seo-hreflang

Validate and generate hreflang tags for HTML, HTTP headers, and XML sitemaps.

Updated Jun 5, 2026
One-click install
npx skills add https://github.com/0xRayAI/xray --skill seo-hreflang-0xrayai
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: seo-hreflang
Source: https://github.com/0xRayAI/xray/tree/main/integrations/claude-seo/seo-hreflang
Command: npx skills add https://github.com/0xRayAI/xray --skill seo-hreflang-0xrayai

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill resolves complex international SEO challenges by identifying and fixing broken hreflang implementations that cause search engines to ignore multi-language or multi-region site content.

Core Features & Use Cases

  • Validation Engine: Automatically detects missing self-referencing tags, broken return-tag relationships, and invalid ISO language/region codes.
  • Implementation Support: Generates correct hreflang configurations for HTML, HTTP headers, and XML sitemaps.
  • Use Case: Use this skill when auditing a global e-commerce site to ensure that users in different countries are correctly directed to their localized versions, preventing duplicate content penalties and improving search visibility.

Quick Start

Use the seo-hreflang skill to audit the current website for hreflang errors and generate a report of missing return tags.

Frequently Asked Questions about seo-hreflang

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

FAQPage Schema
How do I audit hreflang tags for international SEO errors?

To audit hreflang tags for international SEO, this skill validates HTML link tags, HTTP headers, and XML sitemaps against ISO 639-1 and ISO 3166-1 standards. It detects missing self-referencing tags, broken return-tag relationships, and invalid codes to ensure correct language and region targeting.

What is hreflang bidirectional return-tag consistency and why does it matter?

Hreflang bidirectional return-tag consistency requires each alternate URL to link back to the referencing URL. This skill validates these return-tag relationships and canonical URL alignment to optimize search engine indexing and prevent search engines from ignoring multi-language site content.

How do I generate hreflang tags for an XML sitemap?

To generate hreflang tags for an XML sitemap, this skill outputs correct international SEO configurations based on ISO language and region standards. It supports implementation across HTML, HTTP headers, and XML sitemaps to direct users to localized website versions.

Can I use this skill to fix duplicate content penalties on a global e-commerce site?

Yes, you can use this skill to fix duplicate content penalties on a global e-commerce site. It generates correct hreflang configurations that ensure users in different countries are directed to their localized versions, preventing duplicate content issues and improving search visibility.

Why does Google ignore my hreflang tags on a multi-region website?

Google ignores hreflang tags on a multi-region website when there are missing self-referencing tags, broken return-tag relationships, or invalid ISO 639-1 and ISO 3166-1 codes. This skill identifies and fixes these broken hreflang implementations to restore correct indexing.

Does this skill validate hreflang tags implemented via HTTP headers?

Yes, this skill validates hreflang tags implemented via HTTP headers. It audits HTML link tags, HTTP headers, and XML sitemaps against ISO standards to ensure correct language and region targeting for multi-locale websites.