SkillsAdd

thedaviddias/front-end-checklist

image-cdn

Use when reviewing image assets, markup, and CDN or build transforms related to Serve images from a CDN. Check encoded size, rendered size, loading strategy, and above-the-fold impact together.

First seen Aug 11, 2026

Installation

$ npx skills add thedaviddias/front-end-checklist --skill image-cdn
View on skills.sh ↗ GitHub repository ↗

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Also in this package

Other skills from thedaviddias/front-end-checklist · top by installs.

npx skills add thedaviddias/front-end-checklist
frontend-checklist-global 96 color-contrast 22 animation-performance 22 https 19 pdf-size 18 word-count 18 image-optimization 18 cumulative-layout-shift 18 mobile-testing 18 quality 17

Browse all from thedaviddias/front-end-checklist

More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

Claude Code Not declared
Cursor Not declared
Codex Not declared
GitHub Copilot Not declared
Windsurf Not declared
Gemini CLI Not declared
Cline Not declared
OpenCode Not declared

Repository health

Stars 74.1K
License MIT
Default branch main
Open issues 5
Status Active

Skill metadata

Parsed from SKILL.md frontmatter.

More metadata
category
images
priority
high
difficulty
intermediate
estimatedTime
30
source
frontendchecklist.io
url
https://frontendchecklist.io/en/rules/images/image-cdn

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 1,585 B
  • docs SUMMARY.md 210 B

History

  1. First seen on skills.sh
  2. First recorded snapshot · 5 installs

SKILL.md

Serve images from a CDN

Image CDNs automatically optimize, resize, and convert images on-the-fly—delivering the smallest file in the best format without manual processing.

Quick Reference

  • Use image CDN for automatic format conversion (WebP, AVIF)
  • Generate responsive sizes on-the-fly via URL parameters
  • CDN edge caching delivers images from nearest location
  • Popular options: Cloudinary, Imgix, Cloudflare Images, Vercel

Check

Verify if images are served from a CDN or image optimization service.

Fix

Configure an image CDN like Cloudinary, Imgix, or Cloudflare Images for automatic optimization.

Explain

Explain how image CDNs provide on-the-fly optimization, resizing, and format conversion.

Code Review

Review image assets, markup, and delivery configuration related to Serve images from a CDN. Flag exact files or components where format choice, sizing, or loading behavior violates the rule, and describe how to confirm the fix in DevTools.

For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/en/rules/images/image-cdn