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CDN Performance Auditor

Audits whether static assets are served from a CDN and flags slow-load causes

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 check whether a website's static files (images, scripts, styles) are delivered through a content delivery network, which stores copies on servers close to visitors so pages load faster. When you ask about slow pages or heavy assets, the agent is guided to verify the real bottleneck with DevTools, Lighthouse or field data before recommending a CDN setup with proper caching headers.

Great for

  • Web developers investigating slow page loads for users far from their servers
  • Teams preparing a performance review before launch
  • Anyone who wants a checklist-style CDN review of a site

Skip it if

  • Sites with no static assets or no global audience, where a CDN gains little (the skill's own claim of 50-70% latency reduction is generic and not verified for your site)
  • Projects needing guaranteed security outcomes: DDoS protection is mentioned only in passing, so do not rely on this skill for security decisions

Try asking

  • “Audit whether my site's images and JS are served from a CDN and check the caching headers”
  • “Our Lighthouse report flags slow asset loading for European visitors, what should we change?”
  • “Review my deployment config and tell me which static assets should move to a CDN”
Step-by-step guide: how to use CDN Performance AuditorInstall, 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.

    cdn.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

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

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip cdn.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 your Lighthouse report or DevTools network timings so it can confirm the bottleneck before suggesting changes.
  • Name your hosting provider (for example Cloudflare, Vercel or CloudFront) so the advice matches your setup.
  • Ask for specific file and header changes rather than general advice, since the skill's main text is brief and points to references/rule.md for details.

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.