Quality Score in Google Ads: What Affects It

Two advertisers bid on the same keyword. One pays $4 a click and sits in position two. The other pays $9 and lands below them. The difference is rarely budget. It is Quality Score, the rating Google attaches to your keywords to judge how relevant and useful your ads are to the person searching.

For B2B accounts, where a single click can run $15 or more, that gap compounds fast. A higher Quality Score means you pay less for the same position, or hold a better position for the same money. Over a quarter, the savings fund another campaign.

This guide breaks down the three things that actually move Quality Score, separates the metric you see in the interface from the live signals Google scores in the auction, and gives you a concrete fix list you can work through this week.

What Quality Score actually is

Quality Score is a 1 to 10 diagnostic shown at the keyword level. It estimates how relevant your ad and landing page are to a search query, relative to other advertisers. Google calculates it from three components, each rated as Below average, Average, or Above average:

Expected click-through rate (CTR): how likely your ad is to be clicked when shown for that keyword, after stripping out the effect of position.
Ad relevance: how closely your ad copy matches the intent behind the search.
Landing page experience: how useful, relevant, and easy to navigate your page is for someone arriving from that ad.

One point worth sitting with: the 1 to 10 number you see is a reporting tool, a historical snapshot meant to help you diagnose problems. The auction uses a real-time quality assessment that factors in device, location, time of day, the exact query, and other context the static score never shows. So treat the number as a thermometer, not the disease itself. A keyword stuck at 4 is telling you one of the three components is dragging, and that is where the work goes.

Why it controls what you pay

Google ranks ads by Ad Rank, and Quality Score is a core input. The simplified version:

Ad Rank = your bid × Quality Score (plus ad extensions and context).

Because quality multiplies your bid, a strong score lets a lower bid beat a higher one. It also sets your actual cost per click. You pay the minimum needed to clear the advertiser below you, divided by your own quality. Higher quality, lower price.

The numbers below are illustrative, but they show the mechanic clearly.

Advertiser	Max bid	Quality Score	Ad Rank	Position
A	$4.00	9	36	1
B	$6.50	5	32.5	2
C	$9.00	3	27	3

Advertiser A bids the least and wins. Quality Score is doing the heavy lifting. This is also why chasing rank with raw bids burns money: you are paying a tax on low quality. If you want the full mechanics of bringing click costs down, we cover them in a separate guide to lowering cost per click.

The three components, and how to fix each one

Each component fails for different reasons. Diagnose before you act. Add the three status columns to your keyword view (Columns, then Quality Score, then the component statuses) and find which one reads "Below average."

Expected CTR: are people clicking your ad?

This is the strongest of the three signals and the hardest to fake. Google has years of data on whether ads like yours, for queries like this, get clicked. If your historical CTR for a keyword runs below what Google expects, the component drops.

What pulls it up:

Put the keyword in the headline. When someone searches "fleet management software" and your headline reads "Fleet Management Software," the match is obvious and the eye catches it. Google bolds matched terms, which lifts visibility.
Lead with the specific benefit or differentiator, not a generic claim. "Cut fuel costs 12%" earns clicks that "Industry-leading solutions" never will.
Use all the assets. Sitelinks, callouts, structured snippets, and a strong display path give the searcher more reasons to click and more surface area to occupy.
Match the ad to the funnel stage. A bottom-funnel query like "request a demo" wants an action-oriented ad. A research query like "what is fleet telematics" wants information, and a hard sell tanks its CTR.

Tighten this by writing distinct ads per ad group rather than reusing one across many. If your ad groups are too broad, no single ad can speak to every keyword, and CTR suffers across the board.

Ad relevance: does your copy match the search?

Ad relevance measures the semantic fit between the query and your ad text. It is usually the symptom of a structural problem: ad groups that try to cover too much.

Picture an ad group named "Software" holding "crm software," "accounting software," and "project management software." One ad cannot be relevant to all three. Each keyword gets a watered-down message and the relevance score slides.

The fix is tighter ad groups. Group keywords by shared intent so the ad can address that intent directly. Some teams run single-keyword ad groups for their highest-value terms, which gives total control over the match. That is more maintenance, so reserve it for the keywords that drive real pipeline. Good keyword research that maps to search intent makes this grouping almost automatic, because you have already clustered terms by what the searcher wants.

Watch for irrelevant traffic too. If broad match keywords pull in queries you never intended to serve, your ad looks irrelevant to those searches and the component drops. A disciplined negative keyword list keeps your ads off queries they were never built for, which protects both relevance and budget.

Landing page experience: does the page deliver?

The click is only the start. Google evaluates whether the page someone lands on is relevant to their search, transparent, easy to use, and fast. A page that loads slowly, hides its purpose, or asks for the wrong next step drags this component down, and it drags conversions down harder.

The most common failure in B2B is sending every ad to the homepage. A homepage is built for everyone, so it is specific to no one. Someone who searched "warehouse inventory software" should land on a page about warehouse inventory software, with that phrase visible above the fold.

