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Retargeting explained: turning window-shoppers into buyers

Someone walks past your shop on Rundle Street, stops, has a proper look in the window, and keeps walking. You'd never think twice about it. But if that same person spent two minutes on your website, read your prices, and left — you'd probably write them off as a waste of a click.

They're the same person. And in both cases the sensible move is the same: give them another chance to come back. Online, that's retargeting, and it's the closest thing small-budget advertising has to a free lunch.

What retargeting actually is

Retargeting shows ads only to people who have already had some contact with your business — visited your website, watched your video, opened your Instagram profile, or landed on your booking page and then bailed.

That's the whole idea. Everything else in advertising is about finding strangers. This is about finishing a conversation you already started.

It matters because of a number that surprises most business owners the first time they see it: the overwhelming majority of people who visit your website leave without doing anything at all. They weren't unimpressed. They were mid-coffee, on a bus, comparing you against two others, or waiting to ask their partner. They just needed a second look.

Retargeting isn't about convincing anyone. It's about being visible again at the moment they're finally ready to act — which is almost never the first visit.

The mechanics, minus the jargon

To retarget people, the platform has to know they visited. That's what a pixel or tag is: a small snippet of code on your website that tells Meta or Google "this person was here, on this page". You install it once, and from then on the platform quietly builds a list you can advertise to.

Two honest limits, because nobody selling you this will mention them:

  • The lists are leakier than they used to be. Privacy changes across iPhones and browsers mean a chunk of your visitors won't be trackable at all. Your audience will be smaller than your traffic figures suggest, and that's normal.
  • Consent isn't optional. If you're tracking visitors, your privacy policy needs to say so, and a cookie notice is the standard way to handle it in Australia. Get this bit right at the start rather than retrofitting it later.

None of that stops retargeting working. It just means the numbers you see are a floor, not a full picture.

A starter setup: three audiences, that's it

Most retargeting advice immediately drowns you in fourteen overlapping segments. You don't need them. Three audiences will cover almost every small business in Adelaide.

AudienceWho's in itWhat to show them
Warm browsersAnyone who visited your site in the last 30 daysA reminder of what you do, plus proof — a review, a result, a photo of real work
High intentPeople who hit a pricing, booking or contact page but didn't finishYour clearest offer and one specific reason to act now
Social engagersAnyone who watched a video or interacted with your page or profileSomething lighter — a useful tip, a behind-the-scenes look, a first invitation

The one non-negotiable: exclude people who've already bought or enquired. Nothing torches goodwill faster than chasing someone with an ad for the thing they paid you for last Tuesday.

What to actually put in the ad

A retargeting ad has a job that's completely different from an ad aimed at strangers. You don't need to explain who you are — they know. You need to remove whatever stopped them.

Usually it's one of three things: they weren't sure it was worth the money, they weren't sure you were any good, or they simply forgot. So handle those directly. Show the price if price was the hesitation. Show a review or a finished job if trust was. And if it was just life getting in the way, a plain "still thinking about it? here's the link" does more work than anything clever.

Keep it short and keep it specific — the same hook-offer-CTA structure we walked through in how to write a Facebook ad that actually gets clicks, just with the introductions skipped.

What to spend, and when it goes wrong

Retargeting will look like your best-performing campaign. The cost per enquiry will be lower than everything else and the temptation is to shovel money at it. Resist that.

Your retargeting audience can only ever be as big as the pool of people you've reached. Starve the campaigns that fill the pool and your cheap audience quietly dries up. A sensible split for a small budget is roughly a fifth going to retargeting and the rest to reaching new people — which is exactly how we carve up the numbers in Meta ads on a $500/month budget.

The other things that go wrong, in order of how often we see them:

  1. No frequency cap. Left alone, the platform will happily show the same person your ad thirty times a week. Cap it. Two or three impressions in a week is plenty.
  2. The window's too long. Someone who looked at your site in March does not need chasing in September. Thirty days suits most service businesses; stretch it only if you sell something people genuinely deliberate over.
  3. One ad, running forever. The same image for four months stops being a reminder and starts being wallpaper. Swap the creative every few weeks.
  4. Retargeting to a bad landing page. If the page didn't convert them the first time, sending them back to it twice won't help. Fix the page.

Where it fits in the bigger picture

Retargeting is a multiplier, not a strategy. It makes every other bit of marketing work harder — the SEO, the social posts, the search ads — because it catches the people those channels bring in and gives them a second chance to act.

Which also means it's rarely the first thing to set up. If you're still deciding where your first advertising dollar should go, start with Facebook vs Google Ads: which should you start with, get one channel bringing people in, then turn retargeting on behind it.

Do it in that order and the window-shoppers stop being a wasted click. They become the cheapest customers you'll get all year.

Retargeting questions, answered

Done badly, yes — the same ad shouting at someone forty times in a week feels like being followed home. Done properly it's barely noticeable: a couple of useful reminders over a fortnight, then it stops. Cap your frequency, keep the window short, and exclude people who've already bought. The people who find retargeting unbearable are almost always seeing a campaign with no frequency cap and no exclusions.

As a rough starting point, somewhere around fifteen to twenty-five per cent of your total ad budget. It's tempting to put more in because the cost per result looks so good, but retargeting can only speak to people you've already reached — spend too much here and you starve the campaigns that fill the pool in the first place. If your audience is too small to spend even that, put the money into reaching new people instead.

You need enough people to build a usable audience, and the platforms won't deliver to a list of twelve. As a rule of thumb, a few hundred website visitors a month is where retargeting starts being worth the setup. Below that, widen the window to ninety or a hundred and eighty days, or lean on social-engagement audiences — everyone who watched a video or interacted with your page — which are usually much bigger than your website traffic.

Want your window-shoppers followed up properly?

We'll get the tracking installed the right way, build the audiences, cap the frequency so nobody feels hounded, and keep the creative fresh. It's part of every lemonlolly paid ads setup.

Get your retargeting sorted →
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