seo-hreflang

Validate hreflang implementations and generate ISO-compliant language tags for multilingual sites.

Updated May 5, 2026

Search Tags:#localization #canonical #multilingual #seo-audit #hreflang #international-seo #language-codes

Ready to run

npx skills add https://github.com/rothwellmawela-cyber/CoexSEO --skill seo-hreflang-rothwellmawela-cyber

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: seo-hreflang
Source: https://github.com/rothwellmawela-cyber/CoexSEO/tree/main/skills/seo-hreflang
Command: npx skills add https://github.com/rothwellmawela-cyber/CoexSEO --skill seo-hreflang-rothwellmawela-cyber

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Validates hreflang implementations and generates correct language/region tags for multilingual sites, improving crawl efficiency and user experience.

Core Features & Use Cases

Validates ISO language and region codes (ISO 639-1 and ISO 3166-1)
Generates bidirectional hreflang relationships and a default x-default
Checks canonical URL alignment, protocol consistency, and cross-domain support
Use cases include international ecommerce, multi-country blogs, and global content hubs

Quick Start

Run a hreflang audit on your multi-language site to generate correct tags.

Frequently Asked Questions about seo-hreflang

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I generate hreflang tags for a multilingual site with multiple regional variants?▼

To generate hreflang tags for a multilingual site, input your regional variant URLs to output deployment-ready tag sets that enforce ISO 639-1 and ISO 3166-1 codes, bidirectional relationships, and a default x-default.

When do I need to use hreflang tags and an x-default attribute for international SEO?▼

You need hreflang tags and an x-default attribute for international SEO when your site serves multiple languages or regional variants, ensuring correct language targeting and providing a fallback URL for unmatched regional visitors.

How do I validate hreflang implementation in a sitemap or HTML tags?▼

Validate hreflang implementation in sitemaps or HTML tags by checking canonical URL alignment, protocol consistency, and bidirectional relationships to ensure cross-domain setups return correct language and region codes.

Does hreflang validation work with cross-domain setups and different deployment methods?▼

Hreflang validation works with cross-domain setups, supporting both sitemap-based and HTML tag methods to enforce protocol consistency and canonical alignment across multiple domains for international sites.

Why is my hreflang implementation returning incorrect language or region codes?▼

Your hreflang implementation returns incorrect language or region codes when it violates ISO 639-1 and ISO 3166-1 standards, lacks bidirectional relationships, or has misaligned canonical URLs across your multilingual site variants.

What is the best way to audit international hreflang tags for global ecommerce sites?▼

The best way to audit international hreflang tags for global ecommerce sites is to validate ISO language codes, check canonical alignment, and generate bidirectional relationships to produce deployment-ready tag sets.