logged out, no panel

The panel should appear automatically, or there should be a slim “Query Monitor” bar across the bottom that you can resize to show the panel.

If that’s not present then can you let me know if there is a JavaScript error in your browser console or an error in your PHP error log?

You might want to try switching to one of the default “Twenty” themes too, in case the problem lies with your theme.

@johnbillion no JS error in browser console. I can’t switch theme on my live site. Anywhere else I should look? To rule out possible css issue, what DOM element can I expect to find in page source?

The main element is a div with id="query-monitor-main" right at the bottom of the HTML output.

@johnbillion The main element is missing. What could have caused this?

• Is there any kind of message in the browser console from Query Monitor?
• Are you using Chrome? If so, go to the Application tab in your browser dev tools, and choose Cookies on the left hand side. Is there a wp-query_monitor-... cookie present? If not then that’s the problem, the cookie isn’t properly set. This might be caused by a security or login related plugin that clears cookies when you log out, or it could happen if you’ve got a plugin which customises another aspect of the login system (such as the URL etc).

I think your best bet is to try deactivating other plugins on your site or switch to another theme when you can. I can’t be of much more help I’m afraid.