Google Ads is Google's online advertising system that lets businesses pay to show ads on the search results page, on partner websites, on YouTube and inside mobile apps. Most of it runs on a Pay-Per-Click (PPC) model, meaning you only pay when someone actually clicks your ad rather than paying a lump sum and hoping for the best. This article walks through how Google Ads works, how it differs from SEO, the campaign types available, and how you can use its data to analyse your business's target audience.
What is Google Ads and how does it work?
Google Ads (formerly Google AdWords) is the platform where you buy ad space across Google's properties. The placement people know best sits at the top of the search results page, marked with a "Sponsored" label, but your ads can also appear on websites in the Google Display Network, in videos on YouTube, in the Shopping tab and inside mobile apps.
Behind the scenes it runs as an auction. Every time someone searches, Google looks at which ads are relevant to that query, then ranks them using the bid combined with a Quality Score that measures ad relevance, expected click-through rate and landing page quality. This matters a lot, because it means the highest bidder does not always win. A well-made ad that matches what the searcher wants can earn a better position at a lower cost per click.
As for cost, the main model is pay per click. You set your own daily budget, which can start at just a few hundred baht a day, then scale up once you see which campaigns make money. There is no minimum contract, and you can stop whenever you like.
How is SEO different from Google Ads?
This is the question almost everyone asks when they start doing online marketing. Both get your business onto the search results page, but the routes there are completely different.
- Speed Google Ads can put you on page one within a day of campaign approval, while SEO usually takes three to six months or more before rankings move in a meaningful way.
- Cost Google Ads charges per click, and results stop when you stop paying. SEO is an investment in content and site structure, and the results keep working even if you pause for a while.
- Trust Some users deliberately scroll past the ads to click the organic results, because they feel those are more neutral.
- Data Google Ads tells you in detail which search terms produce sales, and that information also feeds into your SEO keyword planning.
So which one should you use, or should you use both?
If you have just launched a product, need customers this month, or are running a limited-time promotion, Google Ads is clearly the better fit. If you are playing the long game and want traffic that arrives on its own without paying per click forever, SEO is the more economical answer over time.
In practice, businesses that do well tend to combine the two. Early on, they use Ads to drive sales while collecting data on which keywords actually convert into customers. Then they take that keyword set into their SEO work to bring long-term costs down. Even once the site ranks organically, they keep Ads running to claim extra space on page one and to stop competitors bidding on their own brand name.
What does Google Ads include? The six main campaign types
Many people only think of ads on the search page, but Google Ads offers several campaign formats, each suited to a different goal.
Search: ads on the results page
The most fundamental format and usually the one with the clearest returns, because the ad appears at the exact moment someone is searching for that thing. It suits products and services people already look for, such as air-con repair, dental clinics or law firms.
Display: banners across the network
Image ads that appear on news sites, blogs and apps across the millions of placements in Google's network. This format suits broad brand awareness. Clicks cost less than Search, but purchase intent among viewers is lower too.
Video: advertising on YouTube
Formats range from unskippable six-second bumpers to longer skippable videos. You can target by interest, by the kinds of videos people watch, or by what they have searched for. It suits products that need a story or a demonstration. If this channel interests you, see our YouTube advertising service for details.
Shopping: products shown with prices
Product cards with an image, a price and a store name shown right on the results page. It works very well for e-commerce stores because shoppers see the price before they click, so the clicks you pay for come from people who have already accepted it to some degree.
Performance Max: let the system manage every channel
A campaign type that serves ads across all of Google's surfaces, including Search, Display, YouTube, Gmail and Maps, from a single campaign. You supply images, copy, video and a goal, and the system allocates budget automatically. It suits businesses that already have solid conversion tracking and want to scale.
App: promoting a mobile app
For businesses with their own app, this campaign takes your ads to people likely to install it or come back to use it, across Google Play, YouTube and the partner network.
How can Google Ads help you analyse your target audience?
The advantage that gets discussed less than sales is the data. Every baht you spend brings back information about customer behaviour, and if you know how to read it, it works almost like a small market research study for your business.
The Search Terms report: see the words customers actually type
This report shows every real query that triggered your ads, not just the keywords you set. You see what customers call your product, how they spell it and what worries them. A mattress store might find that people search "mattress for back pain" far more than "orthopaedic mattress". Insights like these feed straight back into your ad copy, landing pages and content plan.
Demographics and audience insights: learn who your real customers are
The platform reports the gender, age range, device, province and time of day of the people who click and buy. Quite often the real data contradicts what the business owner has always believed, for example assuming the core customer is in their early working years when the group that actually buys is 45 and up. Once you know that, you can shift budget toward the group that genuinely makes you money.
Remarketing lists: keep track of people who showed interest
Once the tag is installed on your website, Google builds lists of visitors in groups, such as people who viewed a product page or added to cart without paying. You can serve reminder ads to these lists, which usually deliver conversions at a fraction of the cost of finding new customers, and they also serve as the seed for reaching people who behave like your existing buyers. For a deeper look at how this works, see our remarketing service.
Summary: where should you start?
Google Ads is the tool that puts your business in front of customers at the exact moment they are looking. It starts fast, measures every baht, and offers a format for every goal, from Search focused on closing sales to video focused on building the brand. If you are just getting started, try a small-budget Search campaign for your best-selling product first, collect a month of data, then expand from there.
If you would rather skip the trial and error, or you have run ads before and watched the budget disappear without sales to show for it, the Google Ads service team at Relevant Audience can help with everything from account structure and keyword selection to campaign optimisation and reporting. Get in touch for a chat first, no strings attached.
