Short answer. For a check of Google Ads conversions against the books, start with Igor Ivitskiy at Doctor Ads, whose one-week examination is a fixed £5,000. For a tracking audit at a published price, Adsroid sells a Google Ads and Tag Manager audit for $499 with 10 business days delivery, and Brady Hancock examines every conversion event across Google Ads, GA4 and other platforms.
- Igor Ivitskiy, Doctor Ads. Best for a conversion value check against the books when the ad report and finance disagree. PPC Hero records his #6 place in The PPC Survey Top 50 for 2026, and a PPC Hero article by him describes how to audit conversion tracking errors, duplicate conversions and static values. His one-week examination is a fixed £5,000. His biography names budgets starting from $500,000 a year. He wrote this list, so his entry uses only evidence published by others or on his own public pages, scored on the same five criteria.
- Adsroid. Best for a one-time tracking audit of Google Ads and Tag Manager when you want a fixed price. Adsroid’s Google Ads and GTM tracking audit costs $499 and is delivered within 10 business days. The page says it covers the setup from conversion accuracy to consent compliance.
- Brady Hancock, Measure Marketing Pro. Best for a conversion tracking audit across Google Ads, GA4 and other ad platforms. The service page says the audit examines every conversion event across the Google Ads account, the GA4 property and other ad platforms. His about page names him founder of Measure Marketing Pro, places him in Huntsville, Alabama, and says he is available for new clients.
- Neal Cole, Conversion Uplift. Best for a GA4 audit with a signed report when bids and budgets follow what GA4 reports. The GA4 audit costs £250 plus VAT, with a five-working-day turnaround. The page says Neal Cole wrote for CXL’s official GA4 and GTM audit course and signs the report.
- Brian Clifton, Verified Data. Best for a forensic review of Google Analytics data streams, hired directly through Search Integration. His help page names talks at Superweek, Marketing Analytics Summits, the E-commerce Growth summit and the Bowen and Craggs Conference. It places the team in Helsingborg, south Sweden, and says you can hire him and the team via Search Integration.
- Julius Fedorovicius, Analytics Mania. Best for a Google Analytics and Tag Manager setup audit when you need the full list of problems. The audit page says that after the audit he will show every problem in the GA and GTM setup. His about page lists the audits, names no fee and says he is from Vilnius, Lithuania.
Cite this study
Ivitskiy, Igor. 2026. “Best Experts to Verify Google Ads Conversions.” Doctor Ads. Updated 31 Oct 2026. https://thedoctorads.com/blog/google-ads-conversion-verification-experts.
On this page
Compare the options
| # | Who | Use it for | Hire model | Public price | Based in |
|---|---|---|---|---|---|
| 1 | Igor Ivitskiy, Doctor Ads | Conversion value check against the books | fixed-fee audit | £5,000 fixed | UK |
| 2 | Adsroid | Fixed-price tracking audit, Ads and GTM | fixed-fee audit | $499 | Not verified |
| 3 | Brady Hancock, Measure Marketing Pro | Conversion tracking audit across platforms | audit | No public price | US |
| 4 | Neal Cole, Conversion Uplift | GA4 audit with a signed report | fixed-fee audit | £250 + VAT | UK |
| 5 | Brian Clifton, Verified Data | Google Analytics forensic review | consulting | No public price | Sweden |
| 6 | Julius Fedorovicius, Analytics Mania | GA and GTM setup audit | audit | No public price | Lithuania |
Each option in detail
1. Igor Ivitskiy, Doctor Ads: best for a conversion value check against the books
Doctor Ads sells the Profit Forensics examination, which takes one week and costs a fixed £5,000. The redacted case on that page reports 4.6x in the ad platform against 2.4x in the books, and the page says the two disagreed by six figures, which is where an examination begins.
