1-Click CMS & Builder detector, DOM bloat scanner, Core Web Vitals audit, and client outreach email generator.
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#274K
#228K among extensions
Version
1.5.3
updated 11 Oct 2026
About VitalsSniper: Proof-of-Flaw Web Inspector
VitalsSniper is an in-browser technical website auditor and proof-of-flaw inspector for web developers, technical SEO consultants, and digital agency teams.
Most site audit tools rely on third-party server queues, taking minutes to crawl or returning simulated metrics that fail to reflect live client-side DOM reality. VitalsSniper inspects the live DOM of the active tab directly in your local browser engine without server queue delays.
KEY AUDIT CAPABILITIES
1. CMS and Page Builder Detection
Identifies active content management systems, visual site builders, and frontend application frameworks from live runtime signatures and script fingerprints.
2. DOM Bloat and Tree Depth Analysis
Measures total DOM node count, maximum nesting depth, and flags deep branches exceeding 15 levels that degrade browser layout passes and interaction response times.
3. Document Payload and Transfer Weights
Measures in-memory HTML size, wire transfer weight, and asset distribution to pinpoint oversized payloads that slow mobile first contentful paint.
4. Viewport and Accessibility Checks
Evaluates viewport meta configuration to identify user-scalable restrictions that impair pinch-to-zoom accessibility under WCAG 2.2 Criterion 1.4.4.
5. Schema.org JSON-LD Verification
Parses and checks structured data blocks for syntax validity, entity graph connections, and missing required properties.
6. Third-Party Script Contention
Inventories external, inline, and asynchronous scripts competing for main-thread execution time.
7. Evidence-Grounded Outreach Teardowns
Generates structured diagnostic teardowns (cold email, LinkedIn DM, and video teardown outlines) directly from observed technical flaws, citing measured values instead of vague generalizations.
8. Teardown Briefs and CRM Exports
Saves reviewed prospect sites locally and exports client-ready 1-page PDF teardown briefs or RFC 4180 CSV logs.
HOW TO USE IT
Step 1: Open any target website in Google Chrome.
Step 2: Click the VitalsSniper extension icon in your toolbar or press Ctrl+Shift+A (Command+Shift+A on macOS).
Step 3: Review the instant proof-of-flaw audit card showing DOM depth, CMS signatures, script weight, and viewport health.
Step 4: Switch to the Outreach tab to generate tailored, data-driven email or LinkedIn teardown pitches citing the exact flaws detected.
Step 5: Export a client-ready 1-page PDF dossier or save the lead to your local prospect list.
PRIVACY AND PERMISSIONS
VitalsSniper runs client-side inside your browser sandbox. Your browsing history, visited URLs, and client audit data are never sold and never sent to external tracking servers. All analysis executes directly on the active tab only when invoked by the user. Optional account authentication occurs only if connecting to your WebAudits.pro workspace.
SUPPORT AND FEEDBACK
Documentation: https://webaudits.pro/docs
Customer Support: https://webaudits.pro/about
Publisher Email: sfs@webaudits.pro
Website: https://webaudits.pro