MythThrazz

The plugin is very simple and it doesn’t come with any changable options.
The only feature it has is ability to detect the AdBlock (tested on Chrome AdBlock extension) and defines the HTML class allowing to control the visibility of 
the elements on your page based on the detection result eg. you can show an element on your page only if AdBlock is detected, or hide it.

Tiny Simple AdBlock Detector

Detects AdBlocking software and allows to display some html based on detection result. Word for AdBlock for sure. Should work for others.

Element Invader

Ivica Delic

The plugin analyzes your pages and posts to find all Elementor Widgets that are used, not used or missing on certain pages and posts.
Designed as part of service and in some cases using API from <a href="https://elementdetector.com/" rel="nofollow ugc">https://elementdetector.com/</a>, for example where you don’t have plugin installed to detect name based on widget key found in elementor content structure.
Also can detect elements even on third parity external websites.
This will help you to remove unused Elementor Widgets and optimize the speed of your website related to Elementor.
Or to Detect Missing Widget from accidentally deleted plugins on posts or pages.
Plugin also showing Elementor Elements/Widgets Position on specific page at same time to quickly find where exactly widget is used.
Also including functionality to show Which Elementor Addons / Widgets are used inside Elementor Editor On Element Hover.
In latest version will also detect Images Used in Elementor Structure Per Page, like stranfe filenames, filesize, image resolutions etc.
<iframe loading="lazy" title="Elementor - ElementDetector Website to Detect Elementor Widgets" width="750" height="422" src="https://www.youtube.com/embed/Mz1Aafz5gU4?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
<iframe loading="lazy" title="Widget Detector for Elementor Is A Lifesaver When You Need It" width="750" height="422" src="https://www.youtube.com/embed/LfRparF-jb0?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
<h3>👑 Pro version also supports:</h3>
Deativate / activate specific unused Elementor Widgets 
CSV Exports 
Advanced Search and Filtering features 
Plugins Usage

Widget Detector for Elementor

Detect Elementor Widgets used on pages, also detect not used Widgets or Missing Widgets.

Tiny Simple AdBlock Detector vs Widget Detector for Elementor