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External Links Audit

Audits web pages for well-sourced outbound links and correct link attributes like noopener and nofollow.

Stars
74,632
Licence
MIT
Files
2 files

What it does

When installed, the agent checks a web page's outbound links: whether factual claims are backed by links to authoritative sources, whether external links carry the safety attribute rel="noopener noreferrer", and whether paid or affiliate links are marked sponsored or nofollow. It can also suggest where to add a source link, with an example rewrite. The guidance is based on SEO best practices written in the skill's text, not on live data.

Great for

  • Website owners or content writers who want to check that articles cite credible sources
  • Front-end developers reviewing HTML link attributes before release
  • SEO-minded marketers auditing blog or landing pages for paid or affiliate link markup

Skip it if

  • Projects that need verified SEO claims: the skill states that Google treats external links as a trust signal, which is a general claim and is not checked against current search documentation
  • Security-critical reviews of link safety beyond the noopener and noreferrer attributes, since the skill covers only that narrow check

Try asking

  • “Audit this blog post for external links and tell me which factual claims need a source.”
  • “Check that all external links in this HTML file have rel="noopener noreferrer".”
  • “Find affiliate links on this page that should be marked rel="sponsored".”
  • “Suggest authoritative sources to link for the statistics in this article.”
Step-by-step guide: how to use External Links AuditInstall, 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.

    external-links.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

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

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip external-links.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

  • Paste the page HTML or Markdown along with the request so the agent can count and inspect the actual links.
  • Ask the agent to list claims and sources separately so you can verify each suggested authority yourself before publishing.
  • Note that the agent cannot confirm that suggested URLs are live or current; check them manually.

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.