Paid advertising: the complete guide

Paid advertising means paying a platform such as Google or Meta to show your message to a chosen audience. The most common model is pay-per-click, where you are charged when someone clicks. Placement is decided by an auction that weighs your bid and the quality of your ad, not by the biggest budget alone. Search ads reach people who are already looking, while social, display and video ads reach people who fit your customer profile. Start with [What is paid advertising?](/resources/learn/ads/what-is-ppc/) for the full picture, and judge any campaign on leads or sales, not clicks.

Judge them on results that matter to the business: leads, bookings or sales, and the cost of each. To do that you need accurate conversion tracking, tested before spend begins, and a habit of comparing platform numbers with your own records of calls, forms and orders. Platform reports tend to count what they can see, so some gap is normal. Offline sales can be sent back to the platform so it learns which leads became customers. See [Conversion tracking and attribution](/resources/learn/ads/conversion-tracking-and-attribution/) for how to set this up and where the limits are.

The cause is usually after the click. Common culprits are a landing page that does not repeat what the ad promised, too many competing choices, a slow mobile experience, a long form or broken tracking. Check each in turn, starting with whether the page headline matches the ad and whether the action works on a phone. Google rates landing page experience as one part of Quality Score, which makes the page a diagnostic as well as a conversion lever. Our guide to [Landing pages for ads](/resources/learn/ads/landing-pages-for-ads/) gives a step-by-step way to find and fix the problem.

Organize it by how you sell: one campaign per service or product line and location decision, and ad groups inside it for closely related searches. Choose keyword match types deliberately, block irrelevant searches with negative keywords and pick a bidding strategy your conversion data can support. Google’s Performance Max is an automated campaign type that gives reach but less control, so prove a clean Search campaign first. The detail, including review routines, is in [Google Ads account structure](/resources/learn/ads/google-ads-account-structure/).

No. Costs and results depend on your industry, location, competition, offer, website and tracking, and they change over time. Treat any guaranteed return or fixed cost per click as a warning sign. What a good agency can promise is process: clear goals, accurate measurement, regular reporting and honest advice when something is not working. Work out what a customer is worth to you first, because that sets the most you can sensibly pay to win one. Our [digital ads service](/services/digital-ads/) starts there, and each campaign gets a project manager as your contact.