Skill: SEO Audit for Concept Pages

Use this skill to perform a focused SEO audit on concept documentation pages for the 33 JavaScript Concepts project. The goal is to maximize search visibility for JavaScript developers.

When to Use

•Before publishing a new concept page

•When optimizing underperforming pages

•Periodic content audits

•After major content updates

•When targeting new keywords

Goal

Each concept page should rank for searches like:

•"what is [concept] in JavaScript"

•"how does [concept] work in JavaScript"

•"[concept] JavaScript explained"

•"[concept] JavaScript tutorial"

•"[concept] JavaScript example"

---

SEO Audit Methodology

Follow these five steps for a complete SEO audit.

Step 1: Identify Target Keywords

Before auditing, identify the keyword cluster for the concept.

Keyword Cluster Template

| Type | Pattern | Example (Closures) |

|------|---------|-------------------|

| Primary | [concept] JavaScript | closures JavaScript |

| What is | what is [concept] in JavaScript | what is a closure in JavaScript |

| How does | how does [concept] work | how do closures work |

| How to | how to use/create [concept] | how to use closures |

| Why | why use [concept] | why use closures JavaScript |

| Examples | [concept] examples | closure examples JavaScript |

| vs | [concept] vs [related] | closures vs scope |

| Interview | [concept] interview questions | closure interview questions |

Step 2: On-Page SEO Audit

Check all on-page SEO elements systematically.

Step 3: Featured Snippet Optimization

Verify content is structured to win featured snippets.

Step 4: Internal Linking Audit

Check the internal link structure.

Step 5: Generate Report

Document findings using the report template.

---

Keyword Clusters by Concept

Use these pre-built keyword clusters for each concept.

| Type | Keywords |

|------|----------|

| Primary | JavaScript call stack, call stack JavaScript |

| What is | what is the call stack in JavaScript |

| How does | how does the call stack work |

| Error | maximum call stack size exceeded, stack overflow JavaScript |

| Visual | call stack visualization, call stack explained |

| Interview | call stack interview questions JavaScript |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript primitive types, primitives in JavaScript |

| What are | what are primitive types in JavaScript |

| List | JavaScript data types, types in JavaScript |

| vs | primitives vs objects JavaScript |

| typeof | typeof JavaScript, JavaScript typeof operator |

| Interview | JavaScript types interview questions |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript value vs reference, pass by reference JavaScript |

| What is | what is pass by value in JavaScript |

| How does | how does JavaScript pass objects |

| Comparison | value types vs reference types JavaScript |

| Copy | how to copy objects JavaScript, deep copy JavaScript |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript type coercion, type conversion JavaScript |

| What is | what is type coercion in JavaScript |

| How does | how does type coercion work |

| Implicit | implicit type conversion JavaScript |

| Explicit | explicit type conversion JavaScript |

| Interview | type coercion interview questions |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript equality, == vs === JavaScript |

| What is | what is the difference between == and === |

| Comparison | loose equality vs strict equality JavaScript |

| Best practice | when to use == vs === |

| Interview | JavaScript equality interview questions |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript closures, JavaScript scope |

| What is | what is a closure in JavaScript, what is scope |

| How does | how do closures work, how does scope work |

| Types | types of scope JavaScript, lexical scope |

| Use cases | closure use cases, why use closures |

| Interview | closure interview questions JavaScript |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript event loop, event loop JavaScript |

| What is | what is the event loop in JavaScript |

| How does | how does the event loop work |

| Visual | event loop visualization, event loop explained |

| Related | call stack event loop, task queue JavaScript |

| Interview | event loop interview questions |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript Promises, Promises in JavaScript |

| What is | what is a Promise in JavaScript |

| How to | how to use Promises, how to chain Promises |

| Methods | Promise.all, Promise.race, Promise.allSettled |

| Error | Promise error handling, Promise catch |

| vs | Promises vs callbacks, Promises vs async await |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript async await, async await JavaScript |

| What is | what is async await in JavaScript |

| How to | how to use async await, async await tutorial |

| Error | async await error handling, try catch async |

| vs | async await vs Promises |

| Interview | async await interview questions |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript this keyword, this in JavaScript |

