What Is Paid Search?

How Paid Search Works

Paid search ads are triggered by keyword targeting, an advertiser selects keywords relevant to their product or service, and their ad becomes eligible to show whenever a user's search query matches those keywords, based on the match type configured. When eligible, the ad competes in a real-time auction against other advertisers targeting the same or similar keywords, with the winning ad's position and cost determined by a combination of bid amount and Quality Score.

Because paid search ads appear directly in response to an active search, the format naturally captures a spectrum of intent depending on the keyword, from broad, informational searches to highly specific, transactional ones, which is part of why search intent and keyword match type are such central considerations in paid search strategy.

Examples & Use Cases of Paid Search

• A plumbing company bids on "emergency plumber near me," a highly transactional, local-intent keyword, ensuring its ad appears prominently when someone searches that exact need.

• A software company bids on "best project management tool for remote teams," a commercial-investigation keyword, and builds ad copy and a landing page specifically addressing that comparison-stage intent.

• A retailer runs Shopping ads (a paid search format showing product image, price, and store name) for a specific product search, competing directly against other retailers' listings for the same query.

• A home services company compares performance across two match types for the same core keyword, finding phrase match delivers a better balance of volume and relevance than either broad or exact match alone for its specific offering.

How is Paid Search calculated

Paid search performance is measured through the same core PPC metrics, CPC = Spend ÷ Clicks, CTR = (Clicks ÷ Impressions) × 100, and Conversion Rate = (Conversions ÷ Clicks) × 100, applied specifically to search campaign data.

Paid Search & Related Terms

Paid search is distinguished from paid social by intent and trigger: paid search targets based on what a user is actively searching for at that specific moment, capturing existing, expressed intent; paid social targets based on user interests, behavior, and demographics, generally reaching people before they've expressed active intent for that specific need, making the two channels complementary rather than interchangeable.

How to Interpret Paid Search

Paid search performance should be read in the context of keyword intent, a high CPC on a highly specific, transactional keyword can still be efficient if conversion rate is strong, while a low CPC on a broad, informational keyword might still produce a poor CPA if that traffic was never likely to convert given the keyword's actual intent.

Why Paid Search Matters

Paid search captures demand at the exact moment someone is actively looking for a solution, making it one of the most directly response-driven and typically highest-converting channels available in digital advertising, a meaningful advantage over channels that have to first generate interest from a cold, non-searching audience.