--- title: "Cloudflare Web Performance Audit: review, setup & limitations · Undominated.ai" canonical: https://undominated.ai/skills/cloudflare-web-perf/ description: "Builds a performance review from browser traces, request details and relevant source instead of generic optimization advice." --- # Cloudflare Web Performance Audit: review, setup & limitations · Undominated.ai > Builds a performance review from browser traces, request details and relevant source instead of generic optimization advice. [← Explore all skills](/skills/) WEB PERFORMANCE / Cloudflare # Cloudflare Web Performance Audit Builds a performance review from browser traces, request details and relevant source instead of generic optimization advice. See setup guidance ↓Original source ↗ SOURCE REVIEW Reviewed 2026-09-21 Evidence 5 linked sources Publisher Cloudflare Licence Apache-2.0 ↗ Revision b052c32bab7d Read what was—and wasn’t—checked ↓ “Audit, diagnose, or optimize website loading and interaction performance, Core Web Vitals, and Lighthouse performance scores.” Cloudflare · upstream description ↗ Our analysis follows below. 01 / THE REASONING ## Why this made the selection. - Starts by discovering available measurement tools and records measurements it could not collect. - Connects individual requests and trace insights to concrete changes, while skipping recommendations with no observed impact. ### A good fit for - Investigating why a page loads or responds slowly - Checking a proposed optimization against browser evidence ### Weigh up before choosing - A lab trace does not establish real-user Core Web Vitals or prove a resource is unused in every interaction. - An accessibility-tree snapshot alone cannot verify contrast, keyboard behavior or complete accessibility conformance. - The source contains fixed thresholds and version-dependent tool names; its own retrieval instructions should be followed. 02 / THE REVIEW RECORD ## What we actually inspected. Source review has boundaries. A clear record is more useful than a “safe” badge. ### Material inspected - skills/web-perf/SKILL.md - LICENSE ### Our findings - The workflow covers trace, network and optional codebase inspection and omits codebase claims for third-party sites. - It asks for verification before recommending resource removal, though a single captured route has limited coverage. - MCP setup changes are explicitly conditional on the user’s authorized scope. ### Not established by this review - Source inspection only; no skill installation or workflow execution was performed. The review applies to the material and revision named here. A newer upstream release can change its behavior. 03 / PUT IT TO WORK ## Add a skill to your workflow. Upstream setup instructions ↗ DOCUMENTED COMMAND npx skills add https://github.com/cloudflare/skills/tree/b052c32bab7dd493513260228a36c88294f343f1/skills/web-perf Copy command ↗ Copying does not execute this command. It may retrieve a newer version than the reviewed source. - Install the complete skill directory with its references and helpers; a copied SKILL.md alone may be incomplete. - Choose the intended agent and project scope in the installer, then review its permissions before using the skill. ### Before you start - Node.js/npm for this installer - An agent that supports the Agent Skills format - A reachable target page - Browser tracing capability for measured metrics ### Compatibility Chrome DevTools MCP or equivalent available browser tools · Websites accessible to the browser ### Navigate pages and inspect requests, DOM and traces - Navigate pages and inspect requests, DOM and traces - Optionally read source or change application files - Authenticated browsing can expose session-specific content to the agent ### Cost model The Apache-licensed guide uses the selected agent and browser tooling; no separate measurement service is bundled. 04 / FOLLOW THE EVIDENCE ## The source trail. Our notes are separate from the original resource. Check upstream before adopting a new version. - Skill definition at reviewed revision ↗ Checked 2026-09-21 https://github.com/cloudflare/skills/blob/b052c32bab7dd493513260228a36c88294f343f1/skills/web-perf/SKILL.md Supports: summary, upstreamDescription, whySelected, bestFor, limitations, review, compatibility, access - Upstream license or licensing declaration ↗ Checked 2026-09-21 https://github.com/cloudflare/skills/blob/b052c32bab7dd493513260228a36c88294f343f1/LICENSE Supports: license - Publisher installation and project documentation ↗ Checked 2026-09-21 https://github.com/cloudflare/skills/blob/b052c32bab7dd493513260228a36c88294f343f1/README.md Supports: install, compatibility, access - Skills installer source formats and selective installation ↗ Checked 2026-09-21 https://github.com/vercel-labs/skills/blob/7407f3893ad4dceab546ac002c3ef806e4000c73/README.md Supports: install - Installer implementation: full commit SHA fallback ↗ Checked 2026-09-21 https://github.com/vercel-labs/skills/blob/7407f3893ad4dceab546ac002c3ef806e4000c73/src/git.ts Supports: install [AI Tools ↗](/tools/)[Skills ↗](/skills/)[Agents ↗](/agents/)[MCP Servers ↗](/mcp-servers/)