NVX page inspector · block audit

AI block-level website review

Paste a live URL. BlockNVX segments the page into numbered blocks, runs vision + language analysis on each region, and returns P1/P2 fixes your dev team can ship.

block = page sections · nvx = Navigation · Visual · eXperience

Live URLBlock segmentationVision annotationsDev task export
Submit a URL View sample teardown
blocknvx inspector
01 · Navigation
02 · Hero
03 · Selling points
04 · Product images
05 · Social proof
06 · Pricing
07 · FAQ
08 · Form
09 · Footer
What happens after you enter a URL

Four inspector passes

Crawl → slice → annotate → export. Built like a devtools panel, not a marketing dashboard.

01

Crawl the page

Full-page screenshot and text extraction from the live URL.

02

Slice into blocks

Navigation, hero, proof, pricing, FAQ, forms, footer — independent regions.

03

Generate annotations

Vision + language models score conversion, copy, accessibility, mobile.

04

Output redesign tasks

Priority fixes, alt copy, mobile notes, and dev-ready checklist.

Why block-by-block review

Editorial evidence — not a data wall

Accessibility

94.8% of top homepages fail WCAG checks

WebAIM Million report — detectable WCAG 2 errors on 948,000 of 1,000,000 homepages. BlockNVX runs per-block accessibility checks: contrast, alt text, headings, labels.

Accessibility review →
Conversion

32 improvement points in large checkouts

Baymard Institute research — average large e-commerce checkout flows expose dozens of fixable friction points. BlockNVX maps each to a numbered block.

E-commerce review →
Performance

~57% desktop · ~50% mobile pass CWV

DebugBear HTTP Archive CrUX analysis — only 57.1% of desktop and 49.7% of mobile sites pass Core Web Vitals. Speed risks flagged per block, not as a single score.

Mobile review →
AI block review sample

What you send to a client or developer

Not a backend UI — an actionable redesign draft.

Block 02 · Hero

Problem

Headline leads with product category, not customer outcome.

Impact

Visitors cannot answer "what do I get?" in 5 seconds — bounce risk on paid traffic.

Suggested copy

"Ship campaigns 2× faster — without another dashboard."

Design suggestion

Reduce hero padding 24px · increase CTA button size · add single proof line under headline.

Mobile note

CTA drops below fold on iPhone 14 — reduce hero padding 24px.

SEO note

H1 lacks target keyword — align with primary search intent for campaign analytics.

Dev task

Update H1, subhead, and primary button label · est. 1 hr.

See full report format
Audit dossiers

Four review volumes — each with unique block issues

Vol. A

Shopify store

  • Product gallery tap targets
  • Size guide placement
  • Review density above fold
  • Sticky add-to-cart timing
Open dossier →
Vol. B

SaaS landing page

  • ICP clarity in hero
  • Demo form field count
  • Pricing tier anchoring
  • Feature wall vs narrative
Open dossier →
Vol. C

Webflow agency project

  • Pre-delivery block QA
  • Client-ready report export
  • Revision v1 vs v2 compare
  • White-label annotations
Open dossier →
Vol. D

E-commerce checkout

  • Guest checkout default
  • Trust row before payment
  • Shipping window clarity
  • Return policy link placement
Open dossier →
Vision AI pipeline

Vision · language · long-context — per block

Vision models

Understand page screenshots — layout hierarchy, CTA visibility, spacing, mobile crop.

Language models

Analyze copy and information architecture — headlines, CTAs, FAQs, product descriptions.

Long-context models

Read the entire page — detect message drift between hero and pricing blocks.

Outputs: structured block audits · alt headlines · CTAs · FAQs · product copy · mobile-simplified versions · multi-language support on Agency tier.

Free block scan
  • 12+ blocks segmented
  • Priority P1 / P2 labels
  • Dev-ready task export
Submit a URL

Receive a block teardown

Paste a live page. BlockNVX returns annotated blocks, priority fixes, and a redesign task list.