Google Advertising: What Exactly is Chrome Blocking?
Google Chrome, following the Coalition for Better Ads' standards, blocks 12 specific disruptive ad types—four on desktop including pop-ups, auto-playing video ads with sound, prestitial ads with countdowns, and large sticky ads over 30% screen size, and eight on mobile including all pop-ups, all prestitial ads, ads occupying more than 30% of content area, and rapidly flashing animated ads—to enhance user experience by eliminating the most intrusive advertising formats.
Google has implemented stricter ad-blocking standards in Chrome, following the guidelines set by the Coalition for Better Ads. These standards aim to improve user experience by blocking the most disruptive types of ads on both desktop and mobile platforms.
What is the Coalition for Better Ads?
The Coalition for Better Ads is an alliance of companies and associations dedicated to improving the online advertising experience. They developed the Better Ad Standards based on research involving over 25,000 consumers, focusing on eliminating the most annoying and intrusive ads.
What Exactly Is Google Chrome Blocking?
Google Chrome blocks 12 types of ads: four on desktop and eight on mobile.
Desktop Ads Blocked
- 1.
Pop-up Ads
- Pop-ups that appear in front of content and disrupt the user experience are blocked.
- These are among the most commonly cited annoyances for website visitors.
- 2.
Auto-playing Video Ads with Sound
- Video ads that play automatically with sound are blocked.
- Video ads that require a click to activate sound are still allowed.
- 3.
Prestitial Ads with Countdown
- Ads that appear before content loads and force users to wait for a countdown are blocked.
- Prestitial ads without a countdown are allowed.
- 4.
Large Sticky Ads
- Sticky ads that take up more than 30% of the desktop screen and remain visible as the user scrolls are blocked.
Mobile Ads Blocked
- 1.
Pop-up Ads
- Both with and without countdowns, pop-up ads are blocked on mobile.
- 2.
Prestitial Ads
- All prestitial ads (those that appear before content loads) are blocked on mobile, regardless of countdown.
- 3.
Ad Density Higher Than 30%
- If ads occupy more than 30% of the main content portion of a mobile page, they are blocked.
- Sticky ads count toward this ad density.
- 4.
Flashing Animated Ads
- Ads that rapidly flash with changing backgrounds, text, or colors are blocked.
- Not all animated ads are blocked—only those that flash rapidly.
- 5.
Auto-playing Video Ads with Sound
- As on desktop, these are blocked on mobile.
- 6.
Postitial Ads with Countdown
- Ads that appear after a user clicks a link and force them to wait before being redirected are blocked.
- 7.
Full-screen Scrollover Ads
- Ads that sit on top of content and do not move with the page are blocked.
- 8.
Large Sticky Ads
- Large sticky ads that disrupt the user experience on mobile are blocked.
All images and quotations referenced are from the Coalition for Better Ads. Visit their site for a full breakdown of the Better Ads Standards.
What Happens to Violators?
Sites that violate these standards will be notified by Google and given 30 days to fix the issues. If violations persist after 30 days, Chrome will begin blocking all ads on the offending site. This approach gives publishers a chance to comply before facing full ad blocking.
Google Sunsets Third-Party Cookies
In addition to stricter ad-blocking, Google is also phasing out third-party cookies in 2024. This move is part of a broader effort to enhance privacy and user experience. The delay in deprecation allows Google to test its Privacy Sandbox and gives advertisers time to adapt.
Third-party Cookie Alternatives
- Google's Privacy Sandbox: Likely to become the main solution for advertising on Chrome.
- The Trade Desk’s Unified ID 2.0: Enables targeted advertising without revealing users' true identities.
- Other alternatives: Email addresses and phone numbers may be used for targeting.
- Retail media: Brands are leveraging first-party shopper data for advertising outside of Google's ecosystem.
These changes signal a shift toward a more user-friendly and privacy-conscious online advertising environment.
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