Here’s a stat that should reshape how you think about your ad spend: the average website converts between 1-3% of visitors on their first visit. That means 97-99% of everyone who clicks your ad leaves without taking action. Remarketing is how you turn that lost traffic into a second — and third — chance to earn the sale.
After two decades running paid search for businesses across industries, remarketing remains one of the highest-ROI tactics available, especially for higher-ticket services like legal, medical, and automotive.
What Is Remarketing?
Remarketing (sometimes called retargeting) lets you show targeted ads to people who have previously visited your website. When someone lands on your page, a cookie or pixel fires and adds them to an audience list. You then bid to show them ads across Google’s Display Network, YouTube, Search, Gmail, and more as they browse elsewhere online.
The key advantage: these people already know you exist. They’ve shown intent. Your remarketing ads are reminders, not cold introductions.
Types of Remarketing in Google Ads
| Type | How It Works | Best For |
|---|---|---|
| Standard Remarketing | Show ads to past visitors on Display Network | Brand awareness, re-engagement |
| Dynamic Remarketing | Show ads featuring specific products/services viewed | Ecommerce, specific service pages |
| Remarketing Lists for Search (RLSA) | Adjust bids for past visitors searching on Google | High-value, high-intent customers |
| Video Remarketing | Target YouTube viewers who engaged with your channel | Brand-building with warm audiences |
| Customer Match | Upload email lists and target those users | CRM-based re-engagement |
Setting Up Your Remarketing Audiences
Step 1: Install the Google Ads Tag
Add the global site tag to every page of your site, or use Google Tag Manager (preferred). This is what fires the cookie that builds your audience lists. Without it, you have nothing to remarket to.
Step 2: Create Meaningful Audience Segments
Don’t just remarket to “all website visitors.” Build segments that reflect intent level:
- All visitors (30 days) — broadest, lowest intent
- Service/product page visitors — mid intent, showed category interest
- Cart abandoners / form starters — high intent, almost converted
- Blog readers — researching, longer sales cycle
- Converters (past 90 days) — exclude from acquisition campaigns; target for upsell
Step 3: Set Appropriate Membership Duration
How long someone stays in your audience depends on your sales cycle. For a quick-decision service like a car wash, 7 days is enough. For a legal case or a medical procedure, 90-180 days makes sense. Match the duration to your customer’s decision timeline.
RLSA: The Most Underused Remarketing Tactic
Remarketing Lists for Search Ads (RLSA) let you bid differently when a past visitor searches your keywords again on Google. This is incredibly powerful. Someone who visited your pricing page last week and is now searching “Google Ads agency San Diego” is far more valuable than a first-time searcher. You can bid 50-100% more aggressively for them — and you should.
Setup: In your Search campaigns, go to Audiences and add your remarketing lists. Set bid adjustments: +50% for page visitors, +100% for form starters.
Display Remarketing Best Practices
- Frequency capping — Limit to 5-7 impressions per day per user. Showing your ad 30 times a day is creepy and wastes budget.
- Multiple ad sizes — Create at least 3-4 banner sizes: 300×250, 728×90, 160×600, and responsive display ads.
- Refresh creative — Rotate new creative every 30-45 days to avoid banner blindness.
- Exclusions — Exclude converters from your remarketing campaigns so you’re not paying to serve ads to people who already bought.
What to Say in a Remarketing Ad
Your message should acknowledge (implicitly) that they’ve been here before:
- “Still looking for [service]? We’re here.”
- “You visited — here’s an offer to come back.”
- Introduce a new piece of social proof they didn’t see on the first visit
- Time-sensitive offer to create urgency (only if real)
Remarketing and Conversion Tracking Work Together
To exclude converters and optimize remarketing properly, your conversion tracking must be working. If you haven’t set that up yet, read my guide on Google Ads conversion tracking setup before launching any remarketing campaigns.
Realistic Expectations
Remarketing display campaigns typically convert at 2-5x higher rates than cold traffic Display campaigns, at lower CPCs. For Search RLSA, expect 15-40% higher conversion rates from past visitors vs. new users. These aren’t guaranteed numbers — they’re averages from real accounts across the industries I manage. Your results depend on offer quality, audience size, and ad creative.
Remarketing isn’t a magic switch. It’s a system. Set up your audiences correctly, write intentional ad copy, exclude your converters, and cap your frequency. Done right, it’s one of the most cost-efficient parts of your Google Ads strategy. For a full picture of how it fits into your paid search account, check out my 1-hour Google Ads audit guide.
Frequently Asked Questions
What is remarketing in Google Ads?
Remarketing lets you show ads specifically to people who previously visited your website. When a user visits, a cookie is added to their browser. Google then identifies that user across the web and shows your ads on the Display Network, YouTube, Gmail, and in Google Search results via RLSA. It’s one of the highest-ROI tactics in digital advertising because you’re re-engaging an audience that already knows you and showed enough interest to visit your site.
How do I set up a remarketing audience in Google Ads?
Install the Google Ads remarketing tag (or use Google Tag Manager) on all pages of your website. Once the tag fires on enough pages, Google creates an ‘All Website Visitors’ audience automatically. You can create more specific audiences: users who visited specific pages, users who spent more than X minutes on site, or users who abandoned checkout. Audiences populate within 24-48 hours and require a minimum of 100 users before they can be used in Display campaigns.
What’s the ideal remarketing window?
Depends on your sales cycle. For impulse-purchase ecommerce, a 7-30 day window captures most shopping recency. For high-consideration services like legal, medical, or home remodeling, I use 60-90 day windows because the decision takes longer. I build multiple audience lists with different windows (7-day, 30-day, 90-day) and apply different bid adjustments — higher bids for the most recent visitors.
Does remarketing work for small businesses?
Yes, but you need sufficient website traffic. Google requires a minimum of 100 users in a Display remarketing list before it can be used, and at least 1,000 users for Search RLSA lists. For small businesses getting fewer than 200 visitors per month, building large enough audiences takes time. Run remarketing simultaneously with prospecting campaigns so you’re building your audience while also actively advertising to net-new visitors.
What’s the difference between Display remarketing and Search RLSA?
Display remarketing shows banner or responsive ads to past visitors as they browse websites. Search RLSA shows ads when past visitors make relevant searches on Google. RLSA is more powerful for intent capture because you’re reaching someone who already knows you AND is actively searching for your product. Display remarketing is better for awareness and brand recall. I use both: Display keeps the brand visible passively, RLSA captures the return search with priority bidding.
Looking for more Google Ads strategies? Read my guide on Google Ads for Beginners, explore my Google Ads management services, or get in touch to talk through your account. I manage paid search for 15+ active clients across San Diego.