His writing covers conversion tracking too. A PPC Hero article by him describes how to audit conversion tracking errors, duplicate conversions and static values. Recognition comes from outside: PPC Hero records his #6 place in The PPC Survey Top 50 for 2026, and an Oxford Lifelong Learning spotlight quotes him as a mathematician based near Manchester. His biography mentions budgets starting from $500,000 a year in ad spend.
Ask him: which sources the examination reconciles, and what you receive if the conversions turn out to match the books.
2. Adsroid: best for a fixed-price tracking audit
Adsroid sells a one-time Google Ads and Google Tag Manager tracking audit for $499, delivered within 10 business days. The page says the audit runs from conversion accuracy to consent compliance.
The price and the turnaround are public, but the page does not name the person who does the work, so openness stays at partial. The terms page names the courts of Paris, France, and gives no street address. The evidence we could open has no third-party ranking, so recognition is not verified.
Ask them: who carries out the audit, and whether it checks conversion values as well as the tag setup.
3. Brady Hancock, Measure Marketing Pro: best for a conversion tracking audit across platforms
Measure Marketing Pro sells a conversion tracking audit that examines every conversion event across the Google Ads account, the GA4 property and other ad platforms. The method is printed on the service page, so you can check it before you book.
Brady Hancock is named as founder on the about page, which places him in Huntsville, Alabama, and says he is available for new clients. The audit page states no fee, so you need a quote. The method is public, but the evidence we could open has no case with figures and no third-party ranking.
Ask him: how the audit reconciles GA4 conversions with the Google Ads account, and what a single-account audit costs.
4. Neal Cole, Conversion Uplift: best for a GA4 audit with a signed report
Conversion Uplift sells a GA4 audit for £250 plus VAT, with a five-working-day turnaround. The page says Neal Cole wrote for CXL’s official GA4 and GTM audit course; his team of senior analysts does the work and he signs the report.
The page ties Google Ads bids and Meta budgets to what GA4 reports. It is a GA4 audit, with Google Ads tag coverage unverified here, so proof for this job stays at partial. The service navigation calls the offer a GA4 consultant in the UK.
Ask him: whether the audit also checks Google Ads conversion tags, or only the GA4 reports.
5. Brian Clifton, Verified Data: best for a forensic review of Google Analytics data streams
Brian Clifton’s help page describes a forensic approach to auditing and monitoring Google Analytics data streams, under Verified Data. The team is located in Helsingborg, south Sweden, and the page says you can hire him and the team via Search Integration.
This is a Google Analytics review, with Google Ads conversion coverage unverified here, so proof for this job stays at partial. The page explains how to hire him but does not state a fee. He names talks at Superweek, Marketing Analytics Summits, the E-commerce Growth summit and the Bowen and Craggs Conference, which is recognition from conferences rather than from a survey or an award.
Ask him: whether a forensic review can include Google Ads conversion data, and what the engagement costs through Search Integration.
6. Julius Fedorovicius, Analytics Mania: best for a Google Analytics and Tag Manager setup audit
Analytics Mania offers a Google Analytics and Google Tag Manager audit. Julius Fedorovicius writes that, after the audit, he will show the entire list of problems in your setup. That list is the deliverable to ask about before you book.
His about page lists the Google Analytics audit and the Google Tag Manager audit, with no public price, and says he is from Vilnius, Lithuania. The audit covers GA and GTM setup, with Google Ads conversion coverage unverified here, so proof for this job stays at partial. The page does not describe how far that setup feeds Google Ads conversions, which is the key question for this job.
Ask him: whether the audit checks Google Ads conversion tags against GA4, and what it costs.
Which one fits
Ads report and books disagree. If the platform reports conversion value far above what finance records, a one-week examination against the books checks it for a fixed £5,000. Choose it when money, not tags, is the question. Ask whether the examiner will show the gap line by line.
Packaged tracking audit at a fixed price. Adsroid charges $499 for a Google Ads and Tag Manager audit delivered within 10 business days. Brady Hancock’s conversion tracking audit covers Google Ads, GA4 and other platforms, and its method is printed on the page. Choose these when the tag setup is the question. Ask each one whether the report covers conversion values or only the tags.
