PPC operates through a bidding system. Advertisers compete for prime ad placement on search engine results pages (SERPs) or other platforms, like social media or websites in ad networks. The process goes something like this:
- You bid on specific keywords or phrases relevant to your product or audience.
- When users search for those terms, the platform uses an algorithm to decide which ads to show.
- Your ad placement is determined by your Ad Rank, a combination of factors that are explained below.
Key Factors Affecting Ad Rank
Ad Rank determines where (and if) your ad appears. The better your Ad Rank, the more likely you are to secure a prime spot—usually at the top of the search results. Here’s what influences it:
1. Bid Amount
Your bid is the maximum amount you’re willing to pay for a click. While a higher bid can increase your chances of winning, it’s not the only deciding factor—platforms also prioritise relevance and quality.
2. Competitiveness of Keywords
Highly sought-after keywords (e.g., “best laptops for gaming”) attract more bidders, driving up the cost per click (CPC). Tools like Google Keyword Planner can help you gauge keyword competition and identify cost-effective alternatives.
3. Ad Quality Score
Search engines assess the relevance and effectiveness of your ad to assign it a Quality Score, which significantly impacts your Ad Rank. Quality Score is influenced by:
- Click-Through Rate (CTR): A higher CTR indicates your ad is engaging and relevant.
- Ad Relevance: How well your ad matches the intent behind the user’s search query.
- Landing Page Experience: Your landing page must provide a seamless, relevant, and user-friendly experience. Slow-loading or irrelevant pages will hurt your score.
4. Ad Extensions
Enhancing your ad with extensions (e.g., call buttons, location information, or additional links) can improve your visibility and CTR. Many platforms reward the use of ad extensions by boosting your Ad Rank.
5. Ad Rank Threshold
Each platform sets a minimum threshold for ads to appear in specific placements. If your bid and Quality Score don’t meet this threshold, your ad won’t show, even if you’re the only bidder.
6. User Context and Search Intent
Context is key! Platforms analyse factors like:
- Location: A user in London searching “nearby coffee shops” will see different ads than someone in Manchester.
- Device: Mobile users might see ads tailored to smaller screens or with click-to-call features.
- Time of Day: Ads for restaurants might perform better during lunch or dinner hours.
- Search Intent: Platforms evaluate whether users are looking to buy, research, or just browse, ensuring the most relevant ads appear.
7. Expected Impact of Ad Formats
Platforms predict how your ad format and extensions will resonate with users. Well-structured, engaging ads often outperform basic ones, even with a lower bid.