agraddy

The NumbersQ plugin provides a simple page that gives you a quick overview of the stats for your WordPress site and the overall stats of your WooCommerce store if you have WooCommerce installed.
This plugin allows for the creation of a connection key that can be used on <a href="https://www.numbersq.com" rel="nofollow ugc">NumbersQ.com</a> to pull in numbers and make calculations on the stats for your site and store. NumbersQ also provides additional options like the ability to pull data from specific date ranges or combine the data with other 3rd party stats.
Be careful to keep the NumbersQ keys private. Anyone with access to the keys will be able to see private and sensitive stats about your site.

NumbersQ

Provides overall stats and numbers for your site and also provides the ability to create a connection with NumbersQ.com.

Whiler

It can be used to avoid browsers cache by inserting a random number. 
For instance, http://my_url?[random-number]” could generate http://my_url?134548.
[random-number from=”2″ to=”72″ format=”%b”]%d minutes[/random-number]
output: an integer value between 2 & 72 followed by the word ‘minutes’
This plugin is a sample on how to create a plugin which: 
* supports internationalization, 
* provides an option screen, 
* saves some options, 
* use images, 
* replaces a tag.
By the way, it generates randomized numbers ;o)
If you need more functionalities, feel free to ask (email/blog)…
A post with a French tutorial is available <a href="http://blogs.wittwer.fr/whiler/2009/11/23/exemple-complet-extension-wordpress/" rel="nofollow ugc">here</a>.
<h3>Supported languages</h3>
<ul>
<li>English</li>
<li>French</li>
<li>Russian (Thanks to <a href="http://www.shinephp.com/" rel="nofollow ugc">Vladimir / ShinePHP.com</a>)</li>
</ul>

Random Number Generator

Simply replace the tag [random-number] by a random number.

NumbersQ vs Random Number Generator