What Is Retargeting?

Retargeting vs. Remarketing: Is There a Difference?

In practice, no. The two terms describe the same technique and are used interchangeably across the industry. Google originally branded its version "remarketing," while "retargeting" became the more common general industry term, particularly outside Google's own products. Google has continued to evolve its own terminology: Google Ads' own help documentation notes that what used to be called "remarketing" inside the platform is now more often labeled "your data" in current account interfaces, even though the underlying mechanic, showing ads to past visitors, hasn't changed.

Meta (Facebook and Instagram) doesn't use either word in its own interface. It calls the same functionality a Website Custom Audience, built from visitors tagged by the Meta Pixel.

How Retargeting Works

1. A visitor lands on your website from any source: organic search, a social post, a paid ad.
2. A tracking tag fires. On Google, this is a Google tag; on Meta, it's the Meta Pixel. Either one drops a small piece of code that recognizes that visitor's browser.
3. The visitor leaves without converting. Most people don't buy or book on the first visit.
4. The platform adds them to an audience. Google and Meta both let you build a list of "people who visited my site" or "people who viewed a specific page but didn't submit the form."
5. Your ad follows them. As that visitor browses other websites, apps, or social feeds, your ad appears again, often showing the same offer they didn't act on.

The two platforms that matter most for a local service business are Google Ads, where a tagged visitor can be shown a display ad or a search ad the next time they look for a related term, and Meta Ads, where the same visitor can be shown a Facebook or Instagram ad built from a Website Custom Audience.

Why It Works: The Data

The core logic behind retargeting is simple: a visitor who already showed interest is a warmer prospect than a stranger. One of the earliest sizable studies to measure this, a 2010 comScore study conducted with ValueClick Media, analyzed 103 campaigns from 39 advertisers across 7 industries and found that retargeting generated the highest lift in brand search behavior of 6 placement strategies tested, a 1,046% lift in trademark search queries compared to the baseline strategy. That's a dated, foundational data point rather than a current benchmark, but the underlying mechanic it measured, warmer audiences responding more, is the same one retargeting relies on today.

The flip side of that same warm-audience logic showed up starkly when Apple made it harder to track people across apps. Apple's App Tracking Transparency framework, introduced with iOS 14.5, requires apps to ask permission before tracking a user across other companies' apps and websites, and most users decline. The business impact was immediate and public: Meta told analysts in February 2022 that the change would cost the company about $10 billion in 2022 ad revenue, because smaller, less precise retargeting audiences make it harder to find and re-show ads to the exact people who visited.

How to Set Up a Retargeting Campaign

1. Install the tracking tag. Add the Google tag (via Google Tag Manager or directly) and the Meta Pixel to every page of your site before running any campaign.
2. Build audience segments. Start simple: "all website visitors in the last 30 days" and "visitors who viewed a specific service page." Add more segments once the basics are running.
3. Exclude people who already converted. Someone who already booked a call or filled out the form shouldn't keep seeing an ad asking them to do the thing they already did.
4. Set a frequency cap. Showing the same person the same ad too many times a day wastes budget and can annoy rather than persuade.
5. Match the creative to the funnel stage. Someone who only viewed your homepage needs a different message than someone who started a form and abandoned it.
6. Set a budget and a time window. Retargeting audiences are small compared to cold audiences, so it typically needs a modest slice of total ad spend, not the majority of it.
7. Measure incremental results, not just clicks. The goal is more conversions than you'd have gotten without retargeting, not just activity on the retargeting campaign itself.

What Retargeting Costs for a Small Business

Retargeting typically runs on the same auction-based pricing as any other Google or Meta campaign, cost per click or cost per thousand impressions, rather than a separate pricing structure. Because a retargeting audience is a small, defined list rather than the entire internet, it generally requires a smaller budget than a cold prospecting campaign aimed at people who've never heard of your business. For context on what search advertising itself costs, WordStream's 2026 Google Ads benchmarks report, based on over 13,000 campaigns across 23 industries, puts the average cost per lead across Google and Microsoft Ads at $66.69. Most small businesses run retargeting as a supporting layer alongside a primary paid search or paid social campaign, not as the main budget line.

Retargeting and Privacy: What's Changed

Two changes have reshaped how much retargeting can see, and both matter for setting realistic expectations:

• Apple's App Tracking Transparency (ATT), introduced in iOS 14.5, requires apps to ask permission before tracking a user across other apps. Most users say no, which is why Meta pointed to it as a roughly $10 billion revenue headwind for 2022.
• Browser cookies are a separate, ongoing story. Google originally planned to phase out third-party cookies in Chrome, then reversed course: in July 2024, Google confirmed it would not deprecate third-party cookies as planned, instead giving users a browser-level choice. Safari and Firefox, by contrast, already block third-party cookies by default.

The practical effect for a small business: retargeting still works, but the audiences it can build are smaller and less precise than they were several years ago, particularly on mobile apps. First-party data, your own list of site visitors and past customers, matters more now than it used to.

When a Small Business Should (and Shouldn't) Use Retargeting

• Use retargeting when you already have meaningful website traffic from another source (paid search, organic, social) and most of it isn't converting on the first visit, which describes most local service businesses running any kind of ad campaign.
• Use retargeting when your buying decision takes more than one visit to make, which covers nearly every local service purchase: a wedding venue tour, a first chiropractic appointment, a plumbing quote.
• Don't lead with retargeting if you have little to no existing traffic yet. Retargeting re-engages people who already showed up; it can't create demand on its own. The U.S. Small Business Administration's guidance on local marketing makes a related point: local marketing works best when it's targeted and tested with a defined budget first, then expanded once it's proven, rather than spread across every tactic at once.
• Don't skip the exclusion list. Retargeting people who already converted wastes budget and can read as tone-deaf to a customer who already booked.

Frequently Asked Questions

Related Reading

• Google Ads vs. Facebook Ads: Which Is Better in 2026?
• What Is a Marketing Funnel? Stages, Models, and How to Build One