seo-hreflang
SkillAI & modelsUse when auditing or generating hreflang tags for i18n/multilingual SEO.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the seo-hreflang skill
What this skill tells your AI
The instructions your AI receives, as published by fusengine/agents in plugins/seo/skills/seo-hreflang/SKILL.md and read by ahel’s review.
Hreflang / i18n SEO
Workflow
- Detect hreflang tags (HTML
<link>, HTTP header, or XML sitemap) - Run
scripts/parse-hreflang.ts→ validate - Check self-referencing, return tags, x-default
- Verify language/region codes (ISO 639-1 + ISO 3166-1)
Common Mistakes
- ❌ Missing self-reference (
<link rel="alternate" hreflang="fr" href="/fr/">from/fr/) - ❌ Missing return tags (A → B but not B → A)
- ❌ Invalid codes (
en-UKinstead ofen-GB) - ❌ HTTP/HTTPS mismatch between alternates
- ❌ Mixing trailing slashes
Implementation Options
- HTML head:
<link rel="alternate" hreflang="fr-FR" href="https://example.com/fr/"> - HTTP Header:
Link: <https://example.com/fr/>; rel="alternate"; hreflang="fr-FR" - XML Sitemap:
<xhtml:link rel="alternate" hreflang="fr-FR" href="https://example.com/fr/"/>
x-default
Required for international landing/locale selector pages:
<link rel="alternate" hreflang="x-default" href="https://example.com/">
Signals
- GitHub stars
- 25
- Forks
- 4
- Last commit
- Sep 2026
Advanced
- Catalog kind
- skill
- Gateway key
seo-hreflang-fusengine- Source
- github.com/fusengine/agents