| What is | what is this in JavaScript |

| How does | how does this work in JavaScript |

| Binding | call apply bind JavaScript, this binding |

| Arrow | this in arrow functions |

| Interview | this keyword interview questions |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript prototype, prototype chain JavaScript |

| What is | what is a prototype in JavaScript |

| How does | how does prototype inheritance work |

| Chain | prototype chain explained |

| vs | prototype vs class JavaScript |

| Interview | prototype interview questions JavaScript |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript DOM, DOM manipulation JavaScript |

| What is | what is the DOM in JavaScript |

| How to | how to manipulate DOM JavaScript |

| Methods | getElementById, querySelector JavaScript |

| Events | DOM events JavaScript, event listeners |

| Performance | DOM performance, virtual DOM vs DOM |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript higher order functions, higher order functions |

| What are | what are higher order functions |

| Examples | map filter reduce JavaScript |

| How to | how to use higher order functions |

| Interview | higher order functions interview |

</Accordion>

| Type | Keywords |

|------|----------|

| Primary | JavaScript recursion, recursion in JavaScript |

| What is | what is recursion in JavaScript |

| How to | how to write recursive functions |

| Examples | recursion examples JavaScript |

| vs | recursion vs iteration JavaScript |

| Interview | recursion interview questions |

</Accordion>

</AccordionGroup>

---

Audit Checklists

Title Tag Checklist (4 points)

|---|-------|--------|---------------|

| 1 | Length 50-60 characters | 1 | Count characters in title frontmatter |

| 2 | Primary keyword in first half | 1 | Concept name appears early |

| 3 | Ends with "in JavaScript" | 1 | Check title ending |

| 4 | Contains compelling hook | 1 | Promises value/benefit to reader |

Scoring:

•4/4: ✅ Excellent

•3/4: ⚠️ Good, minor improvements possible

•0-2/4: ❌ Needs significant work

Title Formula:

[Concept]: [What You'll Understand] in JavaScript

Good Examples:

| Concept | Title (with character count) |

|---------|------------------------------|

| Closures | "Closures: How Functions Remember Their Scope in JavaScript" (58 chars) |

| Event Loop | "Event Loop: How Async Code Actually Runs in JavaScript" (54 chars) |

| Promises | "Promises: Handling Async Operations in JavaScript" (49 chars) |

| DOM | "DOM: How Browsers Represent Web Pages in JavaScript" (51 chars) |

Bad Examples:

| Issue | Bad Title | Better Title |

|-------|-----------|--------------|

| Too short | "Closures" | "Closures: How Functions Remember Their Scope in JavaScript" |

| Too long | "Understanding JavaScript Closures and How They Work with Examples" (66 chars) | "Closures: How Functions Remember Their Scope in JavaScript" (58 chars) |

| No hook | "JavaScript Closures" | "Closures: How Functions Remember Their Scope in JavaScript" |

| Missing "JavaScript" | "Understanding Closures and Scope" | Add "in JavaScript" at end |

---

`Meta Description Checklist (4 points)`

| # | Check | Points | How to Verify |

|---|-------|--------|---------------|

| 1 | Length 150-160 characters | 1 | Count characters in description frontmatter |

| 2 | Starts with action word | 1 | "Learn", "Understand", "Discover" (NOT "Master") |

| 3 | Contains primary keyword | 1 | Concept name + "JavaScript" present |

| 4 | Promises specific value | 1 | Lists what reader will learn |

Description Formula:

[Action word] [what it is] in JavaScript. [Specific things they'll learn]: [topic 1], [topic 2], and [topic 3].

