Remarketing shows advertising to people who have already been to your site, which makes it the cheapest paid audience most businesses have and the one most often left on default settings. The difference between a campaign that recovers sales and one that irritates people is almost entirely in the list definitions, the exclusions and the frequency caps.
Segment the lists by what the person actually did
Everyone who visited is not an audience. Someone who read one article, someone who priced a product and someone who abandoned a basket are three different people with three different messages. Build lists by behaviour and recency, set membership durations that match your buying cycle, and write a different advertisement for each. A single all-visitors list with one creative is the default and it is why most remarketing underperforms.
Exclusions matter more than targeting
Exclude people who have already converted, existing customers where the message would confuse them, job applicants, and your own staff. Cap the frequency so that one person is not shown the same advertisement dozens of times a week, which wastes budget and damages the brand more than it recovers. Agree the cap in the plan rather than leaving it to the platform default.
Privacy rules constrain what you may target on
Advertising platforms restrict building audiences around sensitive categories such as health conditions, financial hardship or other personal characteristics, and those policies apply to your lists whoever built them. Consent requirements for tracking also vary by market. Ask the agency which of your pages may not be used to build an audience at all, and expect a specific answer for a regulated category.
Measure the incremental sale, not the assisted one
Remarketing reports flatteringly because it advertises to people already likely to return. The honest test is a holdout: withhold the advertising from a share of the audience and compare. If an agency has never proposed one and the budget is material, ask why. Attribution alone will always make this channel look good.
Questions people ask about ppc remarketing services
How long should someone stay on a remarketing list?
As long as the buying cycle plausibly runs. Days for an impulse purchase, months for a considered one. Beyond that the advertising is spent on people who decided long ago.
Is remarketing annoying?
It is when the frequency is uncapped and the creative never changes. Both are settings, and both are the agency's job.
Can we remarket to people who filled in a form?
Usually yes, and usually you should exclude them from the acquisition message and show them something appropriate to their stage instead.
What is a reasonable share of budget?
Small, because the audience is small. A remarketing campaign consuming most of the budget is usually a sign that acquisition has stopped working.