Website SEO — On-Page Optimization System

Complete on-page SEO system for any website — page optimization, schema markup, technical SEO checklist, internal linking strategy, Core Web Vitals guidance,...

Security Scan

This is an instruction-only on-page SEO guidance skill that is internally consistent with its stated purpose and does not request credentials, install software, or perform unexpected actions.

Purpose & Capability

The name/description (on-page SEO, schema, technical checklist) matches the SKILL.md content: checklists, prompts, and templates for title tags, meta descriptions, headings, content, Core Web Vitals, and schema. The skill is advisory only and does not request unrelated capabilities (no cloud credentials, no binaries).

Instruction Scope

The instructions are guidance and prompt templates that ask the user to paste page content, business details, and site information for audits and schema generation. It references testing tools (PageSpeed Insights) but does not include automated calls or require credentials. This is expected for a manual advisory skill, but users should be aware they will be asked to supply page contents and potentially business contact details when requesting generated schema or audits.

Install Mechanism

No install spec or code files are present. Being instruction-only means nothing is written to disk and there are no downloaded artifacts to review.

Credentials

The skill declares no environment variables, no credentials, and no config paths. That aligns with its described advisory/manual role—no disproportionate access is requested.

Persistence & Privilege

The skill is not set to always:true and does not request persistent system presence or modify other skills. It can be invoked by the agent as normal; there are no additional privilege escalations requested.

Assessment

This skill is advisory and coherent with its SEO purpose, but be cautious about the content you paste: do not paste secrets, API keys, or other sensitive credentials into prompts. If you later ask the skill to perform automated checks (e.g., submit sitemaps, query Search Console, or run PageSpeed APIs), those actions would require additional integrations/credentials — only provide such tokens if you trust the integration and can limit permissions (read-only where possible). For schema generation and business info, prefer public or non-sensitive fields (address, phone, hours) and double-check the generated markup before publishing. If you want automated site scanning or CMS-level changes, ask for a version that explicitly documents required integrations and their security model before granting access.

Website SEO — Universal On-Page Optimization System

What This Skill Does

Guides you through a complete website SEO audit and optimization process. Covers on-page elements, technical fundamentals, schema markup, and an ongoing optimization strategy that compounds over time.

How to Use This Skill

Input format:

WEBSITE URL: [Your website]
CMS: [WordPress / Webflow / Squarespace / Shopify / Custom]
NICHE: [Your industry]
TARGET LOCATION: [Local / National / Global]
PRIORITY PAGES: [Homepage / Service pages / Blog / Product pages]
CURRENT ISSUES: [Known issues or "unknown — need full audit"]
GOAL: [Rank for specific keywords / Improve existing rankings / Fix technical issues]

---

Phase 1: Page-Level Optimization

Title Tag Optimization

Formula: Primary Keyword — Secondary Keyword | Brand Name

Rules:
- 50-60 characters maximum
- Primary keyword as close to the beginning as possible
- Each page must have a UNIQUE title
- Make it compelling for humans, not just crawlers

Bad: "Home | Company Name"
Good: "Personal Training Rotterdam — 1-on-1 Coaching | Brand Name"

Meta Description Optimization

Formula: [Benefit] + [Primary keyword] + [CTA]

Rules:
- 150-160 characters
- Include primary keyword naturally
- Include a call-to-action
- Each page must have a UNIQUE meta description
- Think of it as a micro-ad for your page in search results

Prompt to generate:
"Write a meta description for a [PAGE TYPE] page about [TOPIC] for [BRAND NAME].
Primary keyword: [KEYWORD]. Audience: [AUDIENCE].
Max 155 characters. Include a benefit + soft CTA."

Header Structure (H1-H6)

Rules:
- ONE H1 per page — contains primary keyword
- H2s: section headers — contain secondary/LSI keywords
- H3s: subsections
- Never skip levels (don't go H1 → H3)
- Headers should describe the content below them accurately

Audit prompt:
"Review the heading structure of this page: [paste page content]
Identify: missing H1, keyword opportunities in headers, hierarchy issues."

Content Optimization

On-Page Content Checklist:
- [ ] Primary keyword in first 100 words
- [ ] Primary keyword appears naturally throughout (1-2% density)
- [ ] LSI keywords (related terms) used throughout
- [ ] Minimum 300 words for service pages, 800+ for blog posts
- [ ] Content answers the search intent (informational/commercial/navigational)
- [ ] Internal links to 2-3 relevant pages on your site
- [ ] External link to 1 authoritative source
- [ ] All images have descriptive alt text

Content optimization prompt:
"Optimize this content for the keyword [KEYWORD]:
[Paste your existing content]
Suggest: where to add the keyword naturally, missing LSI terms,
structural improvements, and any thin content sections to expand."

