.5.x. Take the website's homepage and add "?tp=1" on to the end of the it.

Example: http://www.jug-central.org/?tp=1