What Is Pay-Per-Click (PPC) Advertising?

Pay-per-click advertising — commonly abbreviated to PPC — is a model of digital advertising in which you pay a fee each time someone clicks on your ad. The most widely used PPC platform is Google Ads, which places your adverts at the top and bottom of Google search results pages, above the organic (unpaid) listings. You can also run PPC campaigns on social media platforms like Facebook, Instagram, and LinkedIn.

For many businesses, PPC is an attractive way to generate immediate visibility while longer-term strategies like SEO build up over time. But it’s also easy to waste money on PPC if campaigns aren’t set up and managed correctly. This guide explains the basics of how PPC works, what it costs, and how to decide if it’s right for your business.

How PPC Works

In a Google Ads search campaign, you bid on keywords — the search terms you want your ad to appear for. When someone searches for one of those terms, Google runs an auction to decide which ads to show and in what order. The auction considers your bid amount but also your Quality Score, which reflects how relevant and useful your ad and landing page are to the search query. A high Quality Score means you can rank above competitors even if your bid is lower.

You set a daily budget cap, so you control how much you spend. When the day’s budget is exhausted, your ads stop showing until the next day. The cost per click varies significantly by industry — clicks for highly competitive terms like “lawyer” or “insurance” can cost tens of pounds each, while niche local service terms might cost pennies.

The Advantages and Disadvantages of PPC

The main advantage of PPC is speed. Unlike SEO, which can take months to produce results, a well-set-up PPC campaign can drive targeted traffic to your website within hours of launching. It’s also highly measurable — you can track exactly which keywords, ads, and landing pages produce enquiries or sales, and adjust your spend accordingly.

The main disadvantage is cost: you pay for every click, whether or not it converts into a customer. If your campaign isn’t tightly targeted, you can burn through budget quickly without meaningful return. PPC also stops working the moment you stop paying — there’s no residual benefit in the way that well-earned SEO rankings persist. For many businesses, the best approach is a combination of both: PPC for immediate visibility, SEO for long-term sustainable traffic.

Getting Started with PPC

Before launching a PPC campaign, define your goal clearly: are you trying to generate phone calls, form submissions, e-commerce sales, or something else? Each goal shapes how you structure your campaign and what you measure. Start with a modest budget and a narrow set of well-researched keywords rather than broad match terms that can attract irrelevant clicks.

Write compelling ad copy that matches the intent behind the search and leads to a landing page that delivers on what the ad promises. A disconnect between ad and landing page is one of the most common reasons PPC campaigns underperform. If you’re new to Google Ads, working with a qualified PPC specialist to set up your first campaigns correctly is almost always worth the investment — poorly structured campaigns are disproportionately expensive.