Entity Map

The self-declared knowledge graph of Search Central Update, structured for AI agents, LLMs, and semantic search systems. Every entity carries a type, tier, relations, and quoted evidence.

Publisher: Search Central Update Entities: 19 Updated: 2026-08-09 Machine-readable JSON →

Search Central Update

Organization Tier 1 · Hard

SEO education and tools publisher offering 37 free DataForSEO-powered tools and guides on semantic SEO, AI search optimization, technical SEO, content strategy, and link building.

Relations

  • OPERATED_BY → Oddtusk
  • PUBLISHED_BY → Sanjay Ananda
  • OFFERS → 37 Free SEO Tools
  • COVERS → Semantic SEO

Evidence

"37 free SEO tools powered by live DataForSEO data"
https://searchcentralupdate.com/ · retrieved 2026-08-09
/

Sanjay Ananda

Person Tier 1 · Hard

SEO strategist and AEO specialist. Founder of Oddtusk and author of all Search Central Update content.

oddtusk.com/entitymap/ · twitter.com/sanjayananda_ · linkedin.com/in/sanjayananda

Relations

  • FOUNDER_OF → Oddtusk
  • AUTHORS → Search Central Update

Evidence

"Built by Sanjay Ananda. All tools free forever."
https://searchcentralupdate.com/ (footer) · retrieved 2026-08-09
/about/

Oddtusk

Organization Tier 1 · Hard

Digital marketing company founded and managed by Sanjay Ananda, offering SEO services, paid media advertising, and D2C brand scaling.

Wikidata Q140090806 · oddtusk.com/entitymap/

Relations

  • OPERATES → Search Central Update
  • FOUNDED_BY → Sanjay Ananda

Evidence

"Oddtusk, Founded & managed by Sanjay"
https://searchcentralupdate.com/ (footer) · retrieved 2026-08-09
https://oddtusk.com/

37 Free SEO Tools

Product Tier 1 · Hard

Suite of 37 browser-based SEO tools covering rank checking, AI visibility, backlink analysis, site speed, schema generation, and keyword research, powered by live DataForSEO data.

Relations

  • OFFERED_BY → Search Central Update
  • DEPENDS_ON → DataForSEO

Evidence

"29 Free SEO Tools... expanded to 37"
https://searchcentralupdate.com/tools/ · retrieved 2026-08-09
/tools/

DataForSEO

Platform Tier 2 · Structural

SEO data API provider supplying live SERP, keyword, backlink, and on-page data.

Relations

  • POWERS → 37 Free SEO Tools

Evidence

"powered by live DataForSEO data"
https://searchcentralupdate.com/ · retrieved 2026-08-09
https://dataforseo.com/

Semantic SEO

Concept Tier 2 · Structural

SEO discipline that optimizes for meaning: entities, attributes, relationships, topical maps, and search intent rather than isolated keywords.

Wikidata Q138974568

Relations

  • RELATES_TO → Entity SEO
  • ENABLES → Topical Authority
  • COVERED_BY → Search Central Update

Evidence

"Semantic SEO hub covering entities, topical maps, and the knowledge graph"
https://searchcentralupdate.com/semantic-seo/ · retrieved 2026-08-09
/semantic-seo/

Entity SEO

Concept Tier 2 · Structural

Optimization approach centered on named entities, their attributes (EAV model), salience, and Knowledge Graph representation.

Relations

  • PART_OF → Semantic SEO
  • DEPENDS_ON → Google Knowledge Graph

Evidence

"Entity-Based SEO Guide"
https://searchcentralupdate.com/entity-based-seo/ · retrieved 2026-08-09
/entity-based-seo/

Answer Engine Optimization (AEO)

Concept Tier 2 · Structural

Optimizing content to be selected as the direct answer by answer surfaces: AI Overviews, featured snippets, voice assistants, and AI chatbots.

Relations

  • SUBSUMED_BY → Generative Engine Optimization (GEO) (Google's Knowledge Graph resolves the query 'answer engine optimization' to the GEO entity)

Evidence

"Knowledge Graph lookup for 'answer engine optimization' returned entity kg:/g/11md5185sw (Generative engine optimization)"
Google Knowledge Graph Search API, retrieved 2026-08-09 · retrieved 2026-08-09
/answer-engine-optimization/

Generative Engine Optimization (GEO)

Concept Tier 2 · Structural

The practice of structuring digital content and managing online presence to improve visibility in responses generated by generative AI systems.

