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Features

Everything you expect, plus the receipts

Vitrus covers the standard analytics surface — traffic, sources, funnels, retention, performance, errors. What it adds is proof: every number carries the query that produced it, and anything an AI cannot prove never reaches you.

Measure

What gets collected, and what deliberately does not.

AI traffic Roughly seven in ten visits that arrive from an AI assistant land in Google Analytics' "direct" bucket, because Gemini, Perplexity and Copilot mostly send no campaign tag. Read more → Cookie-free No cookie, no localStorage identifier, no fingerprint. Read more → Web Vitals LCP, INP, CLS, FCP and TTFB collected from actual visitors through the browser's own PerformanceObserver. Read more → Error tracking Uncaught errors and unhandled promise rejections from real visits, grouped by message, page and browser. Read more → Autocapture Outbound clicks, form submissions, field-level abandonment, scroll depth and rage clicks are captured from the moment the script loads. Read more →

Analyse

Turning events into answers you can act on.

Funnels Build a funnel from pages and events in a few clicks. Read more → Retention A cohort matrix of who came back, day by day. Read more → Live dashboard A live visitor count over the last five minutes, a hand-drawn SVG time series with no charting library, and every breakdown one click from the query behind it. Read more → Campaigns & UTM Full UTM breakdown by source, medium and campaign, with gclid, fbclid, msclkid and ttclid recognised as paid even when the link carries no utm_medium. Read more →

Prove

The part nobody else ships: evidence attached to every number.

Proof layer Every metric in Vitrus travels as {id, sql, params, window, value}. Read more → MCP for agents Connect Claude, Cursor or any MCP client and ask questions in plain language. Read more → Privacy modes Standard mode is already cookie-free and consent-free. Read more →

Operate

Running it — on our servers or on yours.

Proactive digest A weekly or daily summary in Slack or email: what happened, what changed, what to do. Read more → Self-hosting The core is Apache-2. Read more → Teams & sites Unlimited sites per workspace, invite your team, switch between properties without logging out. Read more →

See it on your own traffic

One script tag. No credit card, no cookie banner, no consent flow.

Start free Read the docs