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Blocked Tracking Links Checker

Reviews HTML and JavaScript for links and scripts that adblockers are likely to block.

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

What it does

This skill teaches an AI agent to review a site's HTML and JavaScript for external links, scripts, images, iframes and API calls that point to domains commonly listed in adblocker filter lists, such as analytics and tag-manager hosts. Once installed, the agent can flag these resources, explain why they may silently fail for visitors using blockers, and suggest fixes like self-hosting scripts, proxying requests through your own domain, or using direct destination URLs with UTM parameters instead of tracking redirects.

Great for

  • Front-end developers auditing a site's analytics and third-party script setup
  • Marketers wondering why their analytics numbers look lower than expected
  • Teams reviewing navigation links that break for users with ad blockers

Skip it if

  • Bypassing privacy protections or ad blockers for users: the skill is aimed at making a site's own resources load, and self-hosting trackers may raise privacy and consent questions that need legal review
  • Sites with no third-party resources, where the checks have nothing to find

Try asking

  • “Review this HTML file for links or scripts that adblockers might block”
  • “Check my page's analytics and tag manager setup for adblocker problems”
  • “Suggest how to self-host Google Tag Manager or proxy my analytics requests”
  • “Explain why my navigation link does nothing when uBlock Origin is on”
Step-by-step guide: how to use Blocked Tracking Links 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.

    blocked-links.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

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

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip blocked-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

  • Give the agent the actual HTML or JavaScript source so it can locate specific URLs rather than guessing.
  • Test suggested fixes with uBlock Origin enabled, since the skill recommends this check but the agent cannot run a browser on its own from this skill alone.
  • Treat the '20-40% of desktop users' statistic as a rough claim from the source and verify it for your audience before relying on it.

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.