What Google and your prospect both reward:

Message match. The headline on the page echoes the promise in the ad and the words in the query. Continuity reassures the visitor they are in the right place.
Speed. Aim for a fast load, especially on mobile. Slow pages lose visitors before they read a word, and Core Web Vitals feed into the assessment.
Clarity and trust. Make the offer obvious, show what the visitor gets, and add proof: logos, a testimonial, a security note. Avoid intrusive interstitials that block the content.
One clear action. A focused page with a single primary call to action converts better and reads as more useful than a page pulling in five directions.

Landing page experience is the component most advertisers neglect because it lives outside the Google Ads interface, on the website. It is also where the largest gains usually hide.

A practical sequence to raise a low score

Work in this order. The early steps are cheap and fast; the later ones compound.

Find the drag. Sort keywords by Quality Score, ascending. For each low scorer, read which of the three components is "Below average." Do not guess.
Fix structure first. If ad relevance is low, your ad groups are probably too broad. Split them by intent before touching anything else. This single move often lifts two components at once.
Rewrite the ads. Put the keyword in a headline, lead with a concrete benefit, and make sure every ad group has at least one ad written for it specifically. Add all relevant assets.
Align the landing page. Match the page headline to the ad, point the ad at the most specific relevant page, and check load speed on mobile.
Prune with negatives. Run a search terms report, find the queries that do not fit, and add them as negatives. This stops the irrelevant impressions that quietly erode CTR and relevance.
Give it time, then re-check. Quality Score updates as new data accumulates. Allow a couple of weeks of meaningful traffic before judging whether a change worked.

Resist the urge to delete and recreate a low-scoring keyword to "reset" it. Google ties quality history to the keyword and query, so a fresh copy inherits the same expectations. The performance, not the keyword ID, is what changed scores.

Common mistakes that keep scores low

Optimizing the number instead of the business. A 10 on a keyword that never converts is worthless. Quality Score is a means to cheaper, better-targeted clicks, not a trophy. Some high-value keywords sit at 6 or 7 forever because the competition is fierce, and that is fine if the leads close.

Letting low search volume hide a problem. Brand-new keywords with little data show "null" or a tentative score. Do not over-read it; wait for traffic.

Treating all keywords as equal. Concentrate your effort on the keywords that carry spend and pipeline. A long tail of low-traffic terms scoring 5 rarely deserves the hours.

Forgetting the page. Teams polish ad copy for weeks and never touch the landing page, then wonder why landing page experience stays "Below average." The page is a full third of the score and most of the conversion rate.

FAQ

What is a good Quality Score?

Anything 7 or above is healthy. Scores of 8 to 10 usually mean your structure, ads, and pages are well aligned. Below 5 signals a real problem worth fixing, almost always in ad relevance or landing page experience. Context matters, though: on fiercely competitive head terms, a 6 can be perfectly acceptable if the keyword drives qualified leads.

Does Quality Score directly lower my cost per click?

Yes. Quality is part of Ad Rank, and your actual CPC is calculated by dividing the rank threshold you need to clear by your own quality. A higher score means you pay less for the same position. It is one of the few levers that improves both your cost and your placement at the same time.

How long does it take to improve?

Plan for a few weeks. Quality Score reflects accumulated performance, so a change to your ad or page only moves the number once enough new impressions and clicks have validated it. Low-traffic keywords take longer simply because data arrives slowly.

Should I pause keywords with low Quality Score?

Not automatically. First check whether they convert. A keyword that brings cheap, closing leads at a Quality Score of 4 is still earning its place. Pause the keywords that combine low quality with poor conversion and high cost, after you have tried to fix the underlying components.

Does Quality Score affect Performance Max or Smart Bidding?

There is no visible Quality Score in Performance Max, and the automated formats run their own real-time quality assessments. The underlying principle holds everywhere: relevant ads and useful landing pages win cheaper placements. The fundamentals you build for Search carry over.

Can I see Quality Score history over time?

Yes. Quality Score and its three components can be added as time-series columns or pulled through the reporting tools, so you can chart how a keyword responded after you split an ad group or rewrote a page. Watching the trend is more useful than reacting to a single day's number.

The short version

Quality Score is Google's verdict on how well your ads serve searchers, and it sets the price you pay to compete. Three things move it:

Expected CTR: keyword in the headline, a concrete benefit, all assets on, tight ad groups.
Ad relevance: group keywords by intent, keep ad groups narrow, block irrelevant queries with negatives.
Landing page experience: match the page to the ad and query, load fast, make the offer and next step obvious.

Diagnose which component is failing before you change anything, fix structure first, and give each change a couple of weeks to prove out.

If your account is full of keywords stuck in the 4 to 6 range and you would rather see where the money is leaking than guess, we offer a focused review of your Google Ads account that pinpoints the structural and landing-page issues holding your scores down. Reach out and we will take a look at your real numbers and tell you where the fastest wins are.