Jesper van Engelen

The Sidebars & Widgets extension for the Debug Bar shows you all you need to know about the sidebars and widgets on the current page. It shows the sidebars displayed and the widgets displayed in them, and tells you whether all widgets in the sidebar were actually displayed.
This plugin allows you to analyze the behaviour of your WordPress sidebars and wigets, and is aimed at WordPress developers.
<blockquote>
This plugin is an extension to the <a href="https://wordpress.org/plugins/debug-bar/" rel="ugc">Debug Bar plugin</a>, which is required for this plugin to work.
</blockquote>
This plugin integrates nicely with <a href="https://wordpress.org/plugins/content-aware-sidebars/" rel="ugc">Content Aware Sidebars</a>, telling you what sidebars were replaced and merged. It is an essential plugin if you use Content Aware Sidebars with a big number of sidebars.

Debug Bar – Sidebars & Widgets

Debug Bar extension that adds information about the sidebars and widgets on the current page. Integrates with Content Aware Sidebars plugin.

Alley

Matthew Boynes

An add-on for the Debug Bar plugin that will log and profile remote requests made through the HTTP API. This plugin requires the Debug Bar Plugin.
This plugin will add a “Remote Requests” panel to Debug Bar that will display the:
<ul>
<li>Request method (GET, POST, etc)</li>
<li>URL</li>
<li>Time per request</li>
<li>Total time for all requests</li>
<li>Total number of requests</li>
</ul>
Optionally, you can add ?dbrr_full=1 to your URL to get additional information, including all request parameters and a full dump of the response with headers.

Debug Bar Remote Requests

An add-on for the Debug Bar plugin that will log and profile remote requests made through the HTTP API

Debug Bar – Sidebars & Widgets vs Debug Bar Remote Requests