Quality Score is one of the most misunderstood metrics in Google Ads. Advertisers obsess over bids and budgets while ignoring a number that directly determines how much they pay per click and where their ads appear. A higher Quality Score lowers your cost-per-click and improves your Ad Rank, which means you can outrank competitors while spending less.
The score runs from 1 to 10 and is assigned at the keyword level. It's built from three components: expected clickthrough rate, ad relevance, and landing page experience. Google rates each one as Above Average, Average, or Below Average. Most accounts have at least one rated Below Average, and that's exactly where the opportunity is.
One important clarification before you start: Google is explicit that Quality Score is a diagnostic tool, not a direct input to Ad Rank. Ad Rank uses the underlying signals, not the score itself. But improving those signals improves both your score and your actual auction performance. So the work is worth doing.
This guide walks through each component in order, starting with diagnosis. No filler, no invented metrics — just the actions that move the number.
Before you fix anything, you need to see what's actually broken. Go to your Google Ads account, open the Keywords tab, and add the Quality Score columns. Click the columns icon, search for "Quality Score," and add Quality Score, Exp. CTR, Ad Relevance, and Landing Page Exp. These four columns give you the full picture.
Read the component ratings carefully. A score of 6 or 7 with one component rated Below Average tells you exactly what to fix. Don't just look at the overall number and move on.
One filter you need to apply before drawing any conclusions: impressions. Keywords with fewer than 100 to 200 impressions show unreliable Quality Scores. Google doesn't have enough data to rate them accurately, so the score can swing wildly. Filter your keyword list to show only keywords with meaningful volume before you start prioritizing.
Then sort by spend. A keyword with a Quality Score of 4 that's spending $50 a day is a much bigger problem than a low-QS keyword spending $2 a week. High spend plus low Quality Score means your CPCs are bleeding. Fix those first.
Export the data to a spreadsheet and sort by Quality Score ascending. Your worst offenders are now your work queue. For each keyword, note which component is rated Below Average — that tells you which step in this guide to apply first.
The root cause of Below Average ad relevance is almost always the same thing: ad groups stuffed with loosely related keywords. When your ad group contains "emergency plumber," "plumbing company near me," "drain cleaning service," and "water heater installation," no single ad can be genuinely relevant to all of them. Google sees the mismatch. So does the user.
The fix is structural. Move toward Single Keyword Ad Groups (SKAGs) or tightly themed clusters of three to five closely related keywords per ad group. Each cluster should share the same core intent so one set of ads can speak directly to it.
How to identify bloated ad groups: if you couldn't write one headline that naturally fits every keyword in the group, the group is too broad. Split it.
The process is straightforward. Pull keywords from the bloated ad group, create new ad groups for each distinct theme, and write ads specifically for those themes. Yes, this takes time. But it's the structural change that makes every other improvement in this guide actually stick.
This matters most in accounts with sharp intent variation between terms. Home services, legal, dental, and healthcare accounts are the clearest examples. "Emergency root canal" and "teeth whitening cost" are both dental keywords, but the person searching each one is in a completely different mindset. They need different ads and different landing pages. Grouping them together hurts both.
Ad relevance improves when your ad copy directly reflects what the user searched. Google's algorithm checks for alignment between the keyword and the ad. If someone searches "burst pipe repair" and your headline says "Trusted Plumbing Services Since 1998," you've failed the relevance test even if you're a great plumber.
For Responsive Search Ads, write headlines that address the specific intent behind each ad group's theme. At least one headline should include or closely mirror the keyword. Pin that headline to position 1 so Google always leads with the keyword-matched message, regardless of which combination it tests.
Write at least two RSA variations per ad group. One should address the problem directly ("Burst Pipe? We're Available Now"). The other should focus on the outcome or solution ("Same-Day Pipe Repair, Guaranteed"). This gives Google something to test while keeping both options relevant.
Dynamic Keyword Insertion (DKI) using the {keyword:} parameter can help in tight, well-structured ad groups. It automatically inserts the triggering keyword into your headline, which improves relevance signals. But use it selectively. If your keyword list is broad or includes long, awkward phrases, DKI will produce headlines that read like they were generated by a machine. Which, technically, they were.
The most common mistake here: using the same RSA across multiple ad groups. This tanks ad relevance scores across the board because the ad can't be specifically relevant to all the different themes it's serving. Each ad group needs its own ad, written for that group's keywords.
Landing page experience is the hardest component to improve and the most neglected. It's also the one where accounts in home services, legal, dental, and healthcare tend to lose the most ground, because many of these businesses send all their paid traffic to a generic homepage.
Google evaluates four things: relevance of page content to the keyword and ad, page load speed, mobile usability, and ease of navigation. You need to address all four.