Good Examples:

| Concept | Description |

|---------|-------------|

| Closures | "Learn JavaScript closures and how functions remember their scope. Covers lexical scoping, practical use cases, memory considerations, and common closure patterns." (159 chars) |

| Event Loop | "Discover how the JavaScript event loop manages async code execution. Understand the call stack, task queue, microtasks, and why JavaScript is single-threaded but non-blocking." (176 chars - trim!) |

| DOM | "Learn how the DOM works in JavaScript. Understand how browsers represent HTML as a tree, select and manipulate elements, traverse nodes, and optimize rendering." (162 chars) |

Bad Examples:

| Issue | Bad Description | Fix |

|-------|-----------------|-----|

| Too short | "Learn about closures" | Expand to 150-160 chars with specifics |

| Starts with "Master" | "Master JavaScript closures..." | "Learn JavaScript closures..." |

| Too vague | "A guide to closures" | List specific topics covered |

| Missing keyword | "Functions can remember things" | Include "closures" and "JavaScript" |

---

`Keyword Placement Checklist (5 points)`

| # | Check | Points | How to Verify |

|---|-------|--------|---------------|

| 1 | Primary keyword in title | 1 | Check frontmatter title |

| 2 | Primary keyword in meta description | 1 | Check frontmatter description |

| 3 | Primary keyword in first 100 words | 1 | Check opening paragraphs |

| 4 | Keyword in at least one H2 heading | 1 | Scan all ## headings |

| 5 | No keyword stuffing | 1 | Content reads naturally |

Keyword Placement Map:

┌─────────────────────────────────────────────────────────────────────────┐

│ KEYWORD PLACEMENT │

├─────────────────────────────────────────────────────────────────────────┤

│ │

│ 🔴 CRITICAL (Must have keyword) │

│ ───────────────────────────────── │

│ • title frontmatter │

│ • description frontmatter │

│ • First paragraph (within 100 words) │

│ • At least one H2 heading │

│ │

│ 🟡 RECOMMENDED (Include naturally) │

│ ────────────────────────────────── │

│ • "What you'll learn" Info box │

│ • H3 subheadings │

│ • Key Takeaways section │

│ • First sentence after major H2s │

│ │

│ ⚠️ AVOID │

│ ───────── │

│ • Same phrase >4 times per 1000 words │

│ • Forcing keywords where pronouns work better │

│ • Awkward sentence structures to fit keywords │

│ │

└─────────────────────────────────────────────────────────────────────────┘

---

`Content Structure Checklist (6 points)`

| # | Check | Points | How to Verify |

|---|-------|--------|---------------|

| 1 | Opens with question hook | 1 | First paragraph asks engaging question |

| 2 | Code example in first 200 words | 1 | Simple example appears early |

| 3 | "What you'll learn" Info box | 1 | <Info> component after opening |

| 4 | Short paragraphs (2-4 sentences) | 1 | Scan content for long blocks |

| 5 | 1,500+ words | 1 | Word count check |

| 6 | Key terms bolded on first mention | 1 | Important terms use bold |

Content Structure Template:

│ IDEAL PAGE STRUCTURE │

│ │

│ 1. QUESTION HOOK (First 50 words) │

│ "How does JavaScript...? Why do...?" │

│ │

│ 2. BRIEF ANSWER + CODE EXAMPLE (Words 50-200) │

│ Quick explanation + simple code demo │

│ │

│ 3. "WHAT YOU'LL LEARN" INFO BOX │

│ 5-7 bullet points │

│ │

│ 4. PREREQUISITES WARNING (if applicable) │

│ Link to required prior concepts │

│ │

│ 5. MAIN CONTENT SECTIONS (H2s) │

│ Each H2 answers a question or teaches a concept │

│ Include code examples, diagrams, tables │

│ │

│ 6. COMMON MISTAKES / GOTCHAS SECTION │

│ What trips people up │

│ │

│ 7. KEY TAKEAWAYS │

│ 8-10 numbered points summarizing everything │

│ │

│ 8. TEST YOUR KNOWLEDGE │

│ 5-6 Q&A accordions │

│ │

│ 9. RELATED CONCEPTS │

│ 4 cards linking to related topics │

│ │

│ 10. RESOURCES (Reference, Articles, Videos) │

│ MDN links, curated articles, videos │

│ │

---

`Featured Snippet Checklist (4 points)`

| # | Check | Points | How to Verify |

|---|-------|--------|---------------|

| 1 | "What is X" has 40-60 word definition | 1 | Count words in first paragraph after "What is" H2 |

| 2 | At least one H2 is phrased as question | 1 | Check for "What is", "How does", "Why" H2s |

| 3 | Numbered steps for "How to" content | 1 | Uses <Steps> component or numbered list |

| 4 | Comparison tables (if applicable) | 1 | Tables for "X vs Y" content |

Featured Snippet Patterns:

