One of the most common questions I get from Google Ads managers and business owners is this:
“My Quality Score is very low on some keywords. Sometimes it is 1/10 or 3/10. My ad relevance is also low. Is this a big deal?”
The simple answer is:
Yes, it matters — but not in the way many people think.
A lot of advertisers see a low Quality Score and immediately panic. They start rewriting ads, changing landing pages, and restructuring campaigns without understanding what the number actually means.
In this guide, I will explain what Quality Score really is, how ad relevance fits into it, whether low scores are always dangerous, and what you should actually optimize inside your Google Ads account. Google describes Quality Score as a diagnostic tool at the keyword level, based on expected CTR, ad relevance, and landing page experience. Google also says the visible 1–10 Quality Score itself is not an input in the ad auction; instead, the real-time evaluations of those three underlying components are used.
What Is Quality Score in Google Ads?
Quality Score is Google’s rating of how relevant and useful your keyword, ad, and landing page are for a searcher. It is shown on a scale from 1 to 10 at the keyword level. The score is calculated from three components:
- Expected click-through rate
- Ad relevance
- Landing page experience
Each of these is marked as Above average, Average, or Below average compared with other advertisers competing on the exact same search over the last 90 days.
So, if you see a poor Quality Score, it usually means Google is signaling that one or more of those three components are weaker than competing ads for similar searches. Google’s own guidance says those component ratings are where you should look for opportunities to improve.
Is Quality Score Really Important?
Yes, but you need to understand it correctly.
Many marketers talk about Quality Score as if it is the main switch that controls your account. That is not exactly how Google explains it. Google says Quality Score is a diagnostic tool, not a KPI, and not something you should aggregate with the rest of your performance data.
However, this does not mean you should ignore it.
Why? Because the things behind Quality Score absolutely affect your performance. If your expected CTR is weak, your ad relevance is poor, or your landing page experience is below average, that can hurt your ability to win impressions efficiently and can lead to weaker ad performance. Google explicitly says the real-time evaluations of these three components are used in the ad auction.
So the best way to say it is this:
Do not obsess over the number. Obsess over the reasons behind the number.
What About Ad Relevance? Is It a Big Deal?
Yes, ad relevance is important because it tells you how closely your ad matches the intent behind the user’s search. Google defines ad relevance as how closely your ad matches the intent behind a user’s search, and improving relevance is one of the main ways Google recommends improving ad quality.
If your ad relevance is low, it usually means one of these things is happening:
- Your ad group contains too many mixed keywords
- Your ad copy is too generic
- The keyword intent and ad promise do not align well
- Your landing page is about the service broadly, but not the exact search intent
For example, if someone searches “roofing contractor” and your ad speaks in a very general way about “home improvement services” or even just “roofing solutions,” Google may see that as less tightly matched than a more direct ad mentioning roofing contractor, roof repair, roof replacement, or the exact local service being searched. Google’s best-practice guidance also recommends tying headlines and descriptions closely to keywords and using multiple tightly themed ad groups instead of forcing many different keywords into one bucket.
Why Can a Good Roofing Page Still Show Low Ad Relevance?
This is where many advertisers get confused.
You may have a landing page with a lot of roofing content. You may even be getting conversions. But Google can still mark ad relevance as average or below average for a keyword like roofing contractor.
That does not always mean your page is bad.
It may simply mean that competing advertisers are matching the query more directly in their ad copy and keyword grouping. Google compares these ratings against other advertisers competing on the exact same search. So even a decent page can look weak if the ad structure is too broad or the messaging is not tightly aligned with the search term.
This is why I often recommend tighter ad groups and more personalized ads for service businesses.
Does a Low Quality Score Mean Google Will Punish You?
Not automatically.
A low Quality Score is not a ban, a penalty, or a sign that your ads cannot work. But it can be a warning sign that your ads may be less competitive than they could be.
Google states that improving Quality Score can potentially contribute to better placements, more visibility, and more clicks, because better relevance and usefulness improve the ad experience. Google also notes that improving ad strength and adding more than one RSA per ad group can improve clicks and conversions on average.