Google KG kg:/g/11md5185sw · en.wikipedia.org/wiki/Generative_engine_optimization

Relations

  • RELATES_TO → Answer Engine Optimization (AEO)
  • MEASURED_BY → 37 Free SEO Tools

Evidence

"Generative engine optimization is the practice of structuring digital content... (Knowledge Graph detailed description)"
Google Knowledge Graph, kg:/g/11md5185sw · retrieved 2026-08-09
/generative-engine-optimization-guide/

Topical Authority

Concept Tier 2 · Structural

A site's earned status as the comprehensive source on a knowledge domain, built through complete topical coverage, entity depth, and interlinked content networks.

Relations

  • BUILT_VIA → Topical Map
  • PART_OF → Semantic SEO

Evidence

"Topical Authority Guide"
https://searchcentralupdate.com/topical-authority-seo/ · retrieved 2026-08-09
/topical-authority-seo/

Topical Map

Methodology Tier 2 · Structural

A structured plan of every page a site needs to cover a knowledge domain: clusters, hubs, spokes, queries, entities, and interlinks, bounded by the domain border.

Relations

  • PRODUCES → Topical Authority

Evidence

"117-node evidence-backed topical map governs this site's architecture"
https://searchcentralupdate.com/entitymap/ · retrieved 2026-08-09
/semantic-seo/

Google Knowledge Graph

System Tier 2 · Structural

Google's entity database powering Knowledge Panels and entity understanding in Search, storing entities, attributes, and relationships.

Relations

  • VERIFIES → Entity SEO

Evidence

"Knowledge Panel Checker queries live SERPs for knowledge_graph result items"
https://searchcentralupdate.com/tools/entity-checker/ · retrieved 2026-08-09
/semantic-seo/

llms.txt

Standard Tier 2 · Structural

Proposed markdown standard by Jeremy Howard (Answer.AI, September 2024) placed at /llms.txt to curate a site's content for large language model consumption.

Relations

  • IMPLEMENTED_BY → Search Central Update (live at https://searchcentralupdate.com/llms.txt)

Evidence

"llms.txt, The Complete Guide to the AI Content Standard"
https://searchcentralupdate.com/ai-search/llms-txt/ · retrieved 2026-08-09
/ai-search/llms-txt/

Core Web Vitals

Standard Tier 2 · Structural

Google's page experience metrics: LCP (under 2.5s), CLS (under 0.1), and INP (under 200ms, replaced FID in 2024).

Relations

  • MEASURED_BY → 37 Free SEO Tools (Website Speed Test tool runs full Lighthouse audits)

Evidence

"Full Google Lighthouse audit... Core Web Vitals"
https://searchcentralupdate.com/tools/website-speed-test/ · retrieved 2026-08-09
/technical-seo/

Domain Rank

Metric Tier 2 · Structural

DataForSEO's 0-1000 link authority score based on referring domain quantity and quality, comparable in purpose to Moz DA and Ahrefs DR.

Relations

  • COMPUTED_BY → DataForSEO

Evidence

"rank values on a 0-1,000 scale based on referring domains"
https://searchcentralupdate.com/tools/domain-authority-checker/ · retrieved 2026-08-09
/link-building/domain-authority/

Content Decay

Concept Tier 3 · Interpretive

The gradual traffic and ranking loss of aging content as freshness fades, competitors publish, and search intent shifts; countered by scheduled refresh cycles.

Relations

  • DETECTED_BY → 37 Free SEO Tools (Content Decay Detector tool)
  • MITIGATED_BY → Search Central Update (daily publishing routine includes decay refresh)

Evidence

"Content Decay Recovery guide and Content Decay Detector tool"
https://searchcentralupdate.com/content-decay-recovery/ · retrieved 2026-08-09
/content-decay-recovery/

E-E-A-T

Concept Tier 3 · Interpretive

Google's quality framework: Experience, Expertise, Authoritativeness, and Trustworthiness, evaluated through author entities, credentials, and consistent authorship.

Relations

  • SIGNALLED_BY → Sanjay Ananda (consistent Person schema authorship across all pages)

Evidence

"author Person Sanjay Ananda on every article schema"
https://searchcentralupdate.com/ (site-wide JSON-LD) · retrieved 2026-08-09
/content-strategy/

Bhubaneswar

Place Tier 1 · Hard

City in Odisha, India; operating base of Oddtusk.

Relations

  • LOCATION_OF → Oddtusk

Evidence

"Bhubaneswar listed as a Place entity in the Oddtusk entity map"
https://oddtusk.com/entitymap/ · retrieved 2026-08-09