Google Ads remarketing

Why remarketing works so well

Someone visited your site. They read your pricing page. They left. That person is 2-3x more likely to convert than a stranger who has never heard of you. Remarketing puts your ads in front of them again — on other websites, YouTube, Gmail, and even back in Google search results.

The cost per conversion on remarketing is typically 50-70% lower than cold traffic campaigns. These people already know your brand, already understand your product, and already showed intent. You are not convincing them from scratch — you are reminding them to finish what they started.

How to set it up

Step 1: Install the Google Ads tag. Add the global site tag to every page of your website. If you already have Google Analytics linked to Google Ads, you can use that instead. The tag needs to fire on every page — not just your homepage.

Step 2: Create audience lists. Go to Tools > Audience Manager > Audience lists. Start with these three lists:

• All website visitors (30-day window)
• High-intent page visitors — pricing page, checkout page, demo request page (7-day window)
• Converters — people who hit your thank-you or confirmation page (use this as an exclusion list)

Step 3: Wait for list minimums. You need 1,000 users on a list before Google will serve ads to it. For display that usually takes a few days. For RLSA (search remarketing) it is also 1,000.

Step 4: Build your campaign. Create a display remarketing campaign targeting your "all visitors" list, excluding converters. Set a daily budget — even $10-20/day is enough to start. Set frequency capping (more on that below).

Audience durations that actually work

30-day window for most businesses. This covers the typical consideration period for products under $500.

7-day window for high-intent pages (pricing, checkout, demo request). These visitors are hot. If you do not reach them in the first week, the moment has probably passed.

90-day window for high-ticket items — enterprise software, real estate, B2B services with long sales cycles. These purchases take time and multiple touchpoints.

Create overlapping lists with different durations so you can adjust messaging. Days 1-7: urgency-focused ads ("Still deciding? Here is 10% off"). Days 8-30: social proof ads (testimonials, case studies). Days 31-90: broad brand awareness.

Frequency capping: the line between helpful and annoying

Cap at 3-5 impressions per user per day. More than that annoys people and wastes money. We have seen click-through rates drop by 50% when frequency exceeds 7 impressions per day — people start ignoring your ads entirely or actively resenting your brand.

Google defaults to no frequency cap, which means one person could see your ad 30+ times in a day. Always set a cap manually. Start at 5 per day, then drop to 3 if you see diminishing returns.

RLSA: the most underrated feature in Google Ads

Remarketing Lists for Search Ads (RLSA) lets you bid higher on search ads for people who have already visited your site. This is different from display remarketing — you are not showing banner ads on random websites. You are adjusting your search campaigns to treat past visitors differently.

These people convert at 2-3x the rate of cold traffic. If your normal bid strategy has a max CPC of $5, bid $8-10 for RLSA traffic. You will pay more per click but your conversion rate more than compensates.

RLSA also lets you bid on broader keywords for past visitors. You might not bid on the generic term "CRM software" for cold traffic because it is too expensive. But for someone who already visited your site and is now searching "CRM software"? That is worth bidding on. They already know you — they are comparing options.

To set up RLSA: add your remarketing list to an existing search campaign in observation mode with a +50% to +100% bid adjustment. Or create a dedicated RLSA campaign with broader keywords and your remarketing list in targeting mode. Both approaches work — the first is simpler, the second gives you more control.

Dynamic remarketing for e-commerce

If you sell products online, dynamic remarketing shows the exact items someone viewed — with current pricing and availability. A visitor who looked at a specific pair of running shoes sees an ad for those exact shoes, not a generic brand ad.

Dynamic remarketing requires a product feed connected to your Google Ads account (through Google Merchant Center for e-commerce businesses). The setup is more involved, but the results are significantly better — dynamic remarketing typically outperforms standard display remarketing by 2x or more on ROAS.

Common mistakes to avoid

Not excluding converters. If someone already purchased, stop showing them acquisition ads. Create a converter list and exclude it from every remarketing campaign. Use separate campaigns for upselling.

One list for everyone. A homepage bouncer and a pricing page visitor have completely different intent levels. Segment your lists and tailor your messaging. Pair this with proper audience targeting for the best results.

No frequency cap. Google defaults to unlimited impressions. This burns budget and annoys users. Set a cap from day one.

Ignoring RLSA. Most advertisers only think of remarketing as display ads. RLSA on search campaigns is where the real ROI lives — higher conversion rates with intent-driven traffic.

How Fullrun handles remarketing

Fullrun sets up segmented remarketing lists based on your site structure and conversion tracking data. It configures duration windows matched to your sales cycle, applies frequency caps, excludes recent converters, and builds RLSA campaigns for your search ads. As performance data accumulates, it adjusts bids automatically — spending more on high-intent segments and pulling back on underperformers.