Google Ads is Google’s online advertising platform that allows businesses to display paid advertisements across Google Search, YouTube, the Google Display Network, Discover, Maps, and partner websites using a Pay-Per-Click (PPC) and auction-based model.
The 5 Core Campaign Types in Google Ads
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Search Campaigns: Text-based ads shown at the top and bottom of Google Search results when users search for targeted high-intent keywords.
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Performance Max (PMax): An AI-driven, goal-based campaign type that automatically serves assets across all of Google’s channels (Search, YouTube, Display, Discover, Gmail, Maps) from a single campaign.
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Display Campaigns: Visual banner ads placed across millions of websites, apps, and video platforms to drive brand awareness and retarget past website visitors.
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Video Campaigns (YouTube): Skippable and non-skippable video ads, in-feed ads, and YouTube Shorts ads aimed at building engagement, brand recall, and video-driven conversions.
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Shopping / Demand Gen Campaigns: Visual product listings directly in SERPs (Shopping) and immersive, visually rich multi-format ads across YouTube, Shorts, and Discover (Demand Gen).
Core Mechanics & Bidding Strategies
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Ad Rank Formula:
$$\text{Ad Rank} = \text{Max CPC Bid} \times \text{Quality Score} + \text{Expected Impact of Ad Assets (Extensions)}$$ -
Quality Score Components: Expected Click-Through Rate (CTR), Ad Relevance to the search term, and Landing Page Experience.
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Bidding Strategies:
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Smart Bidding (Automated): Target CPA (Cost-per-Acquisition), Target ROAS (Return on Ad Spend), Maximize Conversions, Maximize Conversion Value.
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Manual Bidding: Manual CPC (with or without Enhanced CPC) for granular keyword-level control.
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Google Ads Campaign Hierarchy & Best Practices
| Level | What to Configure | Best Practice |
| Account | Billing, global settings, conversion tracking tags | Set up GA4 conversion linking & enhanced conversions |
| Campaign | Budget, bidding strategy, campaign goal, location/language targeting | Group campaigns by objective or product line |
| Ad Group | Keyword themes, audience signals | Keep 10–20 tightly themed keywords per ad group |
| Ads & Assets | Responsive Search Ads (RSAs), headlines, descriptions, sitelinks, callouts | Use all 15 headlines and 4 descriptions with strong CTR hooks |
Keyword Match Types Overview
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Exact Match (
[keyword]): Ads show only for searches with the exact meaning or intent. -
Phrase Match (
"keyword"): Ads show for searches that include the meaning of the keyword phrase. -
Broad Match (
keyword): Ads show on searches related to your keyword (works best paired with Smart Bidding). -
Negative Keywords (
-keyword): Prevents ads from showing on irrelevant queries to avoid wasted ad spend