International SEO QA

HTML Lang Attribute Checker

ローカライズページの head または HTML 全体を貼り付け、公開前に言語シグナルの整合性を確認します。

No HTML59/100

HTML lang-

og:locale-

Hreflang links0

Issues3

HTML language signals

HTML 全体または head 部分を貼り付けます。html lang、Open Graph locale、alternate hreflang を読み取ります。

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)