A dark post — sometimes called an unpublished page post — is an ad that appears in people's feeds but is never posted to your Facebook Page or Instagram profile timeline. Advertisers use dark posts to run many creative variants, target different audiences, and A/B test without flooding their public profile with near-identical posts.
The catch is that dark posts still collect comments, and those comments are easy to overlook. Because the post is not on your timeline, you cannot just scroll your Page to find it. A buyer asking "how much?" or a scammer dropping a phishing link can sit on a high-spend dark post for days without anyone on your team seeing it.
That is exactly the gap ad comment moderation tooling closes. ROAS Shield reads comments through the Meta Graph API and maps each one back to the ad, ad set, and campaign it belongs to — including dark posts — so unpublished creative is no longer a blind spot. Spam gets hidden and buyer-intent comments get surfaced, wherever the ad lives.
If a comment cannot be mapped to a known ad (some formats make this hard), we say so honestly and flag it for manual review rather than guessing. See the FAQ for more on how mapping and moderation work together.