So when advertisers say, “My campaign is converting even though Quality Score is low,” that can absolutely happen. But it can also mean there is still room to lower friction, improve click-through rate, and possibly get more out of the same budget.
What Should You Optimize First?
Here is the order I would focus on.
1. Fix your ad group structure
This is one of the biggest wins.
If you pack too many keywords into one ad group, it becomes much harder to write ads that match all of them properly. Google’s guidance recommends grouping keywords into similar categories and creating ads that are relevant to each category, rather than throwing everything into one ad group.
So instead of one ad group with:
- roofing contractor
- roof repair
- roof replacement
- emergency roofer
- commercial roofing
You may need separate ad groups or at least tighter thematic clustering.
That gives you a better chance to write direct, personalized ad copy.
2. Improve your ad copy
Your ad should clearly reflect the searcher’s intent.
Google recommends crafting messaging that focuses on user benefits and ties headlines and descriptions to your keywords. Their guidance even gives a simple example: if “digital cameras” is a keyword, the headline could be “Buy Digital Cameras.”
The lesson is simple:
If the keyword is roofing contractor, your ad should not dance around it. Mention the service directly. Mention the location. Mention the offer. Mention the trust factor.
Examples:
- Roofing Contractor in Houston
- Licensed & Insured Roof Repair Experts
- Free Roofing Estimate Today
This is often where ad relevance and expected CTR both improve together.
3. Check landing page experience
Your landing page should continue the promise made in the ad.
If your ad says “Emergency Roof Repair in Dallas,” but the landing page is a generic roofing homepage, that weakens the user journey. Google defines landing page experience as how relevant and useful the landing page is to people who click your ad.
A stronger page usually has:
- clear headline matching the search intent
- the exact service explained
- local trust signals
- fast loading experience
- strong CTA
- easy navigation and contact options
You do not always need a brand new page, but you do need a page that feels like the natural next step after the click.
4. Work on expected CTR
Expected CTR is one of the most overlooked parts of Quality Score.
Google defines it as the likelihood that your ad will be clicked when shown. Their guidance suggests improving it by making ad text more compelling, matching the ad closely to keyword intent, highlighting unique benefits, and testing stronger calls to action.
This means you should test:
- better headlines
- stronger offers
- trust-building language
- pricing hooks
- urgency where appropriate
- better asset usage
And yes, assets matter too. Google recommends using at least two responsive search ads per ad group and using as many asset types as possible, because those improvements are associated with more clicks and conversions on average.
Should You Rebuild Everything Just to Raise Quality Score?
No.
That is one of the biggest mistakes I see.
Do not rebuild your whole campaign just because one keyword has a 3/10 Quality Score. Google itself says to focus your efforts on high-value areas where you can affect change, rather than wasting time on limited-upside optimizations.
Instead, ask:
- Is this keyword important to my business?
- Does it have enough volume?
- Is it converting?
- Is the low score caused by structure, copy, or landing page mismatch?
- Will improving it likely move performance?
Sometimes the answer is yes. Sometimes the keyword is not important enough to deserve major effort.
My Practical Advice on Low Quality Score
Here is the practical way I look at it:
- Ignore the panic
- Read the component ratings
- Prioritize the most valuable keywords
- Tighten your ad groups
- Write more specific ads
- Improve landing page alignment
- Test, measure, and optimize
That is how you treat Quality Score properly.
Not as a scary number.
But as a signal.
Final Answer: How Important Is Quality Score and Ad Relevance?
They are important, but they are not the whole story.
Quality Score is best used as a diagnostic metric. The visible score is not directly used in the auction, but the things behind it — expected CTR, ad relevance, and landing page experience — do matter in real time. So if you have low Quality Score or low ad relevance, do not ignore it. But also do not overreact to the number alone.
What you should do is optimize the things that improve user experience and search relevance:
- better structure
- better copy
- better keyword grouping
- better landing pages
- better click-through rate
That is where the real win is.
Need Help With Google Ads?
If you need help with Google Ads audit, setup, or campaign management, I would love to help.
We work with businesses to improve campaign structure, ad copy, landing pages, and overall profitability — not just vanity metrics. This matches the positioning already used across your site, where you present Ali Raza as a Google Ads and digital marketing professional offering audits, setup, and management help.
