How to Insert AdSense Ads Inside Blog Post Content (No Plugin)

Ads placed inside your article content usually perform better than ads in the sidebar or after the post, because readers actually see them while reading. You can insert AdSense ads inside blog post content in WordPress without a plugin, using a short function that adds your ad after a chosen paragraph. Here’s the code we use, fixed and updated for 2026, plus the AdSense In-article ad format and the plugin alternatives.

Quick answer: Add a filter on the_content in your child theme’s functions.php that splits the post at each closing </p> tag and inserts your AdSense ad code after, say, the 3rd paragraph, on single posts only. Use an AdSense In-article ad unit for the best fit. Or turn on AdSense Auto ads, or use the Advanced Ads or Ad Inserter plugin.

What in-content ads look like

The ad appears between paragraphs, where it blends with the content and gets noticed, which usually means a higher click-through rate than ads at the edges of the page.

Step 1: Create an In-article ad unit

In your AdSense account, go to Ads > By ad unit and create an In-article ad. It’s designed to sit between paragraphs and adapts to your content width. Copy the <ins> code and note your publisher ID (ca-pub-…) and ad slot number.

Step 2: Add the code to functions.php

Add this to your child theme’s functions.php, or to a code snippets plugin. Back up the file first, as a typo can take your site offline.

add_filter( 'the_content', 'qot_insert_incontent_ad', 20 );
function qot_insert_incontent_ad( $content ) {
    if ( ! is_single() || ! in_the_loop() || ! is_main_query() ) {
        return $content;
    }
    $after = 3; // insert the ad after this paragraph
    $ad = '<div class="incontent-ad">
      <ins class="adsbygoogle" style="display:block; text-align:center;"
           data-ad-layout="in-article" data-ad-format="fluid"
           data-ad-client="ca-pub-XXXXXXXXXXXXXXXX" data-ad-slot="1234567890"></ins>
      <script>(adsbygoogle = window.adsbygoogle || []).push({});</script>
    </div>';
    $parts = explode( '</p>', $content );
    foreach ( $parts as $i => $part ) {
        if ( trim( $part ) ) {
            $parts[ $i ] .= '</p>';
        }
        if ( $i + 1 === $after ) {
            $parts[ $i ] .= $ad;
        }
    }
    return implode( '', $parts );
}

Replace the publisher ID and slot with your own. Make sure the main AdSense script is loaded once in your site’s head; here’s why you should load the AdSense script only once.

How the code works

1. is_single() limits ads to single posts. Use is_singular() to include pages too. in_the_loop() and is_main_query() stop the ad appearing in widgets or excerpts.
2. Priority 20 runs the filter after WordPress has added paragraph tags to Classic Editor content.
3. $after = 3 places the ad after the third paragraph. Change it to move the ad further down. If a post has fewer paragraphs, no ad is inserted.
4. The incontent-ad class lets you style the spacing, for example .incontent-ad { margin: 24px 0; min-height: 250px; }. The minimum height reserves space and prevents layout shift.

Fixes from our original version: the 2013 code used one class name in the PHP and another in the CSS, and added an extra closing </p> at the end of every post. The version above fixes both. The original idea came from code shared by Brad Dalton.

Want more than one ad?

Change the check to insert ads at several positions, for example in_array( $i + 1, array( 3, 8 ), true ) for ads after paragraphs 3 and 8. AdSense no longer limits the number of ads per page, but ads must not outweigh your content, and too many hurt the reading experience. For archive pages, see how to insert AdSense ads between posts.

No-code alternatives

• AdSense Auto ads: Google places in-content ads for you. We use AdSense Auto ads on this site.
• Plugins: Advanced Ads and Ad Inserter can insert ads after any paragraph, with rules for categories, devices and more.

I still prefer a few lines of code: it’s lighter than a plugin and does exactly what I need.

Frequently asked questions

Is it allowed to put AdSense ads inside content?

Yes, as long as ads are clearly separated from content and can’t be confused with links or navigation. The In-article format is made for this.

Why aren’t my in-content ads showing?

Check the publisher ID and slot, make sure the AdSense script loads once in the head, clear your cache, and allow time for new ad units to start serving. Empty slots can be hidden neatly; see how to hide unfilled AdSense ad spaces.

Will this work with the block editor?

Yes. Block editor content also uses paragraph tags, so the same filter works.