│ FEATURED SNIPPET FORMATS │

│ │

│ QUERY TYPE WINNING FORMAT YOUR CONTENT │

│ ─────────── ────────────── ──────────── │

│ │

│ "What is X" Paragraph 40-60 word definition │

│ after H2, bold keyword │

│ │

│ "How to X" Numbered list <Steps> component or │

│ 1. 2. 3. markdown │

│ │

│ "X vs Y" Table | Feature | X | Y | │

│ comparison table │

│ │

│ "Types of X" Bullet list - Type 1 — desc │

│ - Type 2 — desc │

│ │

│ "[X] examples" Code block ```javascript │

│ + explanation // example code │

│ │

Definition Paragraph Example (40-60 words):

`What is a Closure in JavaScript?`

A closure is a function that retains access to variables from its outer

(enclosing) scope, even after that outer function has finished executing.

Closures are created every time a function is created in JavaScript, allowing

inner functions to "remember" and access their lexical environment.

(This is 52 words - perfect for a featured snippet)

---

`Internal Linking Checklist (4 points)`

| # | Check | Points | How to Verify |

|---|-------|--------|---------------|

| 1 | 3-5 related concepts linked in body | 1 | Count /concepts/ links in prose |

| 2 | Descriptive anchor text | 1 | No "click here", "here", "this" |

| 3 | Prerequisites in Warning box | 1 | <Warning> with links at start |

| 4 | Related Concepts section has 4 cards | 1 | <CardGroup> at end with 4 Cards |

Good Anchor Text:

| ❌ Bad | ✓ Good |

|--------|--------|

| "click here" | "event loop concept" |

| "here" | "JavaScript closures" |

| "this article" | "our Promises guide" |

| "read more" | "understanding the call stack" |

Link Placement Strategy:

<Warning>

Prerequisite: This guide assumes you understand Promises

and the Event Loop. Read those first if needed.

</Warning>

When the callback finishes, it's added to the task queue — managed by

the event loop.

<CardGroup cols={2}>

<Card title="Promises" icon="handshake" href="/concepts/promises">

async/await is built on top of Promises

</Card>

</CardGroup>

---

`Technical SEO Checklist (3 points)`

| # | Check | Points | How to Verify |

|---|-------|--------|---------------|

| 1 | Single H1 per page | 1 | Only one # heading (the title) |

| 2 | URL slug contains keyword | 1 | /concepts/closures not /concepts/topic-1 |

| 3 | No orphan pages | 1 | Page is linked from at least one other page |

H1 Rule:

Every page should have exactly ONE H1 (your main title). This is critical for SEO:

•The H1 tells Google what the page is about

•Multiple H1s confuse search engines about page hierarchy

•All other headings should be H2 (##) and below

•The H1 should contain your primary keyword

`Closures in JavaScript ← This is your H1 (only one!)`

`What is a Closure? ← H2 for sections`

`Lexical Scope ← H3 for subsections`

`How Closures Work ← Another H2`

URL/Slug Best Practices:

| ✅ Good | ❌ Bad |

|---------|--------|

| /concepts/closures | /concepts/c1 |

| /concepts/event-loop | /concepts/topic-7 |

| /concepts/type-coercion | /concepts/abc123 |

| /concepts/async-await | /concepts/async_await |

Rules for slugs:

•Include primary keyword — The concept name should be in the URL

•Use hyphens, not underscores — event-loop not event_loop

•Keep slugs short and readable — Under 50 characters

•No UUIDs, database IDs, or random strings

•Lowercase only — /concepts/Event-Loop should be /concepts/event-loop

Orphan Page Detection:

An orphan page has no internal links pointing to it from other pages. This hurts SEO because:

