iOS App Tracking Transparency
When people opt out of tracking on iPhone, Meta and TikTok lose the identifiers they use to match conversions to ads.
Fix Conversion API with hashed first-party data
Available for new projects
Hi, I'm Chamok MahontoConversion Tracking & Google Ads Specialist
Accurate tracking. Profitable ads. Decisions based on real data.
I help ecommerce brands, local service businesses and agencies fix broken tracking and scale Google Ads and Meta Ads with confidence. From GA4, GTM and server-side tracking to Meta Pixel + Conversion API, I build the measurement foundation your ad campaigns need to grow.
Web Analytics SpecialistGA4 · GTM · Server-side
3+Years of experience
100+Projects managed
80+Clients served
98%Client satisfaction
Tools & platforms I set up and connect
- Google Tag Manager
- Google Analytics
- Google BigQuery
- Looker
- Google Search Console
- Google Ads
- Meta
- TikTok
- Snapchat
- Shopify
- WooCommerce
- WordPress
- Webflow
- Wix
- BigCommerce
- Squarespace
- Magento
- Laravel
- Framer
- HubSpot
- Salesforce
- Zapier
- Make
- Calendly
- Typeform
- Google Cloud
- Cloudflare
The silent revenue leak
Your pixels stopped telling the whole truth
Every browser update, privacy rule and ad blocker chips away at browser-only tracking. Your ad platforms then optimise on incomplete data, and your cost per sale climbs.
Safari ITP & browser privacy
Safari limits cookies set by JavaScript to days, not months, so returning buyers often look like brand-new visitors.
Fix Server-set first-party cookies on your subdomain
Ad blockers
Blockers stop requests to well-known tracking domains, so your pixel never fires for a slice of your visitors.
Fix Server-side GTM on a first-party endpoint
Consent banners
Without Consent Mode v2, visitors who decline send nothing at all, and Google cannot model the conversions you lost.
Fix Consent Mode v2 wired to your consent banner
Tracking health check Get my free audit
You are probably leaking revenue if…
Tick everything that sounds familiar. It takes 30 seconds.
0/6
Looks healthy so far
Tick any that apply. If none do, a quick audit can still confirm your numbers are right.
Services
Services that drive results
Google Ads, Meta Ads and advanced conversion tracking services for businesses worldwide, built on accurate data.
GA4 & Google Tag Manager Setup
Complete GA4 event architecture with GTM: custom events, funnels, enhanced ecommerce, cross-domain tracking and BigQuery linking, for Shopify, WooCommerce, Webflow and custom sites.
Learn moreServer-Side Tracking & Meta CAPI
Server-side GTM with Stape or Google Cloud, Meta Pixel + Conversion API and Google Ads enhanced conversions. Recover data lost to ad blockers and iOS restrictions.
Learn moreGoogle Ads Management
Search, Display, YouTube and Performance Max campaigns built around high-intent keywords, tight local targeting and smart bidding, so your budget turns into calls, leads and sales.
Learn moreChatGPT Ads & Conversion Tracking
Get ready for ads inside ChatGPT: OpenAI pixel and Conversions API set up and deduplicated, ChatGPT traffic measured in GA4, and tracking-first campaigns.
Learn moreMeta Ads (Facebook & Instagram)
Funnel-based Facebook and Instagram ad campaigns with creative testing, audience strategy and CAPI-powered optimization that keeps performing after iOS privacy changes.
CRM & Marketing Automation
CRM setup for HubSpot, GoHighLevel, Pipedrive and more, with Zapier and Make automations, lead routing, follow-ups and offline conversion syncing back to your ad platforms.
Learn moreReporting & Data Visualization
Looker Studio dashboards for revenue, ROAS, leads and campaign performance, so you see what is working at a glance and make decisions with confidence.
Learn moreIndustries I support:
Tracking by platform
Conversion tracking for the platform you run on
Every platform breaks tracking in its own way. Pick yours to see exactly what I set up.
Shopify conversion tracking
If you run ads to a Shopify store and your GA4, Google Ads or Meta numbers never match your Shopify orders, this page is for you.
