Tracker

42 on screen nowDemo

Real sizes, demo account · analyze your site, toggle modules, size your tracker. Join the waitlist →

Try with your siteDrop your domain and we'll size your usage in seconds, no install.

preview · 1 modulecookie-free · no personal data

1.4KB1,391B · gzipped

Build a tracker that's exactly as small as it needs to be. Toggle modules, see the cost, ship the minimum.

ModulesToggle modules · live size + event preview

Core+1272BRequired

Pageviews · sessions · referrer · UTM. Required.

pageview

SPA Navigation+231Blow

History API: pushState, replaceState, popstate. For Next, React Router, Vue Router, Nuxt.

~0.5/pageview·pageview on route change

Scroll Depth+260Bmedium

Max depth reached, 0–100%. Passive listener, no jank.

depth on leave

Engagement Time+242Blow

Counts time only while the tab is visible. Powers "time on page".

active time on leave

Outbound Links+403Blow

Auto-detects external + mailto: + tel:. No manual tagging.

~0.3/pageview·click.outbound·click.mailto·click.tel

File Downloads+353Blow

PDF · zip · docs · media. By href extension or a download attribute.

~0.05/pageview·click.download

Session Duration+275Bmedium

pagehide + visibilitychange. Survives tab close.

needsScroll DepthneedsEngagement Time

~1/pageview·leave

Web Vitals+611Blow

LCP · INP · CLS · FCP · TTFB. One final value per pageview, no sampling.

~5/pageview·vital · lcp, inp, cls, fcp, ttfb

AB Experiments+253Blow

Records A/B exposures from edge-applied variants. Pairs with the /ab designer.

~1/pageview·exp

2.8 KB budget1,391B / 2,867B

Estimated usage~4.5 events/session

~225Kevents/mo

based on 50K sessions · ~3 pages/session · analyze your site above for accuracy

core · 150KSPA Navigation · 75K

Embedapi.getvero.dev/t.js · gzipped

HTML

<script src="https://api.getvero.dev/t.js?s=vr_demo_a1b2c3d4e5f6" defer></script>

Sample event stream

mock data · 0 events