•Google may not discover or crawl it frequently

•It signals the page isn't important to your site structure

•Users can't navigate to it naturally

•Link equity doesn't flow to the page

How to check for orphan pages:

1. Search the codebase for links to this concept: grep -r "/concepts/[slug]" docs/

2. Verify it appears in at least one other concept's "Related Concepts" section

3. Check that pages listing it as a prerequisite link back appropriately

4. Ensure it's included in the navigation (docs.json)

Fixing orphan pages:

•Add the concept to related pages' "Related Concepts" CardGroup

•Link to it naturally in body content of related concepts

•Ensure bidirectional linking (if A links to B, B should link back to A where relevant)

---

`Scoring System`

`Total Points Available: 30`

| Category | Max Points |

|----------|------------|

| Title Tag | 4 |

| Meta Description | 4 |

| Keyword Placement | 5 |

| Content Structure | 6 |

| Featured Snippets | 4 |

| Internal Linking | 4 |

| Technical SEO | 3 |

| Total | 30 |

`Score Interpretation`

|-------|------------|--------|--------|

| 27-30 | 90-100% | ✅ Excellent | Ready to publish |

| 23-26 | 75-89% | ⚠️ Good | Minor optimizations needed |

| 17-22 | 55-74% | ⚠️ Fair | Several improvements needed |

| 0-16 | <55% | ❌ Poor | Significant work required |

---

`Common SEO Issues and Fixes`

`Title Tag Issues`

| Issue | Current | Fix |

|-------|---------|-----|

| Too short (<50 chars) | "Closures" (8) | "Closures: How Functions Remember Their Scope in JavaScript" (58) |

| Too long (>60 chars) | "Understanding JavaScript Closures and How They Work with Examples" (66) | "Closures: How Functions Remember Their Scope in JavaScript" (58) |

| Missing keyword | "Understanding Scope" | Add concept name: "Closures: Understanding Scope in JavaScript" |

| No hook | "JavaScript Closures" | Add benefit: "Closures: How Functions Remember Their Scope in JavaScript" |

| Missing "JavaScript" | "Closures Explained" | Add at end: "Closures Explained in JavaScript" |

`Meta Description Issues`

| Issue | Current | Fix |

|-------|---------|-----|

| Too short (<120 chars) | "Learn about closures" (20) | Expand with specifics to 150-160 chars |

| Too long (>160 chars) | [Gets truncated] | Edit ruthlessly, keep key information |

| Starts with "Master" | "Master JavaScript closures..." | "Learn JavaScript closures..." |

| No keyword | "Functions that remember" | Include "closures" and "JavaScript" |

| Too vague | "A guide to closures" | List specific topics: "Covers X, Y, and Z" |

`Content Structure Issues`

| Issue | Fix |

|-------|-----|

| No question hook | Start with "How does...?" or "Why...?" |

| Code example too late | Move simple example to first 200 words |

| Missing Info box | Add <Info> with "What you'll learn" |

| Long paragraphs | Break into 2-4 sentence chunks |

| Under 1,500 words | Add more depth, examples, edge cases |

| No bolded terms | Bold key concepts on first mention |

`Featured Snippet Issues`

| Issue | Fix |

|-------|-----|

| No "What is" definition | Add 40-60 word definition paragraph |

| Definition too long | Tighten to 40-60 words |

| No question H2s | Add "What is X?" or "How does X work?" H2 |

| Steps not numbered | Use <Steps> or numbered markdown |

| No comparison tables | Add table for "X vs Y" sections |

`Internal Linking Issues`

| Issue | Fix |

|-------|-----|

| No internal links | Add 3-5 links to related concepts |

| Bad anchor text | Replace "click here" with descriptive text |

| No prerequisites | Add <Warning> with prerequisite links |

| Empty Related Concepts | Add 4 Cards linking to related topics |

`Technical SEO Issues`

| Issue | Fix |

|-------|-----|

| Multiple H1 tags | Keep only one # heading (the title), use ## for all sections |

| Slug missing keyword | Rename file to include concept name (e.g., closures.mdx) |

| Orphan page | Add links from related concept pages' body or Related Concepts section |

| Underscore in slug | Use hyphens: event-loop.mdx not event_loop.mdx |

| Uppercase in slug | Use lowercase only: async-await.mdx not Async-Await.mdx |

| Slug too long | Shorten to primary keyword: closures.mdx not understanding-javascript-closures-and-scope.mdx |

---

`SEO Audit Report Template`

Use this template to document your findings.