- Purchases tracked through Customer Events, not retired thank-you page scripts
- Meta Pixel and Conversions API deduplicated with the Shopify order ID
WooCommerce conversion tracking
This is for WooCommerce store owners whose ad platforms report fewer sales than WooCommerce does, or the same sale twice.
- Reliable GA4 ecommerce dataLayer, usually via GTM4WP or Stape's plugin
- Purchases captured even when customers never return from the payment gateway
WordPress conversion tracking
This is for service businesses with a WordPress site, where a lead is a form fill, a phone call, a WhatsApp message or a booked appointment.
- Form tracking built for your form plugin, counting only successful submissions
- Click-to-call, WhatsApp and email clicks tracked as separate lead types
GoHighLevel conversion tracking
This is for agencies and service businesses running ads into GoHighLevel funnels, forms and calendars.
- Form, survey and booking events tracked even when embedded in iframes
- Pipeline stage changes sent back to Google Ads and Meta as offline conversions
Webflow conversion tracking
This is for teams who build on Webflow and run Google or Meta ads to it, whether the goal is demo requests or ecommerce orders.
- Native Webflow form submissions tracked without a redirect
- Webflow Ecommerce purchases sent with order value
ClickFunnels conversion tracking
This is for coaches, course creators and info-product sellers running ads into ClickFunnels 2.0.
- Opt-in, order form and upsell steps each tracked correctly
- Upsell and order bump revenue included in purchase value
How server-side tracking works
Every event, checked and delivered from your own server
Your website sends each event once to a server container on your own subdomain. It is enriched, deduplicated and consent-checked, then forwarded to every ad platform.
yourstore.com
page_view/products/green-tea
Server GTMsgtm.yourstore.com
- 01 Collect
- 02 Enrich & hash
- 03 Deduplicate
- 04 Check consent
Destinations
- GA4sent
- Google Adssent
- Meta CAPIsent
- TikTok Events APIsent
Animated example. Event names follow GA4 recommended events.
Portfolio
Tracking & Google Ads case studies
Meta Pixel & CAPI, Google Ads conversion tracking and Google Ads campaign projects for Bangladeshi and international brands.
Meta Pixel & CAPI
Histro Clothing
A hybrid browser + server-side tracking build for a Bangladeshi fashion brand, recovering lost purchase events and lifting Meta event match quality from 3/10 to 9/10.
Read case study
Meta Pixel & CAPI
Shukhi Life
Server-side Meta tracking for a natural food and herbal supplement store, so every add-to-cart, checkout and purchase from Facebook Ads is captured and attributed.
Read case study
Meta Pixel & CAPI
Lesson Computer
Full lead and course-purchase tracking for a Mauritius-based online tuition provider, replacing Pixel-only tracking that lost 40–60% of events on iOS and blocked browsers.
Read case study
Meta Pixel & CAPI
Modalclo
Deduplicated Pixel + Conversions API and GA4 enhanced ecommerce for a Shopify loungewear brand, recovering purchases lost to iOS restrictions and ad blockers.
Read case study
Meta Pixel & CAPI
ProCloudify
Hybrid Meta tracking for a hosting and domain provider, with server-side purchase events, a custom tracking domain and retargeting audiences built from high-intent actions.
Read case study
Meta Pixel & CAPI
Tea of Sylhet
A WooCommerce tea brand now sends server-side Meta purchase events with revenue, tracks custom micro events in GA4 and retargets shoppers by behavior.
Read case studyProcess
How I deliver results
A proven 4-step process that turns your marketing and analytics into a growth engine.
- 01
Research & strategy
I study your business, audience, goals and competitors to build a data-driven ad strategy that maximizes ROI.
- 02
Tracking & setup
I implement GA4, GTM, server-side tracking and Conversion API so every conversion is measured accurately.
- 03
Optimization & scaling
I optimize campaigns, fix funnel leaks and apply CRO so your budget brings more conversions.
- 04
Reporting
You get monthly reports, custom dashboards and clear insights on what to do next.
