International SEO QA

HTML Lang Attribute Checker

Paste a localized page head or full HTML document to check whether html lang, Open Graph locale, and hreflang alternates agree before launch.

No HTML59/100

HTML lang-

og:locale-

Hreflang links0

Issues3

Paste HTML language signals

Paste a full HTML document or the head section. The checker reads html lang, Open Graph locale, and alternate hreflang links.

Issue groups

HTML language1

Open Graph locale1

Hreflang alternates1

Language signals

HTML lang-

og:locale-

OG alternates-

Language signal issues

Critical · HTML language

The html element is missing a lang attribute.

lang

Warning · Open Graph locale

og:locale is missing, so social crawlers may infer the wrong locale.

og:locale

Warning · Hreflang alternates

No hreflang alternate links were found for this localized page.

hreflang

Hreflang inventory

No hreflang links found yet.

Report preview

# HTML Lang Attribute Audit

- Score: 59/100
- Classification: empty
- HTML lang: missing
- og:locale: missing
- Hreflang links: 0

## Issues
- [critical] HTML language: The html element is missing a lang attribute. (lang)
- [warning] Open Graph locale: og:locale is missing, so social crawlers may infer the wrong locale. (og:locale)
- [warning] Hreflang alternates: No hreflang alternate links were found for this localized page. (hreflang)