Intrusive interstitials: is there a Google penalty?

Intrusive interstitials, explained

Google describes intrusive interstitials and dialogs as page elements that obstruct users' view of the content, usually for promotional purposes. Interstitials cover the whole page; dialogs cover part of it. Typical cases are a newsletter popup that covers the article on load, an app-install screen and a full-page ad. Google says they "make it hard for Google and other search engines to understand your content, which may lead to poor search performance", and that visitors who find a site hard to use are unlikely to return, including through search.

Is there a penalty? Not a manual one: Search Console's manual actions list has no interstitial action. There was a ranking signal, though.

In August 2016 Google announced that from January 10, 2017, mobile pages whose content isn't easily accessible when a searcher arrives "may not rank as highly", as one signal among hundreds. In April 2023 it said of the old page experience signals (Core Web Vitals, mobile-friendly, HTTPS, no intrusive interstitials) that "not all of these may be directly used to inform ranking", though all align with success in search. See page experience for where that stands now.

Instead of a full-page interstitial, use a banner that takes up a small fraction of the screen: Safari's Smart App Banners, Chrome's in-app install experience, or a slim HTML bar you can reuse for newsletter prompts. Use well-supported plugins or libraries for dialogs. And avoid the two mistakes Google names: obscuring the entire page, and redirecting people to a separate page for consent or input.

Mandatory interstitials, such as a casino site's age gate, are exempt from the guidance. Google still suggests overlaying the dialog on the content so some of it can be indexed, not redirecting every request to one consent page (that leaves only that page in results), and letting verified Googlebot requests skip an adult-content age gate. Google's 2016 announcement also said legally required notices (such as for cookie usage), login dialogs for non-indexable content and small, easily dismissible banners weren't affected, if used responsibly.

To test, open your key pages on a phone in a private window and note everything that appears before you touch the screen. A cookie banner that pushes the page down instead of overlaying it can add layout shift.

Why it matters for founders

Growth playbooks push entry and exit-intent popups. On a phone, a full-screen popup on first load can lose the visitor your content just won. Google has no manual action for it, but says intrusive dialogs make it hard for search engines to understand your content, and visitors less likely to return.

Example

Your blog shows a full-screen newsletter modal two seconds after load on mobile. You replace it with a slim sticky bar and an inline signup box after the third paragraph. Visitors and Googlebot both reach the article first.

Common mistakes

• Full-screen popups on first load on mobile.
• Redirecting visitors to a separate page for consent or sign-in before they can see the content.
• Cookie banners that push the page down instead of overlaying it.
• Age gates or consent walls that stop Googlebot reaching the content.
• Treating it as a penalty to recover from. There is no manual action and no report to clear; fix the popup and move on.