If you’ve ever wondered why your Google Ads cost per click keeps creeping up even when you’re doing everything Google tells you to do, Quality Score is probably the culprit. And more specifically, the parts of Quality Score you’re ignoring.

Let me break down what Google Ads Quality Score actually is, what moves it, and what you can do this week to lower your CPCs without touching your bids.

What Google Ads Quality Score Actually Is (And What It Isn’t)

Quality Score is Google’s rating of the quality and relevance of your keywords, ads, and landing pages. It’s scored on a scale of 1 to 10, with 10 being the best.

Here’s the part people miss: it’s not a report card. It’s a pricing lever.

Google uses Quality Score as part of its Ad Rank formula. Ad Rank determines where your ad shows and — critically — what you pay per click. The formula looks something like this:

Ad Rank = Bid × Quality Score

That means a higher Quality Score can literally let you outrank a competitor who’s bidding more than you. And it means a low Quality Score forces you to overbid just to stay competitive. I’ve seen accounts where a Quality Score jump from 4 to 7 on a high-volume keyword cut CPC by nearly 30% with zero change to the bid.

That’s not a rounding error. That’s real money.

The Three Components That Drive Your Score

The three sub-components of Quality Score are “Below Average,” “Average,” or “Above Average.” You need to know which of your keywords is underperforming in each area — because Google tells you, and most people never look.

Expected Click-Through Rate (CTR)

Expected Click-Through Rate (CTR) is Google’s prediction of how likely someone is to click your ad when it appears for a given keyword. CTR is based on your historical performance and the competitive landscape.

If your expected CTR is Below Average, Google is essentially saying: your ads aren’t compelling enough for the searches you’re targeting. The fix isn’t always the ad — sometimes it’s the keyword itself. Overly broad keywords attract impressions from searchers who were never going to click, which tanks your expected CTR.

Tighten your match types. Cut keywords with high impressions and low CTR and write ad copy that speaks directly to the searcher’s intent — not generic benefit statements, but the specific thing they’re looking for right now.

Ad Relevance

Ad Relevance measures how closely your ad matches the keyword’s intent. A “Below Average” rating here usually means you have too many keywords crammed into one ad group. When one ad has to serve 40 different keywords, it can’t be relevant to all of them.

The solution is tighter ad groups — ideally, single-keyword ad groups (SKAGs) or tightly themed clusters where every keyword in the group could logically trigger the same ad and land on the same page. Yes, it’s more work. Yes, it’s worth it.

Landing Page Experience

In a previous post, I wrote about creating an optimized landing page, but the short version is this: Google uses the design and layout of the landing page to determine if the user will convert.

The landing page is the component most advertisers underestimate because it’s harder to fix than tweaking ad copy. But it’s also the one with the highest ceiling. I’ve seen landing page improvements move Quality Scores from 4 to 8 for competitive keywords — and the difference in CPCe was dramatic.

The Google Ads Quality Score Audit You Should Do Right Now

Here’s a step-by-step process I use when I take on a new account. It takes about 30 minutes, and I will show you exactly where you’re hemorrhaging money.

Step 1: Add Quality Score columns to your Keywords view.

In Google Ads, go to your Keywords tab and add the following columns: Quality Score, Expected CTR, Ad Relevance, and Landing Page Experience. If you’ve never done this, you’re flying blind.

Step 2: Sort by Impressions descending.

You want to focus on the keywords that are actually driving volume. A Quality Score of 3 on a keyword with 10 impressions doesn’t matter. A Quality Score of 3 on a keyword with 10,000 impressions is costing you serious money.

Step 3: Flag every keyword rated “Below Average” in any of the three components.

Make a simple list: keyword, which component is underperforming, and current CPC. This list is your priority list.

Step 4: Diagnose before you fix.

Don’t just start rewriting ads. Match the problem to the component. Below Average Expected CTR? Look at your ad copy and your keyword match types. Below Average Ad Relevance? Look at your ad group structure. Below Average Landing Page Experience? Look at your page load speed, mobile performance, and message alignment.

Step 5: Fix one component at a time and give it 2–3 weeks.

Quality Score updates based on new data, but it takes time. If you change everything at once, you won’t know what worked.

The Numbers Behind Why This Matters

Let me put this in concrete terms.

Say you’re running a campaign in a competitive service niche and you’re paying an average CPC of $8. You have a Quality Score of 4 on your best keywords. If you improve those keywords to a Quality Score of 7, you can expect — based on Google’s own pricing model — a CPC reduction somewhere in the range of 30–50%.

At $8 a click, a $3,000 monthly budget buys you 375 clicks.

At $5 a click, that same $3,000 buys you 600 clicks — a 60% increase in traffic with zero budget increase.

Combine that with a higher CTR and better ad relevance on top of that improved landing page experience, and you’re not just paying less. You’re also converting more of those clicks because the entire experience is more cohesive.

That’s the compounding effect Quality Score creates when you actually work on it.

What Doesn’t Move the Needle

I’d be doing you a disservice if I didn’t address some of the Quality Score myths floating around.

Pausing low-Quality Score keywords doesn’t help. Pausing a keyword removes it from auctions, but it doesn’t improve the overall structure of your account. Fix the underlying problem; don’t just hide it.

Raising your bid does not improve Quality Score. Bidding more gets you more impressions, but it does nothing to your relevance scores. In fact, more impressions at the same low CTR will hurt your expected CTR further.

Quality Score isn’t updated in real time. It’s a lagging indicator. Don’t make changes on Monday and expect to see movement by Wednesday. Audit, fix, wait, and measure.

The Bigger Picture

Quality Score is really Google’s way of aligning its incentives with yours. Google wants users to have a good experience. When your ads and landing pages deliver that, Google rewards you with lower costs. When they don’t, you pay a premium.

Most advertisers treat Quality Score as something to check on occasionally. The accounts I’ve worked on that have the lowest CPCs and the strongest ROI treat it as an ongoing discipline — something they audit quarterly, optimize methodically, and tie directly to their cost-per-acquisition targets.

Your bid strategy matters. Your budget matters. But if your Quality Score is dragging, both of those factors are working against you.

Fix the foundation first. The rest gets easier from there.