AdSense Ads Not Showing? How to Tell a Broken Setup From an Unfilled Ad Unit

A blank rectangle where an ad should be means one of two completely different things, and almost every guide on this topic conflates them:

1. Your ad code is broken — the request never happens.
2. The ad code works perfectly — the request happened and no ad came back.

The second is called an unfilled ad unit, it is entirely normal, and no amount of reinstalling your ad code will change it. Telling them apart takes about thirty seconds.

The Thirty-Second Test

Load the page, right-click the blank space, and choose Inspect. Find the <ins class="adsbygoogle"> element and look for a data-ad-status attribute.

Google adds that attribute to the <ins> element after an ad request completes. It has three possible values:

• filled — an ad was returned and is displaying
• unfilled — no ads were returned
• unfill-optimized — no ads were returned, and AdSense optimised the unit

If there is no data-ad-status attribute, the request never completed, and you have a genuine implementation problem. Read on to the code section.

If It Says "Unfilled"

No ad was available for that slot at that moment. Google explains the behaviour: when a unit is unfilled, AdSense tries either to collapse the unit or show a blank space, depending on whether collapsing would cause page reflow. For most unfilled units it keeps the size and shows blank space, so your layout doesn't jump around.

Common reasons a unit goes unfilled:

• Low advertiser demand for your audience. Advertiser competition varies enormously by country and topic. Some geographies simply have thin demand.
• Very new sites. Little traffic history means less to target against.
• Narrow ad settings. Aggressive category or advertiser blocking removes the very ads that would have filled the slot.
• An ad serving limit on the account. If earnings collapsed suddenly and most units are unfilled, check the Policy Center — a limit is a different problem entirely.

Collapsing blank units with CSS

If the empty gaps look broken, Google supports hiding them by targeting the status attribute:

ins.adsbygoogle[data-ad-status="unfilled"] {
    display: none !important;
}

That hides units where no ad was returned, while leaving filled ones untouched.

If There's No data-ad-status at All

Now you have a real implementation fault. Google lists the specific problems it sees most:

• Incomplete code — "Your ad code does not appear in its entirety, for example, there's a missing <script> or <ins> tag."
• Code collapsed onto one line — some editors and CMS fields do this automatically.
• Extra HTML tags inserted within the snippet — visual editors are the usual culprit.

Google's stated remedy is not to hand-repair it: replace the broken code with fresh ad code copied from the Ads page in your AdSense account. Then view your page source and confirm the code appears exactly as it does in your account.

The Checks Worth Running First

Before touching any code:

Is the site status "Ready"? Check the Sites page in AdSense. A site still being reviewed will not serve ads regardless of how correct the code is.

Have you waited long enough? Ads usually appear within a few minutes, but it can occasionally take up to an hour. Judging a fresh installation after two minutes is the most common false alarm.

Is an ad blocker running? Test in a private window with extensions disabled. This catches a surprising share of "my ads disappeared" reports.

Are you looking at a cached page? If your host or CDN caches HTML, you may be viewing a copy from before the code was added. Hard-refresh, or add a query string to bypass the cache.

Is there an ad serving limit? Check the Policy Center. A limit produces exactly the symptom of widespread unfilled units.

Where to Verify Any of This

Every behaviour described above is documented by Google in the pages linked below, including the data-ad-status values and the CSS approach. Google also publishes an interactive troubleshooter that checks your specific account for serving issues — worth running before making changes.