`SEO Audit Report: [Concept Name]`

File: /docs/concepts/[slug].mdx

Date: YYYY-MM-DD

Auditor: [Name/Claude]

Overall Score: XX/30 (XX%)

Status: ✅ Excellent | ⚠️ Needs Work | ❌ Poor

---

`Score Summary`

| Category | Score | Status |

|----------|-------|--------|

| Title Tag | X/4 | ✅/⚠️/❌ |

| Meta Description | X/4 | ✅/⚠️/❌ |

| Keyword Placement | X/5 | ✅/⚠️/❌ |

| Content Structure | X/6 | ✅/⚠️/❌ |

| Featured Snippets | X/4 | ✅/⚠️/❌ |

| Internal Linking | X/4 | ✅/⚠️/❌ |

| Technical SEO | X/3 | ✅/⚠️/❌ |

| Total | X/30 | STATUS |

---

`Target Keywords`

Primary Keyword: [e.g., "JavaScript closures"]

Secondary Keywords:

•[keyword 1]

•[keyword 2]

•[keyword 3]

Search Intent: Informational / How-to / Comparison

---

`Title Tag Analysis`

Current Title: "[current title from frontmatter]"

Character Count: XX characters

Score: X/4

| Check | Status | Notes |

|-------|--------|-------|

| Length 50-60 chars | ✅/❌ | XX characters |

| Primary keyword in first half | ✅/❌ | [notes] |

| Ends with "in JavaScript" | ✅/❌ | [notes] |

| Contains compelling hook | ✅/❌ | [notes] |

Issues Found: [if any]

Recommended Title: "[suggested title]" (XX chars)

---

`Meta Description Analysis`

Current Description: "[current description from frontmatter]"

Character Count: XX characters

Score: X/4

| Check | Status | Notes |

|-------|--------|-------|

| Length 150-160 chars | ✅/❌ | XX characters |

| Starts with action word | ✅/❌ | Starts with "[word]" |

| Contains primary keyword | ✅/❌ | [notes] |

| Promises specific value | ✅/❌ | [notes] |

Issues Found: [if any]

Recommended Description: "[suggested description]" (XX chars)

---

`Keyword Placement Analysis`

Score: X/5

| Location | Present | Notes |

|----------|---------|-------|

| Title | ✅/❌ | [notes] |

| Meta description | ✅/❌ | [notes] |

| First 100 words | ✅/❌ | Found at word XX |

| H2 heading | ✅/❌ | Found in: "[H2 text]" |

| Natural reading | ✅/❌ | [no stuffing / stuffing detected] |

Missing Keyword Placements:

•[ ] [Location where keyword should be added]

---

`Content Structure Analysis`

Word Count: X,XXX words

Score: X/6

| Check | Status | Notes |

|-------|--------|-------|

| Question hook opening | ✅/❌ | [notes] |

| Code in first 200 words | ✅/❌ | Code appears at word XX |

| "What you'll learn" box | ✅/❌ | [present/missing] |

| Short paragraphs | ✅/❌ | [notes on paragraph length] |

| 1,500+ words | ✅/❌ | X,XXX words |

| Bolded key terms | ✅/❌ | [notes] |

Structure Issues:

•[ ] [Issue and recommendation]

---

`Featured Snippet Analysis`

Score: X/4

| Check | Status | Notes |

|-------|--------|-------|

| 40-60 word definition | ✅/❌ | Currently XX words |

| Question-format H2 | ✅/❌ | Found: "[H2]" / Not found |

| Numbered steps | ✅/❌ | [notes] |

| Comparison tables | ✅/❌/N/A | [notes] |

Snippet Opportunities:

1. "What is [concept]" snippet:

