How do Google Ads work? Every search triggers a real-time auction. Google ranks eligible ads by ad rank, which blends your bid with the quality of your ad and landing page, and that rank sets both your position and your price.
Here’s what happens in the split second after someone hits enter. Google scores every eligible ad that wants that search and fills the slots before the search results page finishes loading. You pick the keywords and set the bid. Google judges your ad and the page it sends people to. On search, you pay only when someone clicks.
The part worth your time is stranger: two advertisers can bid the exact same amount on the exact same keyword and pay different prices. At The Influence Agency (TIA), that gap is where Google Ads management earns its keep. It’s also where most paid media budgets leak.
If you’re weighing Google Ads or already running campaigns that cost more than they should, this breakdown shows you what’s deciding the price.
What is Google Ads?
Google Ads is Google’s self-serve advertising platform, formerly known as Google AdWords until 2018. Advertisers bid to place ads across Google Search, YouTube, Gmail, Maps, Shopping, and the Display Network, paying per click, impression, or view.
What you’re buying isn’t space. It’s a ticket into an auction, and a new one fires every time someone types a query, opens a YouTube video, or loads a site carrying Google’s display inventory. Each one is over in milliseconds.
Search and Shopping ads charge only when someone clicks, a model known as cost per click (CPC). You set a daily budget and a bidding strategy in your Google Ads account, and Google spends against it until you tell it to stop. The day you stop, you vanish. That’s the line between paid search and search engine optimization (SEO).
How do Google Ads work? The auction explained
Google Ads works through an auction that determines two things at once: whether your ad shows and how much you pay. Both come from ad rank, which is calculated based on your bid, ad and landing page quality, and search context.
Here’s where most explanations of the Google Ads auction go wrong. Your Google Ads quality score, the rating out of 10 in your account, isn’t an auction input. Google calls it a diagnostic. What competes is a fresh read of the three signals behind it, measured on every query:
- Expected click-through rate. How often Google predicts people will click your ad for that search, based on past performance.
- Ad relevance. Whether your ad copy answers the search intent behind the query or just happens to share a word with it. An ad for "accounting software" served on "free invoice template" is a mismatch you'll pay for.
- Landing page experience. Load speed, mobile usability, and whether the page delivers what the ad promised. Sending every click to your homepage is the fastest way to hand money to competitors.
Picture two advertisers on the same keyword. One bids $4, with copy that answers the query and a fast-loading page. The other bids $8 on generic headlines pointing at a homepage. The $4 advertiser can still rank higher and often pays less than their maximum bid, because Google charges only what it takes to beat the ad below.
Google doesn’t publish the full formula, but the direction hasn’t changed: relevance buys rank that money alone can’t. Your bid gets you into the room. Quality decides how far your money goes once you’re in it, and minimum ad rank thresholds mean a weak ad can miss out even with no competition.
Bid alone is how advertisers overpay for second place.
Image source: Unsplash
What are the types of Google Ads campaigns?
The four main types of Google Ads are search, display, video, and shopping. Each reaches people at a different stage of deciding, and because a Google Ads campaign runs one type at a time, the type you pick decides who you’re paying to reach.
- Search network ads are the text ads at the top and bottom of Google search results and on Google’s search partner sites, which together make up the Search Network. They’re the only format in which someone tells you what they want before you spend anything. That intent is why they cost the most per click.
- Display ads are image ads and banners across the Google Display Network, best used for remarketing, which shows ads to people who visited your site and left. Google is moving Display campaigns into Demand Gen, so new ones will eventually be built there. For buying display beyond Google’s network, see how programmatic compares with pay-per-click (PPC).
- Video ads run on YouTube as skippable in-stream, bumper, and in-feed ads. You can reach your target audience by what they’ve searched for on Google, not just by who they are.
- Shopping ads show the product itself: image, price, and store name. They pull from your product feed in Google Merchant Center, where retailers upload their catalog, instead of from keywords you wrote. That makes feed quality and campaign quality the same thing.
Three automated campaign types sit on top:
- Performance Max runs a single campaign across all of Google’s channels, trading control for reach.
