GA4 · Google Tag Manager · Measurement

You rebuilt your site.
Did your data survive?

New GA4 & GTM service by tsvik.com — measurement migration from your old site to your new one.

A redesign or migration makes the site look better — and quietly breaks the tracking underneath. GA4 stops firing on the new pages, events go missing, conversions point at old URLs. The site looks great; the numbers stop meaning anything. I make measurement work again — and prove it.

Get a measurement audit Contact me

The problemWhat quietly breaks in a redesign or migration

New site, new theme, new URLs — and the tracking that was wired into the old site rarely comes across intact. Usually it fails silently: no error, just wrong or missing numbers you don't notice until a report looks off.

  • GA4 tag missing or duplicated on the new templates
  • Events (form submits, add-to-cart, calls, signups) never re-implemented
  • Conversion actions still pointing at old URLs that 301'd away
  • The ecommerce dataLayer gone, so purchase/value data disappears
  • Cross-domain broken between site and app/checkout
  • Consent Mode and the cookie banner misconfigured
  • New URL structure breaks year-over-year comparisons
  • Ad platforms (Google, Meta) optimizing on bad conversion data

The serviceWhat I set up and verify

GA4, done right

Property and data streams configured, tag firing once on every page, key events and dimensions mapped to how your business actually works.

Clean, documented GTM

A tidy Google Tag Manager container — triggers, variables and tags named and organized, with a change log so it's maintainable, not a black box.

Event & conversion tracking

Form submits, calls, signups, add-to-cart, purchases — pushed via dataLayer and wired to Google & Meta as conversions, with enhanced conversions.

Ecommerce measurement

Full ecommerce dataLayer (items, value, transaction ID) so revenue, ROAS and product reports are accurate again.

Consent Mode v2 & privacy

Cookie consent wired to Consent Mode so you stay compliant without throwing away measurable data.

Cross-domain & server-side

Cross-domain between site, checkout and app, plus optional server-side GTM to recover data lost to ad blockers and short cookie lifetimes.

The processHow it works

Audit. I review the current setup — what's firing, what's duplicated, what's missing — and hand you a plain-English list of what's broken.
Measurement plan. We agree on the events and conversions that matter for your business, so we track what drives decisions, not everything.
Implement. I build it in GTM and GA4 — tags, triggers, dataLayer, conversions — cleanly and documented.
QA & verify. Every event checked in DebugView and Tag Assistant. You get proof it works, not a promise.
Handover. Documentation and a short walkthrough, so your team knows what's tracked and how.

Who it's forYou'll want this if…

  • You redesigned or migrated and aren't sure tracking survived
  • You're running ads but don't trust the conversion numbers
  • Your reports don't match your backend / CRM
  • You're moving from Universal Analytics habits to GA4
  • You have a site + app or checkout on separate domains
  • Nobody can explain what's in your GTM container

Let's make your numbers trustworthy again

Start with a measurement audit. I'll tell you exactly what's broken and what it's costing you.

Message me on WhatsApp Get in touch

FAQ

Do I need Google Tag Manager for this?
Not strictly, but it's strongly recommended. GTM keeps tags out of your theme, makes changes safe and reversible, and means you're not editing code every time something changes. I set it up cleanly and documented.
Will I lose my historical data?
Your existing GA4 history stays. What a migration usually breaks is going forward — new pages not tracked, events missing, URL changes that make comparisons messy. I fix the forward-looking setup and flag anything that affects historical comparisons.
Is this just GA4, or ad conversions too?
Both. Measurement is only useful if it feeds decisions — so I wire the same events to Google Ads and Meta as conversions (with enhanced conversions), so your campaigns optimize on real data.
Do you do server-side GTM?
Yes, when it's worth it. Server-side tracking recovers data lost to ad blockers and short cookie lifetimes. I'll tell you honestly whether your traffic and budget justify it.
How do I know it actually works?
I verify every event in GA4 DebugView and Google Tag Assistant before handover, and show you. You get proof, not a promise.

Related reading: server-side GTM for B2B and recovering remarketing lists with server-side tracking.

Tsvi Machluf, PPC & Analytics Expert

13+ years running paid media and measurement for B2B SaaS companies, ecommerce brands, and growth-stage SMBs. Google Ads, Meta Ads, retail media, GA4/GTM from set up to ongoing optimization.