Most people who visit your website leave without doing anything. They browse a page or two, then move on, and the chances of them coming back on their own are slim. Retargeting is how businesses change that.
What Is Retargeting?
When someone visits your website, a small piece of code called a pixel notes that visit. After they leave and carry on browsing other websites, watching YouTube, or scrolling through social media, your ads follow them. That’s retargeting.
It’s sometimes called remarketing, and the two terms are often used interchangeably. The core idea is simple: instead of spending your full ad budget trying to reach people who’ve never heard of you, you direct some of that spend at people who already showed an interest. They’ve been to your site. They know your name. You just need to bring them back.
You can run retargeting campaigns through Google (via the Google Display Network and YouTube) and through Meta (Facebook and Instagram). Both platforms use tracking pixels to build an audience from your past visitors.
Why Do Most Visitors Leave Without Taking Action?
The vast majority of first-time website visitors leave without taking any action at all. Think about your own browsing habits. You visit a site, have a quick look, and close the tab. Life gets in the way. You weren’t ready to buy, or you needed to think about it, or something else came up. Your potential customers are no different.
That doesn’t mean they’re not interested. It means the timing wasn’t right. Retargeting gives you a second chance to reach them when they’re more ready to act.
How Does Retargeting Work?
Here’s the process in plain terms:
- Someone visits a page on your website.
- The tracking pixel, a tiny snippet of code on your site, logs the visit and drops a cookie in their browser.
- When that person later visits other websites, uses social media, or searches on Google, your ads appear.
- They see your brand again, remember your business, and are more likely to come back and get in touch.
The technical setup sits inside Google Ads or Meta Ads Manager, and once your pixel is live, the audience builds itself automatically.
One important point for UK businesses: retargeting must comply with GDPR. Your website needs a proper cookie consent banner, and you can only target users who’ve agreed to tracking. The ICO (Information Commissioner’s Office) sets out clear requirements for cookie consent under PECR and UK GDPR, and the regulator has been actively contacting UK websites over non-compliance. Get your cookie setup right before you launch any retargeting campaign.
Google Ads also requires Consent Mode v2 to be active for any campaigns targeting users in the UK and EU. Without it, your campaigns either won’t run or will be severely limited.
Is Retargeting Worth It for UK Businesses?
Retargeting ads consistently outperform standard display ads when it comes to click-through rates and conversions, because you’re reaching people who already know your brand. Your budget goes further because you’re not starting the conversation from scratch.
For service businesses, professional firms, or any UK business with a longer sales cycle, retargeting works particularly well. Someone might visit your website, spend a few days weighing up their options, and then see your ad at exactly the right moment. That reminder can be the difference between winning the enquiry and losing it to a competitor.
Cost-per-click for retargeting campaigns is generally lower than for cold-audience campaigns. Google Display retargeting typically runs at between £0.20 and £1.00 per click, depending on your industry and targeting setup. That compares favourably with cold search traffic, where competition for keywords pushes costs much higher.
What Types of Retargeting Can UK Businesses Use?
There are several approaches, and the right one depends on your business and your goals.
Website retargeting is the most common type. It targets people who visited specific pages on your site. You can show different ads to someone who viewed your pricing page versus someone who only visited your homepage, which keeps the message relevant to where they are in their decision.
Search retargeting, known as RLSA (Remarketing Lists for Search Ads), lets you adjust your Google Search bids for people who’ve already visited your site. If someone searches for your type of service again after browsing your website, you can bid higher to make sure your ad appears first.
Social media retargeting through Facebook and Instagram puts your ads in front of previous visitors while they’re scrolling through their feeds. It tends to cost less than search advertising and works well for businesses where buying decisions take a little time. Used alongside a well-planned social media marketing strategy, it keeps your brand visible at multiple points in the decision-making process.
