A lightweight and flexible ad engine for WordPress. Place banners, popups, sticky ads, and popunders across desktop and mobile with full control.

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Init Ad Engine lets you insert various ad formats into your WordPress site with zero coding required.
Built for flexibility and performance: 
– Tabbed admin UI with clear separation by device type 
– All styles are inline or embedded – no external CSS files 
– Multiple ad formats supported: popups, sticky bars, floating ads, popunder, before/after content 
– Optional fallback HTML/JS code when no image is provided
Available ad positions:
<ul>
<li>
Desktop (PC): 
Billboard, Balloon Left/Right, Float Left/Right, Catfish Top/Bottom, Popup Center, Before/After Content
</li>
<li>
Mobile: 
Mini Billboard, Sticky Top/Bottom, Popup Center, Before/After Content
</li>
<li>
Special: 
Popunder (opens new tab on first click), Global header/footer code injection
</li>
</ul>
This plugin is part of the <a href="https://en.inithtml.com/init-plugin-suite-minimalist-powerful-and-free-wordpress-plugins/" rel="nofollow ugc">Init Plugin Suite</a> — a collection of minimalist, fast, and developer-focused tools for WordPress.
GitHub repository: <a href="https://github.com/brokensmile2103/init-ad-engine" rel="nofollow ugc">https://github.com/brokensmile2103/init-ad-engine</a>
<h3>Features</h3>
<ul>
<li>20+ configurable ad positions</li>
<li>Popunder with cooldown and click threshold</li>
<li>Exit-intent or delay-based popup behavior</li>
<li>Global <code><head></code> and <code></body></code> injection fields</li>
<li>Fallback HTML/JS ad code per position</li>
<li>Minimalist inline CSS for fast load</li>
<li>Responsive support for all device types</li>
<li>Clean admin UI with media uploader</li>
<li>Affiliate Gate with flexible display logic (always-on, expire-after-click, random %, every X pages)</li>
</ul>
<h3>Filters for Developers</h3>
<ul>
<li>
<code>init_plugin_suite_ad_engine_use_kses</code> 
Control whether ad snippets are escaped via <code>wp_kses</code>. Default: <code>true</code>.
</li>
<li>
<code>init_plugin_suite_ad_engine_allowed_tags</code> 
Extend or modify the allow-list of permitted tags/attributes for ad snippets.
</li>
<li>
<code>init_plugin_suite_ad_engine_disable_all_ads</code> 
Disable all ad injections globally. Default: <code>false</code>.
</li>
<li>
<code>init_ad_engine_should_enqueue_affiliate_gate</code> 
Control whether the Affiliate Gate scripts should be enqueued.
</li>
</ul>
<h3>Security Notes</h3>
<ul>
<li>Ad snippets entered in the plugin settings are considered user-provided content. </li>
<li>By default, all snippets are escaped at render time using <code>wp_kses</code> with a restricted allow-list of tags and attributes. </li>
<li>Developers can disable escaping via the <code>init_plugin_suite_ad_engine_use_kses</code> filter if they explicitly trust their input. </li>
<li>All ad injections can be globally disabled via the <code>init_plugin_suite_ad_engine_disable_all_ads</code> filter. </li>
<li>Only administrators with the <code>manage_options</code> capability can configure or modify global ad settings.</li>
</ul>
<h3>License</h3>
This plugin is licensed under the GPLv2 or later. 
You are free to use, modify, and distribute it under the same license.

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