Browser-only vs server-side
The same traffic, measured two very different ways
| What changes | Browser-only tracking | Server-side tracking ✓ |
|---|---|---|
| Where tags run | In each visitor's browser | In your own server container, with a light browser tag |
| Ad blockers | Requests to known tracking domains get blocked | Events go to your own subdomain first |
| Cookie lifetime in Safari | Script cookies capped to days | Server-set first-party cookies last much longer |
| iOS opt-outs | Identifiers lost, fewer matched conversions | Hashed email and phone via CAPI and Enhanced Conversions |
| Data control | Every vendor script collects what it wants | You decide exactly what each platform receives |
| Consent | Banner only, declined visitors vanish | Consent Mode v2 signals on every event |
| CRM & offline sales | Not possible | Closed deals sent back to Google Ads and Meta |
| Page speed | More third-party scripts in the browser | Fewer scripts, lighter pages |
Lost conversion calculator
What is missing tracking costing you?
Move the sliders to your numbers. See how many conversions your ad platforms are not seeing, and what that hides.
Conversions you are not seeing15/mo
Unattributed value / month$1,800
Unattributed value / year$21,600
Cost per conversion you see$50
Real cost per conversion$40
Estimates only, based on the numbers you enter. Untracked conversions still happen, but your ad platforms cannot learn from them, so bidding gets worse over time.
Measure my real numbersFree tools
Free conversion tracking tools
Check click IDs, hash data for enhanced conversions, generate dataLayer and Consent Mode code, and find your break-even ROAS.
Tracking Health CheckSix yes-or-no questions that reveal whether your ad platforms are learning from incomplete or duplicated conversion data.Lost Conversion CalculatorEnter your ad spend, reported conversions and order or lead value to see the conversions your ad platforms are missing.UTM BuilderCreate consistent campaign URLs with utm_source, utm_medium and utm_campaign, with warnings for the mistakes that split your GA4 reports.Click ID & UTM CheckerPaste the URL people land on after clicking your ad.Enhanced Conversions Hash GeneratorCheck that your user data is normalised and hashed correctly before it goes to Google Ads or Meta.GA4 dataLayer GeneratorPick an event, fill in the values, and copy dataLayer code that follows the GA4 ecommerce format.Break-even ROAS CalculatorFind the minimum ROAS and maximum cost per order or lead your business can afford, then set targets that leave a profit.Consent Mode v2 Code GeneratorCreate the consent default snippet that must load before your Google tags, and the update call your cookie banner should fire.
Available for new projectsChamok MahontoConversion Tracking & Google Ads Specialist
Rangpur, BangladeshMy daily stack
About me
Your ads are only as good as the data behind them
I'm Chamok Mahonto, a marketing attribution, conversion tracking and server-side tracking specialist based in Bangladesh, working with clients worldwide. I set up and repair GA4, Google Tag Manager, Google Ads conversion tracking, Meta Pixel and Conversion API (CAPI), enhanced ecommerce and Consent Mode v2, so every lead and sale is measured correctly.
On top of that clean data, I plan, launch and optimize Google Ads (Search, Display, YouTube, Performance Max) and Meta Ads (Facebook & Instagram) campaigns. The result: less wasted ad spend, better lead quality, and reports you can actually trust.
- Browser + server-side tracking for Google Ads & Meta Ads
- Server-side GTM with Stape, Google Cloud & Cloudflare
- Click ID persistence: gclid, fbclid, ttclid, msclkid
- Consent Mode v2 with GDPR / CCPA compliant setup
- Offline conversions from HubSpot, GoHighLevel, Salesforce, Pipedrive
- Looker Studio, BigQuery & Power BI reporting
Certifications
Certified in tracking, analytics & Google Ads
Professional training that backs every setup I deliver.
Reviews
What my clients say
“Chamok completely transformed our tracking setup. We were missing nearly half of our conversions before. Now we have 99% accuracy and our ROAS has improved by 3x.”
“We reduced our cost per lead by 42% after working with Chamok. His approach to Google Ads optimization is data-driven and results-focused.”
“Chamok completely restructured our Google Ads campaigns and improved lead quality significantly. We now receive consistent, high-intent homeowner inquiries at a much lower cost.”
“Our Google Ads were wasting money before working with Chamok. He optimized everything around real booking intent, and within weeks we started getting consistent, qualified leads.”
“Chamok is our go-to expert for all things tracking and analytics. His GTM implementations are clean, well-documented, and always on point.”
