Remarketing (also called retargeting) lets you show ads to people who previously visited your website. Google Ads and Google Analytics manage this through audience lists, which segment visitors by behavior: cart abandoners, product page viewers, 30-day return visitors, and dozens of predefined lists. This free remarketing audience viewer helps you preview how a visitor lands in different lists, what triggers fire, and which audiences convert best.
Useful for marketers setting up Google Ads remarketing campaigns, ecommerce owners optimizing cart abandonment flows, and B2B teams building lead-nurture lists. Includes 2026 audience sizes, audience definitions, membership duration, and bid adjustment recommendations.
Enter website URL. Scan for marketing and analytics tags. See Google Ads, Facebook Pixel, GTM, more.
Verify tag installation or audit competitor tracking.
Google Analytics, Ads, GTM, Facebook, LinkedIn, etc.
Most public sites; some block CORS.
Yes, verify tags firing.
Yes, see their tracking setup.
Remarketing (or retargeting) is showing ads to people who have previously visited your website or used your app. It's one of the highest-ROI ad strategies because the audience is already familiar with your brand — conversion rates are typically 2-10x higher than cold traffic.
They're synonyms. 'Remarketing' is the Google Ads term; 'retargeting' is the Meta/Facebook term. Both mean showing ads to people who previously visited your site.
Google Ads default membership duration is 30 days for website visitors, 540 days for YouTube channel engagement, 30 days for app users. You can extend these — longer durations let you reach more people but cost more per impression.
For Display remarketing, you need at least 100 active users in a list for ads to serve. For Search remarketing, lists need 1,000+ for optimal performance. Smaller lists can still work with longer lookback windows or by combining multiple lists.
It can feel that way if overdone (showing the same ad everywhere for months). The fix: cap frequency (max 3 impressions per user per day), use clear messaging, and exclude converters (don't show cart-abandon ads to people who already bought).
The Toolzie Remarketing Viewer lets you inspect and understand remarketing and advertising tags on any webpage. Useful for digital marketers and developers auditing tracking implementations.
Google Ads remarketing, Meta Pixel, LinkedIn Insight Tag, and other common advertising tags.
To verify tags are firing correctly before launching ad campaigns, or to audit a competitor's tracking setup.
Yes — completely free with no account required.
No — it detects client-side JavaScript tags that fire in the browser.
Estimates only. Not tax, financial, or legal advice. Full disclaimer · Terms