---
name: seo-international
description: |
  International SEO audit and hreflang validation for multi-language and multi-region websites.
  Triggers: hreflang, international SEO, multi-language, multi-region, content parity, x-default, ccTLD, 다국어 SEO.
---

# International SEO Audit

## Purpose

Audit international SEO implementation: hreflang tags, URL structure patterns, content parity across language versions, redirect logic, and Korean expansion strategies. Identify issues preventing proper multi-language indexing.

## Core Capabilities

1. **Hreflang Validation** - Bidirectional links, self-reference, x-default, language code validation
2. **URL Structure Analysis** - ccTLD vs subdomain vs subdirectory pattern detection
3. **Content Parity Audit** - Page count comparison, key page availability across languages
4. **Redirect Logic Audit** - IP-based, Accept-Language redirects, forced redirect detection
5. **Korean Expansion** - Priority markets (ja, zh, en), CJK URL issues, regional search engines

## MCP Tool Usage

### SEO Data
```
our-seo-agent CLI: Primary country metrics source (future); use --input for pre-fetched JSON
WebSearch / WebFetch: Supplementary international data
```

### Notion for Report Storage
```
mcp__notion__notion-create-pages: Save audit report to SEO Audit Log database
```

### WebSearch for Best Practices
```
WebSearch: Research hreflang implementation guides and regional search engine requirements
```

## Workflow

### 1. Hreflang Validation
1. Fetch target URL and extract hreflang tags (HTML head, HTTP headers)
2. If sitemap provided, also extract xhtml:link hreflang from XML sitemap
3. Validate language codes (ISO 639-1) and region codes (ISO 3166-1)
4. Check bidirectional links (if A references B, B must reference A)
5. Verify self-referencing tags on each page
6. Check x-default tag presence and validity
7. Detect conflicting hreflang for same language-region
8. Report all errors with severity levels

### 2. URL Structure Analysis
1. Crawl known language versions of the site
2. Classify pattern: ccTLD (example.kr), subdomain (ko.example.com), subdirectory (example.com/ko/)
3. Check consistency across all language versions
4. Provide recommendation based on business context

### 3. Content Parity Audit
1. Discover all language versions from hreflang tags
2. Count pages per language version
3. Check availability of key pages (home, about, contact, products/services)
4. Compare content freshness (last modified dates) across versions
5. Flag significant gaps in content availability

### 4. Redirect Logic Audit
1. Test URL with different Accept-Language headers (ko, en, ja, zh)
2. Check if redirects are forced (no way to override) vs suggested (banner/popup)
3. Flag forced geo/language redirects as anti-pattern
4. Recommend proper implementation (suggest, do not force)

### 5. Korean Expansion Analysis (Optional)
1. Analyze current traffic by country via our-seo-agent CLI or pre-fetched data
2. Recommend priority target markets for Korean businesses
3. Check CJK-specific URL encoding issues
4. Advise on regional search engines (Naver, Baidu, Yahoo Japan)

## Output Format

```markdown
## 다국어 SEO 감사: [domain]

### Hreflang 검증
- 검사 페이지 수: [count]
- 오류: [count] (심각 [count], 경고 [count])
- 양방향 링크 누락: [list]
- 자기참조 누락: [list]
- x-default: [있음/없음]

### URL 구조
- 패턴: [ccTLD/subdomain/subdirectory]
- 일관성: [양호/비일관]
- 권장사항: [recommendation]

### 콘텐츠 동등성
| 언어 | 페이지 수 | 핵심 페이지 | 최신성 점수 |
|------|----------|------------|-----------|
| ko   | 150      | 5/5        | 90        |
| en   | 120      | 4/5        | 75        |

### 리다이렉트 로직
- IP 기반 리다이렉트: [있음/없음]
- 언어 기반 리다이렉트: [있음/없음]
- 강제 리다이렉트: [있음/없음] (없어야 정상)

### 종합 점수: [score]/100

### 권장 조치사항
1. [Priority fixes in Korean]
```

## Notion Output (Required)

All audit reports MUST be saved to OurDigital SEO Audit Log:
- **Database ID**: `2c8581e5-8a1e-8035-880b-e38cefc2f3ef`
- **Properties**: Issue (title), Site (url), Category (International SEO), Priority, Found Date, Audit ID
- **Language**: Korean with English technical terms
- **Audit ID Format**: INTL-YYYYMMDD-NNN

## Limitations

- Cannot detect server-side IP-based redirects without proxy testing
- Content language detection requires sufficient text content
- Large sites (10,000+ pages) require sampling approach
- Sitemap-based hreflang requires XML sitemap access