Google Ads Quality Score: What It Is and Why It's Costing You Money

In this guide:

Google Ads Quality Score is Google's 1 to 10 rating of how relevant your ad, keyword, and landing page are to the person searching, and it directly affects both your ad position and your cost per click. A low score means you pay more for worse placement. A high score means Google rewards you with cheaper clicks and better visibility.

Across the Google Ads accounts we manage for Australian businesses, Quality Score is one of the first things we check when a campaign isn't performing. More often than not it's the quiet reason a client thinks their Google Ads "don't work", when really the ads are working fine but expensive because of a fixable relevance problem.

How Is Google Ads Quality Score Actually Calculated?

Google Ads Quality Score breakdown showing the three components

Google breaks Quality Score into three components, each rated as below average, average, or above average.

  • Expected click-through rate How likely your ad is to be clicked when shown for that keyword.
  • Ad relevance How closely your ad copy matches the intent behind the keyword.
  • Landing page experience How relevant, useful, and fast your landing page is once someone clicks.

You can see this breakdown for any keyword in the Keyword tab of Google Ads, but only if you add the relevant columns. Google doesn't show it by default, which is part of why so many advertisers never look at it. Google's own guide to Quality Score explains the official definition if you want it straight from the source.

Why a Low Quality Score Is Costing You More Than You Think

Quality Score is baked directly into Ad Rank, which determines both whether your ad shows and what you pay per click. Two advertisers bidding $5 on the same keyword can end up paying very different amounts depending on their Quality Score, with the lower scoring one often paying noticeably more for the same or worse position.

Photorealistic image of a small business owner reviewing Google Ads cost per click data on a laptop

We've seen Australian small businesses sitting on Quality Scores of 3 or 4 out of 10, wondering why their cost per click is double what a competitor seems to be paying. In most cases it traces back to one of two things: ad copy that doesn't match the keyword closely enough, or a landing page that takes too long to load or doesn't answer the search intent.

This is exactly why landing page speed matters so much for Quality Score. Our guide to landing page load speed covers exactly how much this costs advertisers in practice. It's one of the most overlooked levers in this entire conversation.

What Actually Moves the Needle on Google Ads Quality Score

Tighten your ad groups

The single biggest lever most businesses have is ad group structure. If one ad group contains twenty loosely related keywords, your ad copy can't possibly be relevant to all of them. Smaller, tightly themed ad groups with five to ten closely related keywords let your ad copy speak directly to the search.

Match your ad copy to the keyword

If someone searches "emergency plumber Parramatta" and your headline says "Quality Plumbing Services", you've already lost relevance points. The headline should reflect the actual words being searched, where it makes sense to do so naturally.

Fix the landing page, not just the ad

This is the one businesses skip most often because it feels like more work. Sending someone who searched "24 hour plumber" to your generic homepage instead of a page specifically about emergency plumbing is a relevance mismatch Google penalises. Our guide to landing pages for Google Ads goes into this in more depth.

A slow loading landing page hurts Quality Score and kills conversion rate at the same time. It's a double cost, and one of the easiest things to test and fix.

Does Quality Score Affect Every Industry the Same Way?

Not quite. Industries with naturally lower expected click-through rates, often due to longer or more technical search terms, can find it harder to hit Quality Scores of 8 or above. This shows up a lot in B2B and professional services.

It doesn't mean Quality Score doesn't matter for those industries, it means the realistic benchmark looks different. A Quality Score of 6 or 7 in a competitive professional services category can still represent strong relevance.

A Real Example of What Fixing This Looks Like

Data infographic showing cost per lead improvement from Quality Score optimisation

One pattern we see consistently across local service accounts, like the carpet cleaning and appliance repair clients we manage, is that Quality Score improvements compound. A Sydney carpet cleaning client we work with saw their cost per lead drop from $108 to $70 over the course of ongoing optimisation. Quality Score work wasn't the only factor, but tightening ad groups and aligning landing pages to search intent was part of what got them there.

This is the part that's easy to miss. Quality Score isn't a one-off fix. It moves as your account matures, your ad copy gets sharper, and your landing pages get more specific.

Frequently Asked Questions About Google Ads Quality Score

What is a good Quality Score in Google Ads?

Anything from 7 to 10 is considered strong. A score of 5 or 6 is workable but leaves money on the table. Below 5 usually means there's a clear relevance problem between your keywords, ads, or landing page that's worth fixing before you spend more on bidding.

Can Quality Score change over time?

Yes. It's recalculated regularly based on recent performance, so a campaign that's improved its ad copy or landing page can see Quality Score rise within a few weeks. It can also drop if performance declines, so it's not a set and forget metric.

Does Quality Score apply to Performance Max campaigns?

No. Quality Score is a Search campaign metric. Performance Max doesn't show keyword-level Quality Scores because it doesn't use keyword targeting in the same way, though relevance between your assets and audience intent still matters for performance.

Why can't I see Quality Score for some keywords?

Google needs a minimum amount of impression data before it can calculate a reliable score. New keywords or very low volume keywords often show as "not yet available" until they've accumulated enough data.

Does a higher max bid make up for a low Quality Score?

Sometimes, but it's an expensive workaround. You can outbid a relevance problem to a point, but you'll be paying significantly more per click than a competitor with the same bid and a higher Quality Score. Fixing the underlying relevance issue is almost always cheaper long term.

Want Your Quality Score Checked Properly?

Quality Score problems are usually fixable once someone actually looks at the ad group structure and landing pages behind them. It's a big part of how we got a Sydney carpet cleaning client's cost per lead down from $108 to $70, and it's one of the first things we check on every account we take on.

Talk to us about your Google Ads campaign and we'll tell you straight where the money is leaking.