What is Quality Score?

Google's measure of ad and landing page relevance

Quality Score is a rating Google assigns to paid search ads on a scale of one to ten, measuring how relevant and useful an ad and its associated landing page are to the buyer who triggered the auction. A higher Quality Score signals to Google that the ad is a good match for the search, which rewards the advertiser with better ad placement and a lower cost per click. A lower Quality Score means the ad is less relevant, which results in worse placement and higher costs for the same visibility.

Quality Score is not just a performance metric to observe. It is a lever that directly controls two of the most important outcomes in paid search: how visible your ads are and how much you pay for that visibility. Understanding what drives Quality Score and how to improve it is one of the highest-return optimization activities available in paid search management.

The three components of Quality Score

Google calculates Quality Score from three components: expected click-through rate, ad relevance, and landing page experience. Each component is rated as above average, average, or below average, and together they produce the one to ten score assigned to each keyword in an account.

Expected click-through rate is Google's prediction of how likely a buyer is to click the ad when it appears for a given search. This prediction is based on historical performance of the ad and similar ads in comparable auctions. An ad that has historically earned strong click-through rates for a given keyword will have a higher expected CTR component than a new ad or one that buyers have consistently skipped over.

Ad relevance measures how closely the ad copy matches the intent behind the search query. An ad that speaks directly to what the buyer searched for scores higher on relevance than a generic ad served against a broad keyword. This is why tightly structured ad groups where each group targets a narrow set of closely related keywords and the ad copy reflects those specific keywords consistently outperform large ad groups with loosely related keywords and generic messaging.

Landing page experience measures how useful and relevant the page a buyer lands on after clicking the ad is to what they were searching for. A landing page that delivers on the promise of the ad, loads quickly, is easy to navigate on mobile, and makes the desired action clear scores higher than a page that sends buyers to a generic homepage or one that is slow to load or difficult to use on a phone.

How Quality Score affects ad auctions

Every time a buyer conducts a search that matches a keyword an advertiser is bidding on, Google runs a real-time auction to determine which ads appear, in what order, and at what cost. Quality Score is a central input to that auction through a metric called Ad Rank, which determines placement.

Ad Rank is calculated by multiplying the maximum bid by the Quality Score and factoring in additional signals about the auction context. A higher Ad Rank wins better placement. This means an advertiser with a Quality Score of eight bidding three dollars can outrank an advertiser with a Quality Score of four bidding five dollars, and do so at a lower actual cost per click.

The practical implication is that Quality Score improvement is a direct substitute for higher bids. A business that improves its Quality Score from five to eight does not need to increase its bids to maintain or improve its ad placement. It achieves better placement at lower cost simply by becoming more relevant. For local businesses managing fixed paid media budgets, Quality Score optimization is one of the most efficient ways to get more from existing spend without increasing it.

Quality Score in local paid search

Quality Score matters in all paid search but has particular implications for local businesses because the searches that drive local leads are often highly specific and highly competitive. A local landscaping company is competing against other local operators and potentially national franchise brands for a limited pool of high-intent local searches where every click represents a buyer who is ready to hire.

In that competitive environment, Quality Score is a meaningful differentiator. A well-managed local campaign with strong ad relevance and optimized landing pages can consistently outrank and outperform competitors with larger budgets but weaker Quality Scores. This levels the playing field between independent landscaping businesses and larger advertisers in ways that traditional media never did.

Location-specific ad copy is one of the most reliable Quality Score improvements available to local businesses. An ad for a landscaping company that names the neighborhood or city it serves, references the specific service the buyer searched for whether that is lawn maintenance, spring cleanups, or irrigation installation, and includes a clear call to action will almost always outscore a generic ad for the same keywords. The specificity signals relevance to both the buyer and to Google's relevance assessment.

Landing page alignment with ad copy is the other primary Quality Score lever for local businesses. If the ad promotes spring lawn cleanup services in Nashville and the landing page delivers a generic landscaping services page with no mention of spring cleanups or Nashville, the landing page experience score will drag down the overall Quality Score regardless of how strong the ad copy is. The ad and the landing page need to tell the same story.

Improving Quality Score over time

Quality Score improvement is an ongoing process rather than a one-time fix. The three components respond to different types of work on different timelines.

Expected CTR improves as ads earn better click-through rates through copy testing and refinement. Writing multiple ad variations and identifying which ones buyers respond to most consistently is the primary driver of CTR improvement. This is where A/B testing ad copy pays direct dividends in Quality Score.

Ad relevance improves through tighter keyword grouping and more specific ad copy. Restructuring ad groups so each group targets a narrow, closely related set of keywords and the ad copy directly reflects those keywords is the structural work that supports sustained relevance improvement.

Landing page experience improves through page speed optimization, mobile responsiveness, content alignment with ad copy, and conversion path clarity. A landing page that loads in under two seconds, works seamlessly on mobile, delivers exactly what the ad promised, and makes the desired next action obvious will consistently score better than one that fails on any of those dimensions.

How PowerChord manages Quality Score

Your PowerPartner team monitors Quality Score across every keyword in every campaign as part of the paid media management service, using below average component ratings as diagnostic signals that point to specific optimization work. Low expected CTR signals that ad copy needs testing and refinement. Low ad relevance signals that keyword grouping needs restructuring. Low landing page experience signals that the page needs content, speed, or usability attention.

Quality Score trends are tracked in PowerStack alongside cost per click, click-through rate, and cost per lead so the relationship between Quality Score improvements and cost efficiency is visible over time. For multi-location networks, Quality Score is managed at the campaign level for each location so underperforming markets are identified and addressed without waiting for aggregate performance data to surface the issue.