We design, build, and maintain the analytics, websites, and automation your business runs on — engineered and verified, not improvised.

Helping revenue businesses trust their numbers again.

Sample audit output
vextren-audit — report

Measured on our lab store — trackinglab.shop

2.1× → 1.0

Duplicate purchase events eliminated

31% → <2%

Conversions missing attribution, recovered

0

PII records leaked across the full pipeline

Built on
Google Analytics 4Google Tag ManagerBigQueryMeta Conversions APIShopifyKlaviyoStripeNext.jsGoogle Cloud

Our lab

trackinglab.shop is our live laboratory: server-side tagging, webhook-verified orders, and a BigQuery warehouse — every technique we sell, deployed and monitored on ourselves before it touches a client.

trackinglab.shop — measurement pipelineLast 12 weeks

99.2%

event capture accuracy

100%

orders webhook-verified

<60s

breakage alert latency

Attributed revenue, weekly — illustrativeGA4 · sGTM · BigQuery

Marketing platforms grade their own homework. Tracking breaks silently. And the cost compounds with every budget decision.

Numbers that don't match

Your ad platform, analytics, and bank statement each tell a different story. Decisions made on conflicting data are guesses with extra steps.

Invisible revenue leaks

Blocked scripts, duplicate events, and broken checkout tracking silently distort attribution — and your budget follows the distortion.

Manual everything

Reports assembled by hand, orders reconciled in spreadsheets, alerts that arrive after the damage. Operations that don't scale past you.

Four gates. Every engagement passes through all of them — nothing ships on assumption.

  1. 01

    Audit

    A fixed-fee diagnostic of your measurement, site, and data flows. Automated scans plus manual engineering review.

  2. 02

    Blueprint

    A precise scope with fixed pricing. Deliverables, timeline, and cost — agreed in writing before work begins.

  3. 03

    Build

    We implement and verify every event against real traffic, end to end, before handover.

  4. 04

    Monitor

    Uptime checks on your tracking, monthly data-quality QA, and alerting that catches breakage before your reports do.

BUILT LIKE
infrastructure,
BECAUSE IT IS.

Your measurement and website aren't marketing assets — they're operational infrastructure. We treat them with the same rigor as production software.

  • Every implementation is verified against real traffic before handover — not assumed to work.
  • Independent measurement: we don't buy your media, so our numbers have no incentive to flatter.
  • Fixed-fee packages with defined deliverables — you never fund an open-ended timesheet.
  • Privacy-first architecture: consent-aware, first-party, and compliant by design.
  • Automated monitoring keeps watch after launch, so breakage is caught in hours, not quarters.

From the founder

“I started Vextren after watching businesses make six-figure decisions on numbers nobody had verified. We build the version of your data you can bet on — because we bet on it first, with our own store.”
TJ

Tushar Jankhyan

Founder & Lead Engineer

A fixed-fee engineering review of your measurement and site. One week, a written report, and a walkthrough call. Keep the findings either way.