This plugin hasn’t been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Debug Bar Query Tracer


The Debug Bar Query Tracer plugin backtraces all calls to WPDB::query() and determines:

  • which plugin caused that database query (it ignores all queries that are a part of normal WordPress activity), and
  • the function chain that led to that query.

It then displays that information on an additional panel in the Debug Bar
plugin (which is required).


  • The Query Tracer Panel


  1. Install the Debug Bar plugin
  2. Activate the Debug Bar plugin
  3. Install the Query Tracer plugin
  4. Activate the Query Tracer plugin


Feel free to ask questions on my website and
I will update this section with any frequent questions.


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Contributors & Developers

“Debug Bar Query Tracer” is open source software. The following people have contributed to this plugin.


Change log


  • Initial release


  • Made sure everything is ready for internationalization


  • Bugfixes
  • Added better handling for instances where not queries were caused by plugins