What Is Google Ads and How Does It Work?

How Does Google Ads Work?

Google Ads operates on an auction model. Every time someone types a query into Google Search, the system decides in a fraction of a second which ads to show and in what order. Two factors drive that decision: how much you are willing to pay per click (your bid) and how relevant your ad is to that search ( Quality Score).

The billing model is PPC — pay per click. You pay only when someone clicks your ad, not when they see it. That is what fundamentally sets it apart from billboards or TV commercials, where you pay for exposure regardless of whether anyone responded.

Where Do Google Ads Appear?

It would be a mistake to think Google Ads are only those blue links at the top of search results. The Google Ads network is far broader:

• Search ads — at the top and bottom of Google search results pages, labelled "Sponsored"
• Display Network — banner ads across millions of websites, YouTube, Gmail, and mobile apps
• YouTube ads — video ads shown before or during the content you are watching
• Google Maps — local ads that appear when someone searches for nearby businesses
• Shopping ads — product images and prices directly in search results for e-commerce

For most local businesses, Search ads and Google Maps are the most practical starting point — you reach people who are actively looking for exactly what you offer.

How Much Does Google Ads Cost?

There is no fixed price. You set your own daily or monthly budget, and Google never exceeds that limit. The cost per click varies depending on competition and industry:

• Low-competition industries (local services, tradespeople): €0.10 – €0.50 per click
• Mid-range industries (restaurants, hair salons, beauty): €0.30 – €1.50 per click
• High-competition industries (finance, dentistry, real estate): €2 – €15+ per click

A reasonable monthly minimum for testing a campaign is around €150–€300. Below that, it is difficult to gather enough data to optimise effectively. With a larger budget, results come faster and with greater precision.

Quality Score — Why It Is Not Just About Money

Google does not award the auction to the highest bidder — it rewards the advertiser with the best combination of bid and relevance. An ad that is precisely written, leads to a strong landing page, and achieves a high CTR can beat a more expensive competitor ad. That means a well-managed campaign costs less per click than a poorly managed one.

Advantages of Google Ads

• Immediate traffic — no waiting months as with SEO
• Precise targeting — keywords, location, time of day, device, and demographics
• Full measurability — every click, conversion, and cost is tracked to the last cent
• Budget control — you decide how much you spend and can pause the campaign at any time
• Remarketing — re-engage people who visited your site but did not convert
• Scalability — once a budget works, you can scale it up and grow results proportionally

Is Google Ads the Right Choice for You?

Google Ads works best for businesses where active demand already exists — when your potential customers are already searching for what you offer. Plumbers, dentists, accountants, driving schools — excellent candidates. Something entirely new that people are not yet searching for — in that case Google Ads alone is not enough; educational content is also needed.

The two most common reasons campaigns fail:

• A poor landing page — you drive traffic, but the site does not convert. The ad is fine; the page is not.
• Wrong keywords — broad keywords burn budget on irrelevant clicks. Precision wins.

For the first problem, see the guide on 10 landing page mistakes; for the second, the most important lever is negative keywords that eliminate irrelevant clicks.

If you are ready to launch a campaign or want to find out why your current campaign is not delivering results — get in touch. We run Google Ads for businesses in Serbia and the diaspora, and we show transparently what every euro brings in.