web-perf
Audit Web Performance with Chrome DevTools
Slow pages reduce engagement and hide complex loading bottlenecks. This skill records Chrome traces, evaluates Core Web Vitals, and prioritizes measurable fixes.
Install with my Agent
Copy this request to your Agent. It includes the canonical Skill page and manifest.
Review the Skillstore skill "web-perf" from https://skillstore.io/skills/cloudflare-web-perf.md and its manifest at https://skillstore.io/api/skills/cloudflare-web-perf/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.Your Agent should still show its plan and request any confirmation required by the security policy.
Agent-readable resources
Use these links when an AI agent, crawler, or script needs clean context instead of reading the full page.
Test it
Using "web-perf". Audit the home page and identify the largest loading delay.
Expected outcome:
LCP needs improvement. The hero image is discovered late through CSS, so preloading and direct markup are the highest-priority fixes.
Using "web-perf". Review scripts and styles for avoidable blocking work.
Expected outcome:
- High: Defer the noncritical analytics script that blocks first paint.
- Medium: Split the route bundle to reduce unused JavaScript on initial load.
- Low: Keep the stylesheet because its measured blocking impact is negligible.
Using "web-perf". Check performance and high-level accessibility issues.
Expected outcome:
Performance is strong, but two controls lack accessible names. Confirm keyboard focus behavior manually before release.
Security Audit
Medium RiskAll 59 static findings are false positives caused by Markdown formatting, documentation links, or Chrome DevTools MCP method names. One separate medium supply-chain risk remains because the setup executes an unpinned latest package.
Confirmed security concerns (1)
Risk Factors
⚙️ External commands (50)
🌐 Network access (5)
Share & cite this report
Share the versioned assessment report, neutral badge, embed card, and citations. Skillstore reports evidence without deciding whether this Skill is safe.
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https://skillstore.io/skills/cloudflare-web-perf/audits/1?utm_source=security_passport&utm_medium=share&utm_campaign=versioned_reportMarkdown badge
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<a href="https://skillstore.io/skills/cloudflare-web-perf?utm_source=security_passport_badge"><img src="https://skillstore.io/badges/skills/cloudflare-web-perf/security.svg" alt="Skillstore security assessment" loading="lazy"></a>Embed card
<iframe src="https://skillstore.io/embed/skills/cloudflare-web-perf.html" title="Skillstore Security Assessment" sandbox="allow-popups allow-popups-to-escape-sandbox" loading="lazy" referrerpolicy="no-referrer" width="420" height="180"></iframe>Academic citations (APA · BibTeX · CFF)
APA citation
cloudflare. (2026). web-perf security audit report (audit version 1) [Author version unspecified]. Skillstore. https://skillstore.io/skills/cloudflare-web-perf/audits/1BibTeX citation
@techreport{cloudflare-cloudflare-web-perf-2026,
author = {cloudflare},
title = {web-perf security audit report (audit version 1)},
institution = {Skillstore},
year = {2026},
number = {1},
url = {https://skillstore.io/skills/cloudflare-web-perf/audits/1},
note = {Author version unspecified}
}CITATION.cff
cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "web-perf security audit report (audit version 1)"
version: "unspecified"
type: report
authors:
- name: "cloudflare"
date-released: "2026-08-09"
url: "https://skillstore.io/skills/cloudflare-web-perf/audits/1"
identifiers:
- type: other
value: "skillstore:cloudflare-web-perf:audit:1"
description: "Skillstore immutable audit report identifier"
Skillstore Score
Why this score Evidence Confidence: MediumWhat You Can Build
Improve a Product Page
Trace a slow product page and prioritize loading fixes by estimated impact.
Validate a Performance Release
Compare captured metrics and network behavior after an optimization release.
Plan a Site Speed Sprint
Turn trace evidence into a focused backlog of measurable performance work.
Try These Prompts
Audit {URL} with a cold-load trace. Report key metrics, the top three issues, and specific fixes ranked by estimated impact.Analyze {URL} for render blocking, request chains, caching problems, and large payloads. Explain the evidence behind each priority.Audit {URL} for Core Web Vitals and accessibility gaps. Separate measured findings from observations that require manual verification.Trace {URL}, inspect the available codebase, and map major bottlenecks to framework or bundler changes with expected impact.Best Practices
- Run a cold-load trace before recommending changes.
- Verify every issue with trace, network, DOM, or code evidence.
- Prioritize fixes with measurable impact and state uncertainty clearly.
Avoid
- Do not recommend removing resources without confirming they are unused.
- Do not treat zero-impact trace observations as priority work.
- Do not present lab measurements as real-user field data.
Frequently Asked Questions
What tools does this skill require?
Which performance metrics can it assess?
Can it audit any website?
Does it replace Lighthouse?
Can it perform a complete accessibility audit?
How are recommendations prioritized?
Developer Details
Author
cloudflareLicense
MIT
Skillstore revision
r1
Version notice
The author did not declare a version.
Repository
https://github.com/cloudflare/skills/tree/f96bff754e428838818017f75817f0f9428acd48/skills/web-perfRef
47cf4adbf32018981daba69343434454119f2afa
Maintenance freshness
8/10/2026
Usage
0 downloads · 0 views
File structure
📄 SKILL.md