Email list retargeting takes a different angle. It uses email addresses you already hold to match against social media users, letting you show ads to existing contacts or past customers. Useful for re-engagement campaigns or promoting a new service to people who already know your business.
What Are the Risks to Watch Out For?
Retargeting done badly irritates people. If you show the same ad to the same person fifteen times in a single week, you’re not reminding them of your business. You’re annoying them. Setting frequency caps (a limit on how often one person sees your ad in a given period) is one of the most important settings in any retargeting campaign, and it’s one of the most commonly skipped.
Ad relevance matters too. Showing someone an ad for a service they already bought or enquired about wastes your budget. Splitting your audience by what they actually looked at on your site makes campaigns far more effective and far less likely to frustrate people.
As for legal compliance, the ICO has been actively enforcing cookie rules across UK websites. Get your consent setup correct from the start, and check that your cookie banner actually works the way it should.
How Do You Get Started With Retargeting?
Getting started is simpler than most business owners expect.
First, get your tracking pixels in place. You’ll need the Google Ads remarketing tag and/or the Meta Pixel added to your website. A developer or your web management provider can do this in under an hour.
Second, build your audience lists. Start with anyone who visited your site in the last 30 days. Once that’s up and running, you can build more specific lists: people who visited your contact page but didn’t submit the form, or visitors who spent more than two minutes on your site.
Third, create your ads. They don’t need to be complicated. A clean image, a clear message, and a direct call to action are enough to start. For Google Display you’ll need a range of image sizes; for Meta, a single image or short video works well.
Our PPC services cover the full process: pixel installation, audience setup, ad creation, and ongoing campaign management. If you’d rather hand it to someone who runs these campaigns every day, we can take it off your plate entirely.
Frequently Asked Questions
Is retargeting the same as remarketing?
In most cases, yes. Retargeting typically refers to paid ads shown to previous website visitors via Google or Meta. Remarketing can also refer to email follow-up campaigns sent to existing contacts. For Google Ads and Meta Ads purposes, the two terms are used interchangeably.
Do I need a lot of website traffic to use retargeting?
You don’t need huge traffic numbers, but you need enough visitors to build a usable audience. Google requires minimum audience sizes before campaigns can run. A site receiving a few hundred visitors per month is generally enough to get started. If your traffic is very low, growing it first through search engine optimisation or paid search will make retargeting more effective when you add it later.
Is retargeting legal in the UK?
Yes, but it must be set up correctly. Your site needs a GDPR-compliant cookie consent banner, and you can only retarget users who’ve agreed to tracking. Google requires Consent Mode v2 for campaigns targeting users in the UK or EU. The ICO has been actively contacting UK businesses over cookie consent failures, so this isn’t something to put off.
How much does retargeting cost?
Costs vary by platform and the size of your audience. Google Display Network retargeting typically costs between £0.20 and £1.00 per click. Meta retargeting ranges from around £0.25 to £1.50 per click. Because you’re reaching people who already know your business, the cost per enquiry tends to be lower than campaigns targeting cold audiences.
What results should I realistically expect?
Retargeting won’t produce overnight results, but over time it keeps your brand in front of the right people at a lower cost per lead than most other ad types. Businesses with longer decision-making cycles, such as professional services or B2B companies, tend to see the strongest returns because retargeting keeps them visible while a prospect is weighing up their options.
Can I set up retargeting myself?
Yes. Installing a tracking pixel is manageable if you’re comfortable with your website’s backend. On WordPress sites, it can be added via a plugin or directly in the site header code. If you’d rather not touch the code yourself, a developer or paid ads specialist can set it up quickly and make sure everything tracks correctly from day one.
Retargeting is one of the most cost-effective tools available to UK businesses that already have a website and some traffic. It turns the people who almost became customers into a second opportunity. The setup is manageable, the costs are reasonable, and the returns make it worth doing for almost any service business. If you’d like help getting your retargeting campaigns set up correctly, get in touch with us and we’ll talk through what will work best for your business.