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hreflang Multilingual SEO Checker

Audits and fixes hreflang tags so search engines show the right language version of a page

Source Download skill
Repository
thedaviddias/Front-End-Checklist
Stars
74,632
Licence
MIT
Files
2 files

What it does

This skill gives an AI agent a checklist for hreflang, the HTML or HTTP markup that tells search engines which language and regional version of a page to show each user. When you ask the agent to check or fix a multilingual site, it looks at the rendered HTML and HTTP response (not just source files), checks that tags are reciprocal, that x-default is set for fallback pages, and that ISO language and region codes are used, then explains or corrects problems it finds.

Great for

  • Web developers maintaining a website in several languages or regions
  • SEO or marketing staff reviewing whether the right language pages appear in search results
  • Teams preparing a multilingual site launch or auditing an existing one

Skip it if

  • Single-language sites, where hreflang adds nothing (no reason stated in the files, but the rule only applies to language variants)
  • Anyone expecting a guaranteed search ranking change: the skill gives guidance only and does not measure results or contact search engines

Try asking

  • “Check whether the hreflang tags on our product pages are reciprocal across English, French and German”
  • “Add hreflang and x-default tags to this multilingual page”
  • “Review our templates and tell me which routes violate the hreflang rule”
  • “Explain to my content team why French users might see the English page in search”
Step-by-step guide: how to use hreflang Multilingual SEO CheckerInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 2 original files, the MIT licence and an attribution note.

    hreflang.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip hreflang.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip hreflang.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Give the agent access to rendered HTML or live URLs, since the skill asks it to verify the final output rather than source files alone
  • Ask for a list of exact routes or templates that need changes so fixes can be applied quickly
  • Check the referenced rule page for framework-specific code examples, which the agent may need to read

What's inside

  • references/rule.md
  • SKILL.md

Redistributed unmodified from thedaviddias/Front-End-Checklist under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.