Relevance: The headline on your landing page should confirm the promise in your ad immediately. If the ad says "Same-Day HVAC Repair," the page headline should say something like "Same-Day HVAC Repair, Available Now." The user clicked expecting a specific thing. Show them they're in the right place within the first two seconds.
Speed: Run your landing pages through Google PageSpeed Insights at pagespeed.web.dev. It's free and gives you specific issues to fix. Aim for a mobile score above 70. Anything below 50 is actively hurting your Quality Score and your conversion rate simultaneously.
Mobile: More than half of search traffic comes from mobile devices. A page that requires pinching and zooming, or that has buttons too small to tap, registers as poor experience. Test every landing page on an actual phone, not just a desktop browser's mobile preview.
Structure: Create dedicated landing pages per service, not per campaign. If you're running ads for "emergency dental" and "Invisalign consultation," those should go to different pages. A page built specifically for one service converts better and scores better than a homepage that tries to serve everyone.
One more thing: avoid pop-ups that fire immediately on page load. Google flags these as poor experience, and they're also annoying enough that users leave before you get a chance to convert them.
Expected CTR is relative, not absolute. Google compares your keyword's historical CTR to other advertisers bidding on the same term. You're not being graded against a fixed standard; you're being graded against your competition.
The fastest way to improve it is to write ad copy that speaks to a specific intent or concern rather than a generic value proposition. "Licensed & Insured, Free Estimates" is more compelling than "Top-Rated Company." One tells the user something concrete. The other tells them nothing they couldn't guess.
Use all available ad assets. Sitelinks, callouts, structured snippets, call assets, location assets — these expand your ad's footprint on the page and give users more reasons to click. For eCommerce accounts, price assets and promotion assets are particularly effective because they set expectations before the click, which also improves conversion rate.
Pause ads with consistently low CTR. Historical performance data pulls down the expected CTR for the entire ad group. A weak ad that's been running for months is actively working against you.
Review your Search Terms report regularly. If irrelevant queries are triggering your ads, users are seeing your ad for something they didn't want, not clicking, and moving on. That non-click counts against your CTR. Adding negative keywords from the Search Terms report improves the relevance of your actual impressions, which lifts CTR over time.
Most advertisers treat negative keywords as a cost-control measure. They are that, but they're also a Quality Score tool. Every irrelevant impression that doesn't result in a click drags down your expected CTR, which feeds directly into your Quality Score.
Build your negative keyword list from the Search Terms report. Do this weekly for the first 30 to 60 days of any campaign. The early weeks generate the most irrelevant traffic because Google is still learning what your ads should match.
Apply negatives at the right level. Campaign-level negatives work for broad exclusions: competitor brand names, irrelevant verticals, geographic terms that don't apply. Ad group-level negatives give you more surgical control when you need to prevent keyword cannibalization between ad groups in the same campaign.
For local service businesses, add these to your negative list immediately: "DIY," "how to," "free," "school," "course," "training," "certification." These terms attract people who want to learn how to do something themselves, not hire someone to do it. They browse, don't convert, and hurt your CTR.
Shared negative keyword lists save time when you're managing multiple campaigns or multiple client accounts. Build the list once, apply it everywhere relevant, and update it centrally.
Quality Score doesn't update instantly. Google recalculates scores as new data accumulates, typically over days to weeks. Don't check the morning after you restructure an ad group and expect a different number.
Ad group restructuring and new ad copy generally show impact within one to two weeks, provided the ad groups have enough volume. Landing page changes can move faster because Google crawls pages regularly and can update its assessment of page experience without waiting for new click data.
A realistic outcome: moving keywords from a Quality Score of 4 or 5 to a 7 or 8 can meaningfully reduce CPCs and improve Ad Rank without increasing bids. The math works in your favor because you're competing more efficiently, not just spending more.
Track progress by checking the QS columns weekly for the first month, then monthly once scores stabilize. Keep a simple log of which keywords you fixed and when, so you can tie score improvements to specific changes.
If you're managing this across a large account or multiple clients, the diagnostic and restructuring work is time-intensive. It requires senior-level attention to do correctly, and it's easy to miss patterns when you're also managing bids, budgets, and client reporting simultaneously. That's where a dedicated paid search team pays for itself.
Quality Score improvement is methodical work. Diagnose first, fix the component with the most room to move, then build the structural habits — tight ad groups, matched ad copy, fast landing pages, clean negative lists — that keep scores high over time. The payoff is real: lower CPCs, better Ad Rank, and more efficient spend across every keyword in your account.
If you're running a high-volume account or managing paid search for clients and want this done at a senior level without building in-house capacity, Learn more about our services to see how Triad Media Lab approaches paid search management.
