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SEO Fundamentals

seo-fundamentals

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SKILL.md

Full skill instructions


SEO Fundamentals

Foundational principles for sustainable search visibility. This skill explains how search engines evaluate quality, not tactical shortcuts.


1. E-E-A-T (Quality Evaluation Framework)

E-E-A-T is not a direct ranking factor. It is a framework used by search engines to evaluate content quality, especially for sensitive or high-impact topics.

DimensionWhat It RepresentsCommon Signals
ExperienceFirst-hand, real-world involvementOriginal examples, lived experience, demonstrations
ExpertiseSubject-matter competenceCredentials, depth, accuracy
AuthoritativenessRecognition by othersMentions, citations, links
TrustworthinessReliability and safetyHTTPS, transparency, accuracy

Pages competing in the same space are often differentiated by trust and experience, not keywords.


2. Core Web Vitals (Page Experience Signals)

Core Web Vitals measure how users experience a page, not whether it deserves to rank.

MetricTargetWhat It Reflects
LCP< 2.5sLoading performance
INP< 200msInteractivity
CLS< 0.1Visual stability

Important context:

  • CWV rarely override poor content
  • They matter most when content quality is comparable
  • Failing CWV can hold back otherwise good pages

3. Technical SEO Principles

Technical SEO ensures pages are accessible, understandable, and stable.

Crawl & Index Control

ElementPurpose
XML sitemapsHelp discovery
robots.txtControl crawl access
Canonical tagsConsolidate duplicates
HTTP status codesCommunicate page state
HTTPSSecurity and trust

Performance & Accessibility

FactorWhy It Matters
Page speedUser satisfaction
Mobile-friendly designMobile-first indexing
Clean URLsCrawl clarity
Semantic HTMLAccessibility & understanding

4. Content SEO Principles

Page-Level Elements

ElementPrinciple
Title tagClear topic + intent
Meta descriptionClick relevance, not ranking
H1Page’s primary subject
HeadingsLogical structure
Alt textAccessibility and context

Content Quality Signals

DimensionWhat Search Engines Look For
DepthFully answers the query
OriginalityAdds unique value
AccuracyFactually correct
ClarityEasy to understand
UsefulnessSatisfies intent

5. Structured Data (Schema)

Structured data helps search engines understand meaning, not boost rankings directly.

TypePurpose
ArticleContent classification
OrganizationEntity identity
PersonAuthor information
FAQPageQ&A clarity
ProductCommerce details
ReviewRatings context
BreadcrumbListSite structure

Schema enables eligibility for rich results but does not guarantee them.


6. AI-Assisted Content Principles

Search engines evaluate output quality, not authorship method.

Effective Use

  • AI as a drafting or research assistant
  • Human review for accuracy and clarity
  • Original insights and synthesis
  • Clear accountability

Risky Use

  • Publishing unedited AI output
  • Factual errors or hallucinations
  • Thin or duplicated content
  • Keyword-driven text with no value

7. Relative Importance of SEO Factors

There is no fixed ranking factor order. However, when competing pages are similar, importance tends to follow this pattern:

Relative WeightFactor
HighestContent relevance & quality
HighAuthority & trust signals
MediumPage experience (CWV, UX)
MediumMobile optimization
BaselineTechnical accessibility

Technical SEO enables ranking; content quality earns it.


8. Measurement & Evaluation

SEO fundamentals should be validated using multiple signals, not single metrics.

AreaWhat to Observe
VisibilityIndexed pages, impressions
EngagementClick-through, dwell time
PerformanceCWV field data
CoverageIndexing status
AuthorityMentions and links

Key Principle: Sustainable SEO is built on useful content, technical clarity, and trust over time. There are no permanent shortcuts.

When to Use

This skill is applicable to execute the workflow or actions described in the overview.

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