CLAUDE.md

Overview

International SEO audit tool for multi-language and multi-region website optimization. Validates hreflang tags (bidirectional, self-referencing, x-default), analyzes URL structure patterns (ccTLD vs subdomain vs subdirectory), audits content parity across language versions, checks language detection vs declared language, and analyzes international redirect logic. Supports Korean expansion patterns (ko→ja, ko→zh, ko→en).

Quick Start

pip install -r scripts/requirements.txt

# Hreflang validation
python scripts/hreflang_validator.py --url https://example.com --json

# Full international SEO audit
python scripts/international_auditor.py --url https://example.com --json

Scripts

Script	Purpose	Key Output
`hreflang_validator.py`	Validate hreflang tag implementation	Hreflang errors, missing bidirectional links, x-default issues
`international_auditor.py`	Full international SEO audit	URL structure, content parity, redirect logic, language detection
`base_client.py`	Shared utilities	RateLimiter, ConfigManager, BaseAsyncClient

Hreflang Validator

# Validate hreflang for homepage
python scripts/hreflang_validator.py --url https://example.com --json

# Validate with sitemap-based discovery
python scripts/hreflang_validator.py --url https://example.com --sitemap https://example.com/sitemap.xml --json

# Check specific pages
python scripts/hreflang_validator.py --urls-file pages.txt --json

Capabilities:

Hreflang tag extraction from HTML head, HTTP headers, and XML sitemap
Bidirectional validation (if page A→B, then B→A must exist)
Self-referencing check (each page should reference itself)
x-default tag verification
Language/region code validation (ISO 639-1 + ISO 3166-1)
Conflicting hreflang detection
Missing language version detection
Return tag validation (confirmation links from alternate pages)

International Auditor

# Full international audit
python scripts/international_auditor.py --url https://example.com --json

# URL structure analysis
python scripts/international_auditor.py --url https://example.com --scope structure --json

# Content parity check
python scripts/international_auditor.py --url https://example.com --scope parity --json

# Korean expansion focus
python scripts/international_auditor.py --url https://example.com --korean-expansion --json

Capabilities:

URL structure analysis (ccTLD vs subdomain vs subdirectory)
- Recommendation engine based on business context
Content parity audit across language versions
- Page count comparison per language
- Key page availability check (home, about, contact, products)
- Content freshness comparison across languages
Language/locale detection vs declared language
- HTML lang attribute check
- Content-Language header check
- Actual content language detection
International redirect logic audit
- IP-based redirect detection
- Accept-Language redirect behavior
- Geo-redirect best practices (suggest→don't force)
Korean expansion patterns (ko→ja, ko→zh, ko→en)
- Priority market recommendations for Korean businesses
- CJK-specific URL encoding issues
- Regional search engine considerations (Naver, Baidu, Yahoo Japan)

Data Sources

Source	Purpose
`our-seo-agent` CLI	Primary data source (future); use `--input` for pre-fetched JSON
WebSearch / WebFetch	Supplementary live data
Notion MCP	Save audit report to database

Output Format

{
  "url": "https://example.com",
  "url_structure": "subdirectory",
  "languages_detected": ["ko", "en", "ja"],
  "hreflang_validation": {
    "total_pages_checked": 50,
    "errors": [],
    "warnings": [],
    "missing_bidirectional": [],
    "missing_self_reference": [],
    "x_default_present": true
  },
  "content_parity": {
    "ko": {"pages": 150, "freshness_score": 90},
    "en": {"pages": 120, "freshness_score": 75},
    "ja": {"pages": 80, "freshness_score": 60}
  },
  "redirect_logic": {
    "ip_based_redirect": false,
    "language_based_redirect": true,
    "is_forced": false
  },
  "score": 68,
  "timestamp": "2025-01-01T00:00:00"
}

Notion Output (Required)

IMPORTANT: All audit reports MUST be saved to the OurDigital SEO Audit Log database.

Database Configuration

Field	Value
Database ID	`2c8581e5-8a1e-8035-880b-e38cefc2f3ef`
URL	https://www.notion.so/dintelligence/2c8581e58a1e8035880be38cefc2f3ef

Required Properties

Property	Type	Description
Issue	Title	Report title (Korean + date)
Site	URL	Audited website URL
Category	Select	International SEO
Priority	Select	Based on hreflang error count
Found Date	Date	Audit date (YYYY-MM-DD)
Audit ID	Rich Text	Format: INTL-YYYYMMDD-NNN

Language Guidelines

Report content in Korean (한국어)
Keep technical English terms as-is (e.g., hreflang, x-default, ccTLD)
URLs and code remain unchanged

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