---

Phase 2: Technical SEO Essentials

Core Technical Checklist

INDEXABILITY:
- [ ] robots.txt exists and doesn't block important pages
- [ ] XML sitemap submitted to Google Search Console
- [ ] No important pages with noindex tag
- [ ] Canonical tags set correctly

PERFORMANCE:
- [ ] Page loads under 3 seconds (test: PageSpeed Insights)
- [ ] Images compressed and in WebP format where possible
- [ ] Minified CSS and JavaScript
- [ ] Browser caching enabled

MOBILE:
- [ ] Mobile-responsive design
- [ ] No intrusive interstitials on mobile
- [ ] Tap targets large enough (48×48px minimum)
- [ ] Text readable without zooming

CRAWLABILITY:
- [ ] Clean URL structure (yoursite.com/service-name not yoursite.com/p=123)
- [ ] No broken internal links
- [ ] No redirect chains (A→B→C, should be A→C directly)
- [ ] HTTPS enabled on all pages

CORE WEB VITALS:
- [ ] LCP (Largest Contentful Paint) < 2.5 seconds
- [ ] CLS (Cumulative Layout Shift) < 0.1
- [ ] FID/INP (Interaction to Next Paint) < 200ms

URL Structure Best Practices

Good URL structure:
yoursite.com/service/keyword-based-page-name
yoursite.com/blog/topic-keyword-post-title

Bad URL structure:
yoursite.com/page?id=123
yoursite.com/2024/01/01/blog/post
yoursite.com/my-awesome-service-page-click-here

Rules:
- Use hyphens (-) not underscores (_)
- Lowercase only
- Include primary keyword
- Remove stop words (the, a, and, or) where possible
- Keep it short — under 60 characters ideal

---

Phase 3: Schema Markup

Schema markup tells search engines exactly what your content means, enabling rich snippets.

Most Valuable Schema Types

Local Business (for location-based businesses):

{
  "@context": "https://schema.org",
  "@type": "LocalBusiness",
  "name": "[Business Name]",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "[Street]",
    "addressLocality": "[City]",
    "postalCode": "[Code]",
    "addressCountry": "[Country Code]"
  },
  "telephone": "[Phone]",
  "url": "[Website URL]",
  "openingHours": ["Mo-Fr 09:00-17:00"],
  "priceRange": "$$"
}

Article/Blog Post:

{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "[Post Title]",
  "author": {"@type": "Person", "name": "[Author Name]"},
  "datePublished": "[ISO Date]",
  "description": "[Meta Description]"
}

FAQ (for Q&A sections):

{
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "mainEntity": [{
    "@type": "Question",
    "name": "[Question text]",
    "acceptedAnswer": {
      "@type": "Answer",
      "text": "[Answer text]"
    }
  }]
}

Schema generation prompt:

Generate [SCHEMA TYPE] schema markup for [BUSINESS NAME].
Details: [provide business details, page content, or FAQ content]
Output: valid JSON-LD format ready to add to the page <head>

---

Phase 4: Internal Linking Strategy

Internal links distribute page authority and help users navigate your site.

Hub and Spoke Model:

PILLAR PAGE (broad topic) → linked to by all related pages
CLUSTER PAGES (specific subtopics) → each links back to pillar page

Example:
Pillar: "Ultimate Guide to [Your Service]"
Clusters:
- "[Specific aspect 1] Explained"
- "How to [specific task] — Step by Step"
- "[Topic] for Beginners"
- "[Advanced topic] Guide"

Internal linking rules:

• Link from high-traffic pages to pages you want to rank
• Use descriptive anchor text (not "click here" or "read more")
• Add 2-3 internal links per new page or post
• Audit broken internal links quarterly

---

Phase 5: Ongoing SEO Monitoring

Monthly SEO Audit Checklist

RANKING:
- [ ] Check Google Search Console for position changes
- [ ] Identify keywords dropped — investigate why
- [ ] Find new keyword opportunities from "Queries" report

TECHNICAL:
- [ ] Check for new crawl errors in GSC
- [ ] Review Core Web Vitals report
- [ ] Check any new 404 errors

CONTENT:
- [ ] Update any outdated statistics or information
- [ ] Add internal links from new content to older pages
- [ ] Identify thin pages (under 300 words) for expansion

SEO Audit Prompt

I'm auditing [WEBSITE URL] for [NICHE] targeting [KEYWORDS].
Based on SEO best practices, identify the top 10 issues to fix.
Priority order: technical issues → on-page → content gaps → link opportunities.
Format: Issue | Impact (High/Medium/Low) | Recommended fix

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Use with ContentAI Suite

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