International SEO
Multi-Language
Validates hreflang tags, multi-language configuration, regional targeting, and internationalisation best practices.
Key Checks
Hreflang tag validation
HTML lang attribute
Content-Language meta
URL structure for i18n
Translated content checks
Regional targeting meta
Audit Checks
| Check | Status | Rule |
|---|---|---|
| No hreflang tags on multi-language site | FAIL | Add hreflang tags for language variants |
| Self-referencing hreflang missing | FAIL | Page must include itself in hreflang |
| x-default fallback missing | WARN | Add hreflang x-default for fallback |
| Missing <html lang> | FAIL | Required for accessibility and SEO |
| URL parameter for language | WARN | Not recommended — use subdirectories |
Industry Thresholds
Language codes
ISO 639-1 (e.g. en, fr, de)
Region codes
ISO 3166-1 alpha-2 (e.g. en-US, fr-CA)
URL pattern
Subdirectory (/en/) recommended
Related Skills
Edge Cases
- Monolingual sites — skip all checks, report 'Not applicable'
- Right-to-left languages — check for dir='rtl'
- Hreflang on some pages but not others — flag inconsistency
Try These Prompts
Copy any prompt below and paste it into your AI coding agent to run International SEO checks:
“Does this page have hreflang tags? Is the self-referencing hreflang present?”
“Is there an x-default fallback in my hreflang setup?”
“Check if the html lang attribute matches the hreflang self-reference”
“What URL structure am I using for i18n — subdirectories, subdomains, or parameters?”
“Are my title and meta description translated for each language variant?”