ARG Web Audit

A method for auditing any website for security, performance, accessibility and AI readiness. It produces a scored report that names every problem, shows the evidence and gives the fix.

Installation

npx skills add ARG-Software/arg-agent-skills --skill arg-web-audit

What it does

• The audit covers security headers (CSP, HSTS, cookies, CORS), Core Web Vitals (LCP, CLS, TBT), page weight, caching, compression, third-party dependencies, accessibility basics and AI readiness (robots.txt, sitemap, llms.txt, structured data).
• Only evidence a browser can observe is used. When something cannot be observed, the check is marked unknown instead of failed, and scores reflect how much was actually measured.
• Numeric checks earn graded credit instead of a pass or fail cliff, so a page just past a threshold is not scored the same as a page far beyond it.
• Every problem names the offending files, headers or elements and comes with a concrete recommendation that can be handed straight to a developer.

Used when

The skill applies when auditing, scoring or benchmarking a site or page, checking security headers or Core Web Vitals, reviewing caching, images and fonts, checking robots.txt, llms.txt or structured data, comparing two audits, or writing an audit report with fixes.

This is the audit method behind ARG Architect, our browser extension that scores any website in one click. It is safe to run on any public site: it only observes what a normal visit shows, and it never sends attack payloads or probes for server-side vulnerabilities. Use it on your own app before a release, or on a competitor's site for a benchmark.