- Current definition: XX words

- Action: [Expand to/Trim to] 40-60 words

2. "How to [action]" snippet:

- Action: [Add Steps component / Already present]

---

`Internal Linking Analysis`

Score: X/4

| Check | Status | Notes |

|-------|--------|-------|

| 3-5 internal links in body | ✅/❌ | Found X links |

| Descriptive anchor text | ✅/❌ | [notes] |

| Prerequisites in Warning | ✅/❌ | [present/missing] |

| Related Concepts section | ✅/❌ | X cards present |

Current Internal Links:

1. [Anchor text] → /concepts/[slug]

2. [Anchor text] → /concepts/[slug]

Recommended Links to Add:

•Link to [concept] in [section/context]

Bad Anchor Text Found:

•Line XX: "click here" → change to "[descriptive text]"

---

`Technical SEO Analysis`

Score: X/3

| Check | Status | Notes |

|-------|--------|-------|

| Single H1 per page | ✅/❌ | [Found X H1 tags] |

| URL slug contains keyword | ✅/❌ | Current: /concepts/[slug] |

| Not an orphan page | ✅/❌ | Linked from X other pages |

H1 Tags Found:

•Line XX: # [H1 text] ← Should be the only one

•[List any additional H1s that need to be changed to H2]

Slug Analysis:

•Current slug: [slug].mdx

•Contains keyword: ✅/❌

•Format correct: ✅/❌ (lowercase, hyphens, no special chars)

Incoming Links Found:

1. /concepts/[other-concept] → Links to this page in [section]

2. /concepts/[other-concept] → Links in Related Concepts

If orphan page, add links from:

•[Suggested concept page] in [section]

•[Suggested concept page] in Related Concepts

---

`Priority Fixes`

`High Priority (Do First)`

1. [Issue]

- Current: [what it is now]

- Recommended: [what it should be]

- Impact: [why this matters]

2. [Issue]

- Current: [what it is now]

- Recommended: [what it should be]

- Impact: [why this matters]

`Medium Priority`

1. [Issue]

- Recommendation: [fix]

`Low Priority (Nice to Have)`

1. [Issue]

- Recommendation: [fix]

---

`Competitive Analysis (Optional)`

Top-Ranking Pages for "[primary keyword]":

1. [Competitor 1 - URL]

- What they do well: [observation]

- Word count: ~X,XXX

2. [Competitor 2 - URL]

- What they do well: [observation]

- Word count: ~X,XXX

Our Advantages:

•[What we do better]

Gaps to Fill:

•[What we're missing that competitors have]

---

`Implementation Checklist`

After making fixes, verify:

•[ ] Title is 50-60 characters with keyword and hook

•[ ] Description is 150-160 characters with action word and value

•[ ] Primary keyword in title, description, first 100 words, and H2

•[ ] Opens with question hook

•[ ] Code example in first 200 words

•[ ] "What you'll learn" Info box present

•[ ] Paragraphs are 2-4 sentences

•[ ] 1,500+ words total

•[ ] Key terms bolded on first mention

•[ ] 40-60 word definition for featured snippet

•[ ] At least one question-format H2

•[ ] 3-5 internal links with descriptive anchor text

•[ ] Prerequisites in Warning box (if applicable)

•[ ] Related Concepts section has 4 cards

•[ ] Single H1 per page (title only)

•[ ] URL slug contains primary keyword

•[ ] Page linked from at least one other concept page

•[ ] All fixes implemented and verified

---

`Final Recommendation`

Ready to Publish: ✅ Yes / ❌ No - [reason]

Next Review Date: [When to re-audit, e.g., "3 months" or "after major update"]

---

`Quick Reference`

`Character Counts`

| Element | Ideal Length |

|---------|--------------|

| Title | 50-60 characters |

| Meta Description | 150-160 characters |

| Definition paragraph | 40-60 words |

`Keyword Density`

•Don't exceed 3-4 mentions of exact phrase per 1,000 words

•Use variations naturally (e.g., "closures", "closure", "JavaScript closures")

