The basic idea
Retargeting, sometimes called remarketing, means showing ads to people who have already had some contact with a business. The contact might be a visit to a website, a look at a particular product, a started but unfinished purchase, a video watched or an interaction with a social profile. The business wants to remind these people about it, on the theory that someone who showed interest once may be more likely to act than a stranger.
This article is general information. The rules around tracking and consent differ by country and platform, so check what applies where you operate.
How it works in outline
The details vary, but the usual steps are as follows.
- A small piece of code, often called a pixel or tag, is added to a website or app, or the business uploads a list of contacts.
- When someone visits, the tool records that visit, typically using cookies or similar identifiers, or matches the contact to an account.
- The visit places the person in a group, such as “looked at shoes in the last 14 days.”
- The business creates an ad aimed at that group.
- The ad system shows the ad to matching people as they use the service.
How well this works depends on matching. Matching is imperfect: people use several devices, clear their cookies, or block tracking, so many real visitors never appear in the group, and some people may be included by mistake. Changes to browsers, operating systems and privacy rules have also made matching less complete than it once was.
Why businesses use it
The reasoning is understandable. Many people do not act on a first visit. They might be comparing options, waiting for payday or just got distracted. A reminder can help someone who really did intend to return. Retargeting groups are also small and have shown some interest, so they can look cheaper per result than reaching strangers, although the numbers vary and nothing is guaranteed. It is one form of the audience targeting options available to advertisers.
Why some people dislike it
Reactions range from mild annoyance to real discomfort. Common objections include:
- It feels like being followed. After looking at one item, the same ad appears again and again in unrelated places, which many people find irritating or creepy.
- Surprise about tracking. Many people do not know their visits are recorded for advertising, and learn about it only when an ad appears.
- Privacy concerns. Even if the information is not tied to a name, people may be uncomfortable with a record of their browsing being used to profile them. The wider issue is covered in the explanation of data collection.
- Sensitive subjects. A reminder about something personal, such as a health topic, a financial difficulty or a gift for someone, can reveal private interests to others who see the person’s screen.
- Repetition after the need has passed. People who already bought the item, or decided against it, may keep seeing the ad.
- Pressure. Constant reminders can feel like nagging and can push people toward decisions they would rather make calmly.
Others see retargeting as a fair trade for free services or even as useful. Views differ, and it is reasonable for a business to take both groups seriously.
The regulatory and platform picture
In many places, laws and guidance require notice or consent before certain kinds of tracking, and some categories of data are restricted. Browsers and operating systems have introduced controls that limit tracking by default or let people opt out, and platforms have adjusted what advertisers can do. The general direction of oversight is discussed under platform regulation. Because requirements change and differ widely, a business should read current guidance and the terms of each ad service before using these tools, and be honest in its privacy notice about what it collects.
Using it more considerately
If you decide to use retargeting, some practices lower the risk of annoying people:
- Cap the frequency. Limit how many times one person sees the ad per day or week.
- Set a short window. Stop showing the ad after a reasonable time, such as a couple of weeks, instead of indefinitely.
- Exclude those who already converted. Remove customers who have bought from the group.
- Avoid sensitive topics. Do not retarget on pages that reveal health, finances or other private matters.
- Vary the message. A friendly, useful reminder is better than the same image repeated.
- Be transparent. Explain your use of tracking tools in plain language and honor opt-out choices.
- Measure honestly. Some people would have returned anyway, so it is easy to overstate what the ads achieved. The notes on reading ad reports explain why credit for a sale is not always clear.
Gentler alternatives
Not every follow-up needs an ad that tracks. Options include:
- Asking permission for email or messages. Offering a sign-up for updates, and sending only what people agreed to, keeps the relationship in the customer’s hands.
- Useful content. Posts, guides or answers to common questions give interested people a reason to come back voluntarily.
- Contextual advertising. Showing an ad because of the topic someone is viewing at that moment, not because of their history.
- Broad ads with a clear message. Reaching a wider group without tracking individuals.
- Good service and reviews. Satisfied customers and honest customer feedback often bring people back without any ad.
- Direct conversation. For small shops, answering questions promptly in direct messages can win back an undecided shopper better than a banner.
Weighing it up
Retargeting can be a legitimate and sometimes effective tool, but it carries real costs in goodwill and trust. A fair test is whether you would be comfortable explaining to a customer exactly how and why they were shown an ad. If the answer is yes, and you have limited frequency and respected their choices, you are on safer ground. If the answer is no, a gentler approach is probably worth the extra effort.