- Demand Gen covers YouTube, Shorts, Discover, Gmail, Maps, and the Display Network.
- App campaigns drive installs across Search, Google Play, YouTube, and partner apps.
Spotting when Performance Max is taking credit for sales your branded search would have won anyway is what our Google Ads team handles day to day.
What are some Google Ads examples?
Google Ads examples are easy to spot once you know where to look: sponsored text results on a search, banners that follow you after a site visit, YouTube pre-rolls, and product listings with prices attached.
| Format | Example |
|---|---|
|
Search ads |
Search “emergency plumber near me” and text ads sit under a Sponsored label, often below Local Services Ads that charge per lead instead of per click. That top spot is prime real estate, and plumbers bid like it, because whoever lands it gets the call. Someone with a burst pipe hires the first plumber they find. |
|
Display remarketing |
Browse running shoes on a retailer’s site, leave, and watch them follow you onto a news site in a banner. That’s display remarketing: the retailer added you to an audience list the moment you viewed the product page. |
|
Video ads |
Search "best CRM for small business" on YouTube and a 15-second pre-roll runs before the review video loads. That’s a video ad targeted by what you just searched. |
|
Shopping ads |
Search “wireless earbuds” on Google and the top of the page fills with product photos and prices. Those are Shopping ads, pulled from retailers’ product feeds rather than keywords. |
Each of those ads was picked by an auction nobody watched happen.
Google Ads vs Facebook ads: Which should you use?
Google Ads captures demand that already exists, while Facebook ads create it. On Google, people tell you what they want by searching. On Facebook and Instagram, which both run on Meta’s ad platform, you reach people before they start looking.
With Google Ads, someone was actively searching. They named the problem, often the solution, sometimes your competitor. You're competing for a decision already in motion, which is why search converts faster and costs more per click.
Paid social on Facebook and Instagram has to manufacture that demand. Nobody opens Instagram to buy a mattress. You're interrupting a scroll with something good enough to stop it, reaching people before they think of themselves as buyers. The trade-off: cheaper clicks, a longer path to purchase, and more riding on your ad creative.
Search makes more sense when:
- Your category already has search volume
- The purchase is urgent, like repairs or legal help
- You sell B2B and need to be present at the research stage
Meta ads make more sense when:
- Your product is visual and sells better in video
- You're launching a category nobody searches for yet
- Search CPCs have outrun your margins
Most programs that work run both. Meta builds the audience that later searches for you by name, and branded search is usually the cheapest inventory you'll buy. Run them in isolation, and you'll pay Meta to create demand someone else captures.
Image source: Unsplash
How much do Google Ads cost?
Google Ads cost as much as you set in your ad spend, because Google has no minimum. The price of each click is determined by the auction, so it varies widely by keyword and industry. Legal and insurance keywords cost far more per click than quiet niches, because you’re bidding against what that click is worth to your best-converting competitor.
For realistic budgets and what management costs, see the FAQ on our Google Ads services page.
Frequently asked questions
Key takeaways
What Google Ads strategy wins the auction?
A winning Google Ads strategy comes down to what Google scores on every search: how well your ad matches the query, how well your landing page delivers, and how much you can trust your conversion data.
Knowing how Google Ads work is the easy part. The hard part is spotting which search terms burn budget on the wrong intent and which landing pages quietly inflate every click, all measured against a single source of truth for conversions, since Google Ads and Google Analytics count them differently.
That’s the work. Bidding alone makes you a rank amateur.
How do Google Ads work when someone’s steering them? At The Influence Agency, our Google Ads specialists handle keyword research, bidding, and landing pages, and our paid media team runs Meta and other channels alongside search as a single budget.
Google gives the top spot to the ad it expects to earn the most from. Every weak signal you leave in place is a discount to the competitor right below you. Tell us what you’re spending, and we’ll tell you where it’s going.
Written by
Ryan Stephenson
Associate Director of Paid Media
Ryan is the Associate Director of Paid Media with an extensive 15+ year background in paid search, data analysis, and digital advertising. When Ryan's not working or parenting, you can likely find him skiing, camping, traveling, or seeking new and exciting foods to cook or sample. You can follow him on LinkedIn