Lensux documentation
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Quick start
Run your first Lensux audit in minutes — the free scan with no account, the 3-day trial, adding a website and reading your first score.
Get startedHow the audit works
The four kinds of results in Lensux, the 66 checks in the full audit, how each finding names the element and the fix, scores and severities, multi-page audits and competitor comparison.
Get startedReading your report
Understand your Lensux report — the overall score, category scores, severities, the change badges, score history with before/after, and the PDF export.
Guideline libraries
Ecommerce guidelines
Lensux checks online shops against 149 guidelines across seven page types — product, category, on-site search, cart, checkout, homepage and account — with B2B rules. Here's how they work.
GuidelinesSaaS guidelines
Lensux checks SaaS and B2B products against 52 guidelines across the landing, pricing, sign-up/log-in and onboarding pages. Here's what each covers.
Insight & AI
Heatmaps & behaviour
Lensux has a predicted attention map and clarity score, plus real-visitor heatmaps of clicks, scroll depth, frustration clicks and contrast on a full-page capture. Here's how to use them.
AIAI audits
Lensux's AI audits — design psychology, design trends, AI visitor simulation and per-zone advice — run on your own AI key. Here's how to connect a key and what each does.
AIFix with AI
Fix with AI turns your site's open audit findings into a prioritised, step-by-step fix plan with code, using your own AI key. Here's how to run it.
Keep it covered
Monitoring
Lensux re-audits your sites on a schedule and flags anything that breaks again, so a regression shows up before your client notices. Here's how monitoring works.
Keep it coveredPlans & billing
Lensux plans, what each unlocks, the 3-day free trial, the 4.99 € one-off audit, VAT-inclusive pricing and how to cancel.
DevelopersDeveloper API & MCP
Run the rule-based checks on any public URL from your code, your CI or an AI agent — REST plus an MCP-compatible endpoint.