What Is Quality Score in Google Ads?

Quality Score is a 1-10 rating Google Ads calculates for every keyword in an account with active campaigns. Google describes it in its own documentation as a diagnostic tool meant to give advertisers a sense of how their ad quality compares to other advertisers, not as a performance indicator to chase for its own sake. The score shows up as a column in the keywords table inside the Google Ads interface; a dash ("—") means there isn't yet enough data to calculate it.

The value is built from three official components, each rated as "above average," "average," or "below average" against other advertisers who competed for the same keyword over the past 90 days.

Expected CTR measures how likely that specific ad is to get a click when shown, compared with similar ads under similar circumstances. Ad relevance judges how closely the ad's text matches the real intent behind the user's search. And landing page experience evaluates whether the destination page is relevant and useful to someone who just clicked, which covers load speed, mobile-friendly design, and whether the page delivers on what the ad promised.

These three components, whether strong or weak, are what determine the visible 1-10 score. Improving them is the only real way to move Quality Score; there's no direct account setting that raises the number without touching one of the three.

Quality Score shouldn't be confused with optimization score, a different metric that shows up in the same Google Ads interface. Optimization score is expressed as a percentage from 0 to 100%, applies to an entire account or campaign rather than a single keyword, and reflects how well a campaign is set up based on its history, its settings, and a running list of Google's recommendations, updated in real time. These are two separate scales answering two separate questions: one measures ad quality against a specific keyword, the other evaluates the overall setup of a campaign or an entire account.

Here's the most common mix-up around this term: Quality Score is not, under any circumstances, an official ranking factor in Google's organic search results. It's a metric that exists exclusively inside Google Ads, calculated only for keywords tied to an active paid campaign. A page that has never run an ad has no Quality Score, simply because the concept doesn't apply outside the ad auction.

Google confirms this explicitly in its own documentation on measuring paid and organic results: "Investment in paid search has no impact on your organic search ranking." The company maintains a strict separation between its search business and its advertising business, and that separation includes any internal data point from Google Ads campaigns, Quality Score among them.

The confusion usually comes from two surface-level similarities. The first is the scale: both Quality Score and some content-quality tools express themselves in numbers or categories, which invites the assumption that they're measuring the same thing. The second is that two of its three components, relevance and landing page experience, sound like standard on-page SEO vocabulary. But Google's organic search algorithm evaluates hundreds of entirely different signals, including domain authority, backlinks, a site's technical structure, and editorial content quality, none of which pull a single data point from a Google Ads account.

Put differently: raising a keyword's Quality Score can lower what you pay per click in Google Ads, but it doesn't move that same URL's organic position by a single spot in search. Google treats these, by design, as two strictly separate systems.

The same separation holds in reverse: pausing or deleting Google Ads campaigns doesn't hurt a site's organic ranking, just as turning them on or raising the budget doesn't improve it. Neither ad spend nor a Google Ads account's Quality Score has any bearing on how Google crawls, indexes, or ranks a page in organic results.

The number shown in the interface is a diagnosis, not a dial you can turn up directly. Google says as much in its own help documentation: Quality Score is not a key performance indicator and shouldn't be optimized directly, as if it were a campaign's actual goal. It exists to flag which specific component, expected CTR, relevance, or landing page, a keyword is struggling on, not to be chased as a number in itself.

The reason it matters in practice comes down to economics, and that's where it connects directly to CPC: Google rewards relevant ads with a lower cost per click for the same position, because the auction system weighs quality as heavily as the bid. The exact mechanics of that auction, including Ad Rank and the gap between Max. CPC and actual CPC, are covered in detail in the CPC article; the point to keep here is that a higher Quality Score tends to translate into cheaper clicks, not that the number itself is literally plugged into the auction formula. Across many keywords and a long campaign run, that effect adds up: an account with consistently solid component ratings pays noticeably less for the same visibility than one buying that same position purely through higher bids.

Improving each component comes down to concrete moves. For expected CTR: write headlines and descriptions that answer the keyword directly, test several ad variants and pause the weaker ones, and use ad extensions that take up more visual space and give people extra reasons to click. For ad relevance: group keywords into small, tightly themed ad groups instead of mixing very different terms under one generic ad, and keep negative keywords current so the ad doesn't show for searches it doesn't actually fit. For landing page experience: make sure the destination page loads fast, is mobile-optimized, and visibly delivers what the ad promised, rather than redirecting to a generic homepage when the ad was about a specific product; a clear call to action and content that matches the search without extra scrolling both feed into this component too.

• Check the status of each component (expected CTR, relevance, landing page experience) in the Google Ads diagnostic column before touching any bids.
• Group keywords by actual search intent, not just broad topic; small, coherent ad groups usually improve relevance without rewriting a single line of ad copy.
• Match the ad text and landing page headline to the exact keyword that triggers the ad.
• Test at least two or three ad variants per group and let the system learn which one earns the better real CTR.
• Check the landing page's load speed and mobile experience; a slow page drags down the experience component even when the content itself is solid.
• Read Quality Score alongside actual CPC and CPA, never as an isolated figure worth maximizing on its own.

• Treating Quality Score as an SEO factor and expecting a higher score to improve the page's organic ranking.
• Chasing the 1-10 number itself with cosmetic tweaks instead of fixing the specific component that's weak.
• Sending traffic from different campaigns to the same generic landing page, ignoring the match with the keyword.
• Ignoring the per-component diagnosis and looking only at the final number, which can hide a real landing page problem behind an acceptable CTR.
• Raising the bid to compensate for a low Quality Score instead of fixing the ad or the page, which drives up CPC without solving the underlying problem.