The Tier System — Foundation → Growth → Authority

What It Is

The Tier System is Korvex's progressive gating mechanism for recommendations. Instead of overwhelming you with 200+ recommendations at once, SCIS organises its 18 hypothesis generators into three tiers. You must pass quantitative gates to unlock each tier, ensuring your site has solid fundamentals before pursuing advanced growth and authority-building strategies.

Why It Matters for Your SEO

Attempting authority-building content strategies on a site with broken technical SEO is like building a penthouse on sand. The Tier System prevents this by ensuring:

Foundation fixes (technical health, HTML structure, basic content) are completed first
Growth optimisations (GSC opportunities, content decay recovery) are unlocked next
Authority strategies (advanced Koray analysis, content planning, entity-level optimisation) come last

This sequential approach is more efficient and produces better outcomes than scattered effort across all areas.

How Korvex Measures It

Tier Progression

Foundation (9 generators) → Growth (5 generators) → Authority (6 generators)

Gate Requirements

Signal	Growth Gate	Authority Gate
Indexing Coverage	≥ 75%	≥ 85%
Tier Completion Rate	≥ 60%	≥ 60%
Average Koray Score	≥ 55	≥ 70

What Each Gate Measures

Indexing Coverage: urls_indexed / urls_submitted × 100 from GSC sitemap coverage (last 7 days)
Tier Completion Rate: percentage of recommendations in the current tier marked as completed or deployed
Average Koray Score: mean koray_total_score across active, non-competitor pages with valid scores

How to Improve Your Score

Focus on Foundation recommendations first — technical SEO fixes, HTML structure, and basic content improvements
Improve indexing coverage — fix crawl errors, submit missing pages to sitemap, resolve exclusions in GSC
Complete or dismiss recommendations — the completion gate counts both completed and dismissed items
Raise your average Koray Score — improving your worst pages has more impact than perfecting good ones
Check progress in Client Settings — the tier status shows exactly which gates you've passed

<details> <summary>Technical Deep Dive</summary>

Generator-to-Tier Mapping

Foundation (9 generators):

TechnicalSEOGenerator
SiteHealthGenerator
HTMLStructureGenerator
LinkingGenerator
ContentGenerator
EcommerceProductSchemaGenerator
EcommerceCollectionOptimizer
ProductDescriptionEnhancer
SitemapAuditGenerator

Growth (5 generators):

GSCGenerator
SentenceLevelOptimizer
SpecificityMismatchGenerator
ContentDecayRecoveryGenerator
CannibalizationRecoveryGenerator

Authority (6 generators):

KorayV2Generator
StrategicContentPlanner
ContentBriefHypothesisGenerator
HubPillarClassifier
LongtailOpportunityMiner
EntityQuestionHypothesisGenerator

Gate Signal Sources

Indexing coverage: SUM(urls_indexed) / SUM(urls_submitted) × 100 from gsc_sitemap_coverage (last 7 days)
Completion rate: COUNT(workflow_status IN ('completed', 'deployed')) / COUNT(*) from page_recommendations for the tier
Koray average: AVG(koray_total_score) from page_scores WHERE is_competitor = false AND koray_total_score > 0 AND analysis_status NOT IN ('junk', 'unscorable', 'utility')

Override Mechanism

Per-client gate_config JSONB on client_strategy_tiers table
Active strategy model's tier_gate overrides (highest priority)
Readiness statuses: not_ready → ready → promoted

SCIS — the tier system controls which SCIS generators are active
The Koray Score — the average Koray Score is a gate signal
Confidence and Impact — tier-aware predictions

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