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Google’s hidden Site Quality Score, Patent US9031929B1, ranks sites by how often people search for your brand name vs. click your pages in results.
In a nutshell, CTR is important.
The more clicks you can acquire, the better your website will rank overall.
When we start our SEO journey, we instinctively aim for the stars, targeting keywords with tens of thousands of monthly searches.
But what if going after those massive keywords is actually hurting our website’s reputation with Google?
To understand why, we need to look at the mechanics behind the Google Site Quality Score Patent. Co-invented by Google geniuses, this patent outlines a system in which Google assigns a sitewide quality score heavily based on user interactions.
The algorithm calculates a score based on the ratio of users explicitly searching for your site to the total number of users who click on your site across all queries.
Google measures how often searchers actively choose your website when it appears in search results.
This makes your overall Click-Through Rate (CTR) across your domain a strong signal of quality, relevance, and authority.
Targeting massive keywords that you lack the authority to rank for actively damages your site’s reputation. Here is the reality of that approach:
The Page 5 Void
Your content gets buried deep in the search results, where users never go.
Tanked CTR
You rack up background impressions just by existing in the index, but your CTR drops to near 0%.
Negative Signals
You are signaling to Google that your page is constantly available as an option, but no one ever chooses it. This drags down your sitewide quality score.
To build real authority, pivot to low-volume, highly specific keywords where you can realistically rank in the top 3. This leverages the patent’s logic directly in your favor:
Capture the Clicks
A 40% CTR on a keyword with 50 monthly searches sends a vastly superior quality signal to Google than a 0.1% CTR on a 50,000-search keyword.
Feed the Algorithm
Every click from a targeted searcher proves to Google that your site successfully satisfies user intent.
Snowball Effect
As you accumulate these high-CTR wins, your sitewide trust increases. Once that foundational quality score is established, your site will naturally begin to rank for bigger, more competitive keywords.
Site Quality Score is strictly site-wide, not page-wide.
It combines clicks and queries from every page on the domain to calculate one overall score: more direct brand/navigational searches relative to total clicks-to-any-page = higher site authority and trust.
No per-page CTR breakdown exists here. P
oor performance across pages drags the whole site’s denominator down, hurting rankings site-wide (“sinking ship” effect).
Page-level signals, such as individual CTR or dwell time, come from other patents and systems. This is why consistent brand strength and quality across your domain lift everything.
Google cannot directly measure whether your content is genuinely useful, but it can measure whether real users find it worth clicking.
When a searcher types a query, sees your result, and skips it in favour of a competitor, that’s a vote of no confidence.
Do that enough times across your entire domain, and Google’s algorithm interprets your site as one that consistently fails to match user intent, regardless of how well-optimised your individual pages might be.
This is why two websites can have identical on-page SEO, yet rank very differently.
The one with a healthier sitewide CTR ratio has quietly earned more trust at the domain level, and that trust acts as a rising tide that lifts all its pages.
Google’s Site Quality Score patent is a reminder that SEO isn’t just about chasing volume — it’s about earning trust through relevance. Every time a searcher sees your page and chooses to click it, you’re sending a positive signal that compounds over time. Every time they scroll past, you’re doing the opposite.
The smartest move for any growing website is to start small and win consistently. Target keywords where you can realistically rank in the top three, capture high click-through rates, and let those wins build your sitewide authority. Once Google’s algorithm recognises your domain as one that users genuinely want, the door to more competitive keywords opens naturally.
The patent makes one thing clear: Google doesn’t just reward websites that appear in search results; it rewards websites that people choose.
What some of our customers had to say:
Yes. If your pages constantly generate impressions but users rarely click on them, it signals to search engines that your result is either irrelevant to the query or unappealing compared to competitors. This can drag down the ranking potential of your entire website over time.
Low-volume keywords are generally less competitive, allowing newer or smaller sites to rank in the top 3 positions. Ranking higher means a vastly improved CTR. A high CTR sends strong positive signals to Google that searchers prefer your content, which raises your sitewide quality score.
To know if your CTR is bad, you first need to know what is normal.
While these numbers fluctuate depending on the industry and the specific search results page, studies show the following average click distribution for non-branded searches:
Position 1: 25% – 30%
Position 2: 15% – 20%
Position 3: 8% – 12%
Positions 4–6: 3% – 6%
Positions 7–10: 1% – 3%
Page 2 and beyond: Less than 1% (Effectively 0%)
This post was written u/WebsiteCatalyst on 20/3/2026.
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