Search Quality Rater

Definition

Search Quality Raters are contractors hired by Google (through third-party vendors) to evaluate the quality of search results and individual web pages. They use the Search Quality Evaluator Guidelines (a publicly available document, updated periodically) to rate pages on two primary dimensions: (1) **Page Quality (PQ)** — how well the page achieves its purpose, using E-E-A-T as the primary framework; (2) **Needs Met (NM)** — how well the page satisfies the searcher's likely intent for a given query. Quality Rater scores are not directly fed into the ranking algorithm — individual page ratings don't change rankings. Instead, the aggregated data from Quality Raters is used to train and validate the machine learning models that power Google's ranking systems. A page that consistently rates poorly in Quality Rater assessments informs what signals correlate with low quality — which the algorithm then learns to detect independently.

Why it matters for SEO

The Search Quality Evaluator Guidelines are the clearest public statement of what Google considers high-quality content. Key signals raters are asked to assess: (1) **E-E-A-T** — Experience, Expertise, Authoritativeness, Trustworthiness (formally added the first "E" for Experience in 2022); (2) **Main Content quality** — originality, accuracy, depth, unique insights; (3) **Supplementary Content** — navigation, ads, and site infrastructure that support or detract from the main content; (4) **Website reputation** — what third parties (reviews, news coverage, industry recognition) say about the site. Understanding the guidelines helps prioritise what signals to build: author pages, credentials, original research, named experts, and editorial standards are all quality signals raters are specifically asked to evaluate.

How DeepSEOAnalysis checks this

The audit evaluates the technical and structural signals most correlated with Quality Rater positive assessments: Article JSON-LD with `author` property (linking content to named authors with credentials), Organization schema with address and reputation signals, FAQPage schema (signals question-answering thoroughness), E-E-A-T content depth indicators (word count, heading structure, FAQ sections, referenced sources), and contact/about page presence (a site with no About page or contact information scores lower on trustworthiness). The guidelines themselves are a useful checklist for editorial decisions the audit cannot evaluate — like whether author credentials are real and verifiable.

Useful tools and resources

• Full on-page SEO audit