`Content Length`

| Length | Assessment |

|--------|------------|

| <1,000 words | Too thin - add depth |

| 1,000-1,500 | Minimum viable |

| 1,500-2,500 | Good |

| 2,500-4,000 | Excellent |

| >4,000 | Consider splitting |

---

`Summary`

When auditing a concept page for SEO:

1. Identify target keywords using the keyword cluster for that concept

2. Check title tag — 50-60 chars, keyword first, hook, ends with "JavaScript"

3. Check meta description — 150-160 chars, action word, keyword, specific value

4. Verify keyword placement — Title, description, first 100 words, H2

5. Audit content structure — Question hook, early code, Info box, short paragraphs

6. Optimize for featured snippets — 40-60 word definitions, numbered steps, tables

7. Check internal linking — 3-5 links, good anchors, Related Concepts section

8. Generate report — Document score, issues, and prioritized fixes

Remember: SEO isn't about gaming search engines — it's about making content easy to find for developers who need it. Every optimization should also improve the reader experience.

seo-review

技能概览

SKILL.md

Skill: SEO Audit for Concept Pages

When to Use

Goal

SEO Audit Methodology

Step 1: Identify Target Keywords

Keyword Cluster Template

Step 2: On-Page SEO Audit

Step 3: Featured Snippet Optimization

Step 4: Internal Linking Audit

Step 5: Generate Report

Keyword Clusters by Concept

Audit Checklists

Title Tag Checklist (4 points)

Meta Description Checklist (4 points)

Keyword Placement Checklist (5 points)

Content Structure Checklist (6 points)

Featured Snippet Checklist (4 points)

What is a Closure in JavaScript?

Internal Linking Checklist (4 points)

Technical SEO Checklist (3 points)

Closures in JavaScript ← This is your H1 (only one!)

What is a Closure? ← H2 for sections

Lexical Scope ← H3 for subsections

How Closures Work ← Another H2

Scoring System

Total Points Available: 30

Score Interpretation

Common SEO Issues and Fixes

Title Tag Issues

Meta Description Issues

Content Structure Issues

Featured Snippet Issues

Internal Linking Issues

Technical SEO Issues

SEO Audit Report Template

SEO Audit Report: [Concept Name]

Score Summary

Target Keywords

Title Tag Analysis

Meta Description Analysis

Keyword Placement Analysis

Content Structure Analysis

Featured Snippet Analysis

Internal Linking Analysis

Technical SEO Analysis

Priority Fixes

High Priority (Do First)

Medium Priority

Low Priority (Nice to Have)

Competitive Analysis (Optional)

Implementation Checklist

Final Recommendation

Quick Reference

Character Counts

Keyword Density

Content Length

Summary

安装方式

资源下载

相关技能

`Meta Description Checklist (4 points)`

`Keyword Placement Checklist (5 points)`

`Content Structure Checklist (6 points)`

`Featured Snippet Checklist (4 points)`

`What is a Closure in JavaScript?`

`Internal Linking Checklist (4 points)`

`Technical SEO Checklist (3 points)`

`Closures in JavaScript ← This is your H1 (only one!)`

`What is a Closure? ← H2 for sections`

`Lexical Scope ← H3 for subsections`

`How Closures Work ← Another H2`

`Scoring System`

`Total Points Available: 30`

`Score Interpretation`

`Common SEO Issues and Fixes`

`Title Tag Issues`

`Meta Description Issues`

`Content Structure Issues`

`Featured Snippet Issues`

`Internal Linking Issues`

`Technical SEO Issues`

`SEO Audit Report Template`

`SEO Audit Report: [Concept Name]`

`Score Summary`

`Target Keywords`

`Title Tag Analysis`

`Meta Description Analysis`

`Keyword Placement Analysis`

`Content Structure Analysis`

`Featured Snippet Analysis`

`Internal Linking Analysis`

`Technical SEO Analysis`

`Priority Fixes`

`High Priority (Do First)`

`Medium Priority`

`Low Priority (Nice to Have)`

`Competitive Analysis (Optional)`

`Implementation Checklist`

`Final Recommendation`

`Quick Reference`

`Character Counts`

`Keyword Density`

`Content Length`

`Summary`