“Chamok understands local service lead generation better than anyone we have worked with. He focused our campaigns on high-intent searches and helped us generate consistent leads without increasing budget.”
Watch & learn
Free tracking tutorials on YouTube
Step-by-step videos on Google Ads conversion tracking, GTM, server-side tracking and form or booking tracking.
Blog
Guides on tracking, GA4 & Google Ads
Practical answers to the tracking and ad questions my clients ask most.
GA4 & Tracking
Consent Mode v2 Explained: What Small Businesses Must Do
A plain-English guide to Google Consent Mode v2: the four signals, basic vs advanced mode, who needs it, and how to set it up and test it in GTM.
GA4 & Tracking
GA4 Cross-Domain Tracking: Setup, Testing and Common Failures
When GA4 cross-domain tracking is needed, how to configure your domains and the _gl linker, handle iframes and payment gateways, and fix what breaks it.
GA4 & Tracking
GA4 Enhanced Ecommerce Tracking: A Complete Setup Checklist
The step-by-step checklist I use to set up GA4 ecommerce tracking: events, data layer, GTM tags and testing, so product and revenue reports are accurate.
FAQ
Google Ads & tracking FAQ
Quick answers about conversion tracking, server-side tracking and ads management.
What does a conversion tracking specialist do?
A conversion tracking specialist makes sure every lead, call and sale from your website is recorded correctly in GA4, Google Ads and Meta Ads. I set up Google Tag Manager, custom events, Meta Pixel + Conversion API and server-side tracking, then test everything so your ad platforms optimize on real data.
What is server-side tracking and do I need it?
Server-side tracking sends conversion data from a server (for example server-side GTM on Stape or Google Cloud) instead of only from the browser. It recovers data lost to ad blockers, iOS privacy limits and cookie restrictions. If you spend money on Google Ads or Meta Ads, it usually pays for itself through better attribution and optimization.
How long does it take to fix GA4 tracking?
Most basic GA4 tracking issues are fixed within 1–3 business days. Advanced setups such as enhanced ecommerce, cross-domain tracking, server-side tracking or Consent Mode v2 take 3–7 days. I always start with a full audit, then implement and test the fixes.
Can you set up Meta Pixel and Conversion API (CAPI)?
Yes. I set up Meta Pixel with Conversion API using browser and server events, proper event deduplication and advanced matching, for Shopify, WooCommerce, WordPress, Webflow and custom websites.
Do you provide monthly Google Ads and Meta Ads management?
Yes. Monthly management covers campaign setup, conversion tracking checks, keyword and audience optimization, budget control, creative testing and performance reports for both Google Ads and Meta (Facebook & Instagram) Ads.
What industries do you work with?
I work with ecommerce brands, local and home service businesses (cleaning, HVAC, chimney, renovation), lead generation businesses, real estate, SaaS, agencies and coaches. Tracking and ad strategy are tailored to each business model.
Which platforms do you support?
Shopify, WordPress, WooCommerce, Webflow, Wix, ClickFunnels, GoHighLevel, and custom PHP or React websites. I also integrate CRMs, webhooks, Zapier, Make.com and Klaviyo.
Can you set up ChatGPT Ads and ChatGPT conversion tracking?
Yes. I set up the OpenAI measurement pixel and the server-side Conversions API, deduplicate them with a shared event ID, and measure ChatGPT traffic in GA4 alongside Google Ads, so you can test the new channel with reliable data. ChatGPT Ads is still new and changes often, so I check the current OpenAI documentation on every setup.
How do you charge for your services?
Tracking setups and fixes are a one-time fee. Ads management and ongoing optimization are a monthly retainer. After reviewing your needs, I give clear, upfront pricing with no hidden costs.
Do you guarantee results?
No one can ethically guarantee specific ad results. What I guarantee is accurate tracking, a correct setup and best-practice optimization, so you make decisions on reliable data and grow sustainably.
Do you work with clients outside Bangladesh?
Yes. I work with clients in all countries and time zones, including many local service businesses in the USA. Everything is handled online through email, WhatsApp and video calls.
How do we get started?
Send me your website and tracking goal on WhatsApp. I will review your current setup for free and suggest the next steps.