hreflang Multilingual SEO Checker
Audits and fixes hreflang tags so search engines show the right language version of a page
- 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”
Install in 3 steps
- 1
Download the skill
The ZIP contains the 2 original files, the MIT licence and an attribution note.
hreflang.zip - 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
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.