Quality Score (QS)

Quality Score is Google’s estimate of how relevant your keyword, ad, and landing page are to a searcher. It is a 1–10 rating, where 10 means “excellent” and 1 means “fix this.”

Three components drive the score:

• Expected CTR — how likely your ad is to be clicked when shown for that keyword.
• Ad relevance — how closely your ad text matches the keyword’s intent.
• Landing page experience — whether the page is useful, fast, and relevant to the query.

Quality Score is a diagnostic, not a KPI. Google explicitly says it is meant to surface improvement opportunities, not to be optimized in isolation. A 10 does not guarantee a win; a 5 does not mean you should pause the keyword.

Google does not publish a raw formula. Quality Score is a relative measure: your keyword’s expected performance compared to other advertisers targeting the same query.

What we know from Google Ads Help

• The score is updated in real time based on the most recent auction data.
• Each component (expected CTR, ad relevance, landing page experience) is rated as Above average, Average, or Below average.
• The 1–10 number is a weighted combination of those ratings, but the weights are opaque.

Important caveats

• Quality Score is keyword-level, not campaign- or ad-group-level.
• It can differ by device, location, and time of day — the score you see in the UI is a historical aggregate.
• A score of 10 does not mean “perfect”; it means “better than most competitors for this query.”

In Google Ads, Quality Score appears as a column next to each keyword. The number alone is not actionable — you need the component statuses (the colored dots or text ratings).

What to look for

• Score ≤ 5 — at least one component is likely “Below average.” Click the status icon to see which one.
• Score 6–7 — average. Look for “Below average” on any component and fix that first.
• Score 8–10 — strong. Do not relax; monitor for drift after landing page or ad copy changes.

Pair Quality Score with

• CTR — a low expected CTR rating often means your ad copy does not match the keyword.
• CPC — a sudden CPC jump without bid changes may indicate a QS drop.
• CVR — a high QS with low CVR points to a landing page mismatch, not an ad problem.

Expected CTR levers

• Write ad copy that includes the keyword or its close variants.
• Use responsive search ads with multiple headlines and descriptions.
• Test call-to-action phrasing that matches search intent (informational vs. transactional).

Ad relevance levers

• Group keywords into tightly themed ad groups (one product or service per group).
• Use exact match and phrase match to avoid serving ads for loosely related queries.
• Include the keyword in the headline when possible.

Landing page experience levers

• Ensure the page loads in under 3 seconds on mobile.
• Match the page content to the ad promise (if the ad says “20% off,” the page should show that offer immediately).
• Remove intrusive interstitials and pop-ups that block content.

Tradeoffs

Optimizing for Quality Score alone can backfire. A common mistake: stuffing keywords into ad copy until it reads unnaturally, which hurts CTR. Another: over-narrowing keyword match types to boost relevance while losing volume. Balance QS improvements with reach and conversion goals.

Quality Score is a diagnostic tool, not a campaign goal. Use it to identify weak spots in keyword-ad-page alignment, then fix those spots with conversion impact in mind.

• Focus on component statuses (expected CTR, ad relevance, landing page experience), not the 1–10 number alone.
• Pair QS with CTR, CPC, and CVR to decide what to optimize.
• Never pause a profitable keyword just because its QS is low — the auction outcome depends on more than QS.