Mike Jolley (a11n)

<p>Testing your WordPress site? This plugin allows you to display memory, page load time and query count in the footer of your site on both the front-end and within admin.</p>
<p>This plugin is partly based upon the WP Query Counter by Steven Word (http://www.stevenword.com/plugins/wp-query-counter/) and has been customised for my testing needs.</p>
<p>If you’d like to contribute to the plugin you can find it on GitHub: <a href="https://github.com/mikejolley/WP-Page-Load-Stats" rel="nofollow ugc">https://github.com/mikejolley/WP-Page-Load-Stats</a></p>


WP Page Load Stats

Not sure why this only has 100+ users but this is a great tool!

Excellent!

Display memory, page load time, average load time and query count in the footer of your site.

Memorista

<h4>Memorista for WordPress</h4>
<p><em>Let your guests share their memories by creating your own guestbook with Memorista.</em></p>
<p>This plugin helps you integrate your Memorista guestbook onto your site. If you don’t have a Memorista account yet, you can create one for free at <a href="https://memorista.io" rel="nofollow ugc">memorista.io</a>.</p>
<h4>Features</h4>
<ul>
<li>Create your own Guestbook for any purpose in just 5 minutes.</li>
<li>Admin UI to manage all entries including the ability to remove undesirable submissions.</li>
<li>Memorista speaks your language. Simply define the language of your Guestbook in the settings and the Memorista Widget automatically adjusts without you having to update anything.</li>
<li>Customize the title, description and language and make it blend in with your WordPress site. Your users will be able to post entries without ever leaving your website.</li>
</ul>


Offer guestbook functionality on any WordPress site in just a few steps.

WP Page Load Stats vs Memorista