Google Ads is not one advertising product. It is several, each reaching people in a different context, and choosing the wrong one is a common and expensive mistake. This lesson covers what each type is for.
Names drift, purposes do not
Campaign type names change. Google has renamed and merged types more than once — Discovery became Demand Gen, and other consolidations have happened over the years. What each category does has been far more stable than what it is called. If a name here does not match what you see, look for the type serving the same purpose.
| Type | Where the ad appears | The person is… |
|---|---|---|
| Search | Search results, as text ads | Actively looking for something now |
| Display | Banner ads across millions of websites | Reading something else entirely |
| Video | YouTube and video partners | Watching something |
| Shopping | Product listings with image and price in results | Looking to buy a specific product |
| Performance Max | Automated across all of the above | Anywhere Google decides |
| Demand Gen | Feeds — YouTube, Discover, Gmail | Browsing, not searching |
Search ads appear when someone types a query. This is the fundamental difference from every other type: the person is already looking for what you sell. That makes it the most direct and usually the most expensive per click, because that intent is what everyone is bidding for.
For most businesses starting with Google Ads, Search is the sensible first campaign — the intent is clear, the results are easy to interpret, and it does not require creative production.
Display ads appear on websites across a very large network. The audience is enormous and cheap to reach; the catch is that nobody was looking for you. Click rates are far lower than Search and the traffic is generally less ready to act.
Display works best for two specific jobs: broad awareness where being seen is the point, and retargeting — showing ads to people who already visited your site. The second is by far the more reliable use, covered in its own lesson shortly.
Video ads run on YouTube. They suit demonstration, storytelling, and awareness rather than immediate action, and they need actual video production, which is a real cost to plan for.
Shopping ads show a product image, price, and merchant directly in search results. They apply to online retail specifically and require a product data feed to be set up. Where they apply, they tend to work well, because the person sees the product and the price before clicking.
Performance Max hands most decisions to Google's automation — you supply assets, a budget, and a conversion goal, and the system decides placement, audience, and format across every channel.
The trade is real. It can perform well and it reduces the work substantially. It also gives you much less visibility into what is happening and much less control when something is not working. For a small budget or a first campaign, the reduced control makes it harder to learn anything — which is why starting with Search is generally the better teacher.
Automation across these platforms improves steadily and is genuinely capable. But it optimises toward the goal you set, using the data you give it. If conversion tracking is wrong, or the goal is defined loosely, automation will efficiently pursue the wrong thing — and it will do so faster than manual campaigns would.
Work from the intent you want to reach. Someone actively searching for your service is a Search campaign. Someone who visited and left is retargeting through Display. Something that needs showing rather than describing is Video. Products with prices are Shopping. Broad discovery among people not yet looking is Demand Gen.