(100% Working) How to Add an Anti-AdBlock Script in Blogger (Blogspot)

In this post, I’ll walk you through a practical method to incorporate an Anti-AdBlock feature on your Blogger site. This can help you ensure that your ads are not blocked and help maintain your revenue, especially if you rely on ad networks like AdSense.

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What Is AdBlock?

AdBlock is a widely used browser extension (for Chrome and Safari) that filters out and blocks ads and other unwanted web elements. By preventing ads from being displayed, it reduces clutter for users — but for bloggers who rely on ad income, it can be a real problem. 

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What Is Anti-AdBlock?

An Anti-AdBlock system is essentially a script or mechanism that detects if a visitor has an ad blocker activated. If it finds one, it displays a message asking the visitor to disable their ad blocker or whitelist your site so your ads can show. In effect, it tries to override or bypass the ad blocker's effect on your page.

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Why Use Anti-AdBlock?

• Protect your revenue: If a visitor’s ad blocker prevents ads from showing, that’s potential income lost for you as a publisher.

• Encourage fair use: Many website owners argue that free content is supported by ad revenue, so asking users to whitelist your site can help maintain that balance.

• Selective enforcement: Rather than blocking all content, you can prompt politely and allow access once the user disables AdBlock or whitelists your domain.

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Step-by-Step: Installing Anti-AdBlock in Blogger

Here’s a refined guide to help you integrate anti-adblock functionality in your Blogger template:

1. Log Into Blogger & Open Theme HTML

• Log into your Blogger dashboard.

• Go to “Theme” in the left menu.

• Click the “Customize” dropdown (or arrow).

• Select “Edit HTML” to open the theme’s source code. 

2. Locate the </body> Tag

Once in the HTML editor, click anywhere in the code area, then use Ctrl + F (or CMD + F) to search for the closing </body> tag. This is where you’ll insert the anti-adblock script. 

3. Insert the Anti-AdBlock Script

Just above the </body> tag, paste the following code snippet:

<!-- Anti AdBlock Section -->
<link href="https://codeflareblogspot.github.io/code/KillAdBlock.css" rel="stylesheet"/>
<script>
  var titleAd = 'AD Blocker Detected';
  var notifAd = 'Please support this site by disabling your browser <u>AD-Block</u> or whitelisting this domain to continue reading.<br/><b>Thank You</b>';
</script>
<script src="https://codeflareblogspot.github.io/code/KillAdBlock.js"></script>
<!-- End Anti AdBlock -->

Here’s what each part means:

• titleAd: The heading shown when an ad blocker is detected (you can customize it).

• notifAd: The message content encouraging users to disable or whitelist. You can edit this text to align with your site’s tone or branding.

• The CSS and JS files are hosted externally — they handle the detection behavior and styling.

4. Save & Test

After inserting the script, click the Save icon (usually in the top-right corner). Then view your blog while your ad blocker is active to see how the warning appears in action. 

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Tips, Caveats & Improvements

• Browser compatibility: Some browsers (like Brave or those with built-in shielding) may circumvent scripts like this. Some users have noted that using Brave, for example, bypasses the warning entirely. 

• User experience matters: Be polite in your message. Don’t block all content entirely — allow users to continue (if possible) after disabling the blocker, rather than presenting an immovable barrier.

• Customize styling: Change colors, fonts, layout in the CSS to match your blog’s aesthetic. Commenters on the original article asked about adjusting the color scheme to white/green, which is feasible through CSS edits. 

• Fallback content: Consider displaying alternate content or a partial ad-free experience if the user persists in blocking — to avoid turning away all traffic.

• Keep scripts updated: External scripts may break or be blocked. Periodically check that KillAdBlock.js and the linked CSS are still functional and not flagged.

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Final Thoughts

Adding anti-adblock functionality can be a helpful measure for bloggers and publishers to protect their ad income. But it’s best implemented thoughtfully — with respect for your visitors, clean design, and graceful fallback options.

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