The SEO frameworks and scoring models behind every feature
The Koray Score is a 0-100 composite metric that evaluates content quality using the Five Fundamentals of Topical Authority developed by Koray Tugberk.
Information Gain measures how much unique, original value a page adds beyond what competitors already cover — the key to standing out in search results.
Entity salience measures how important a specific named thing (person, product, organisation) is within a page, using 5 weighted signals from frequency to contextual relevance.
E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) is Google's quality framework. Korvex measures all four dimensions automatically using content analysis and structural signals.
The Five Fundamentals define what a topically authoritative website looks like: Central Entity, Central Search Intent, Source Context, Core Section, and Outer Section.
The Three Axes framework measures topical authority across Vastness (breadth), Depth (expertise per topic), and Connection (internal linking density).
Cost of Retrieval measures how easy it is for search engines to crawl, understand, and index your content. Lower cost = higher rankings.
Semantic Networks analyse how pages connect through internal links, using cosine similarity and the Koray 1-2-3 method to find the highest-value linking opportunities.
SCIS (SEO Continuous Intelligence System) is Korvex's recommendation engine — 18 hypothesis generators analyse your data daily and surface evidence-based, prioritised actions.
Content briefs translate SCIS recommendations into actionable writing guides — complete with keyword targets, competitor analysis, entity requirements, and structural specifications.
Hub-and-Spoke (pillar-cluster) architecture organises content into topical hubs connected by spoke pages, creating the structure that search engines reward with topical authority.
Korvex uses 14 discovery strategies to find content opportunities — from competitor structure analysis and entity variant detection to GSC impression mining and thin content upgrades.
The Tier System gates SCIS recommendations into three progressive levels — Foundation, Growth, and Authority — ensuring you fix fundamentals before pursuing advanced strategies.
Every SCIS recommendation carries a confidence score (evidence quality) and an impact prediction (expected outcome) — both continuously calibrated by real-world results.
The Closed Loop is Korvex's end-to-end system: SCIS generates recommendations → CMS bridge deploys changes → outcome tracker measures impact → predictions calibrate. No manual gap.