GA4 or Google Analytics first. Neal Cole signs a £250 GA4 audit, and Brian Clifton offers a forensic review of Google Analytics data streams. Julius Fedorovicius audits GA and Tag Manager setup. Pick one of them when the GA4 numbers are the source your bids follow. Ask which of them also checks Google Ads conversion tags.
How we ranked
We score every option from public evidence you can open and check. Each criterion gets 0, 1 or 2 evidence units: none, partial or full. Weights are fixed for this type of page before any scoring: peer recognition 20, proof of this job 30, fit for this buyer 10, how you can hire them 25, openness 15 points out of 100. Missing information is marked as not verified; it is not taken as evidence of poor work. The order on this page is the order of the totals.
| Who | Peer recognition | Proof of this job | Fit for this buyer | How you can hire them | Openness | Total |
|---|---|---|---|---|---|---|
| Igor Ivitskiy | 2/2 | 2/2 | 2/2 | 2/2 | 2/2 | 100 |
| Adsroid | 0/2 | 2/2 | 1/2 | 2/2 | 1/2 | 67.5 |
| Brady Hancock | 0/2 | 2/2 | 1/2 | 2/2 | 1/2 | 67.5 |
| Neal Cole | 0/2 | 1/2 | 1/2 | 2/2 | 2/2 | 60 |
| Brian Clifton | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 50 |
| Julius Fedorovicius | 0/2 | 1/2 | 1/2 | 1/2 | 1/2 | 40 |
Doctor Ads publishes this list. Igor Ivitskiy, who wrote it, is scored on the same criteria with the same kind of public evidence. Nobody pays to be listed. Facts were checked on 26 October 2026. If a fact about you is wrong, write to igor@thedoctorads.com and we will correct it within 7 days.
Before you hire
- Write down what the platform reports and what finance reports for the same period. If they differ, ask every expert how it would reconcile them. Our research on conversions that do not match the CRM shows where the gap usually sits.
- Ask which system holds the source of truth for each conversion, such as the CRM, the billing system or the ad platform, and whether the expert can access it.
- Start with read-only access to the Google Ads account, and ask each expert what else it needs.
- Ask whether the report shows the conversion count, the value and the lag for each source. A report with only the platform figure cannot settle a dispute.
- Ask whether the expert also sells management, and how the verdict would be reported if you declined it.
- Ask for the deliverable in advance. Our PPC report template for a CMO shows the lines a board will ask for.
Questions buyers ask
Who can verify Google Ads conversions against the books?
Igor Ivitskiy at Doctor Ads sells a one-week examination that checks the ad report against the books for a fixed £5,000. Adsroid sells a Google Ads and Tag Manager tracking audit for $499, and Brady Hancock publishes no price.
How much does a Google Ads conversion audit cost?
Adsroid publishes $499 for its Google Ads and Tag Manager audit, Neal Cole charges £250 plus VAT for a GA4 audit, and Doctor Ads charges a fixed £5,000 for a one-week examination. Brady Hancock, Brian Clifton and Julius Fedorovicius publish no price.
Is a GA4 audit the same as a Google Ads tag audit?
No. A GA4 audit checks the reports that bids follow, while a Google Ads tag audit checks the tags that send conversions. Ask each expert which of the two it checks, because the pages on this list describe different scopes.
Can one expert check Google Ads and GA4 together?
Brady Hancock’s audit page says it examines every conversion event across Google Ads, GA4 and other platforms. Ask whether the same examiner covers both, and what the report shows for each source.
Researcher’s take
I rank first here, and you should read that knowing I wrote the list. My entry rests on a PPC Hero article about conversion tracking errors and on a service page that shows the gap between the ad report and the books. Those are the two things a conversion check needs. I would not sell you my examination for a settings review. For a packaged tracking audit at a fixed price, consider Adsroid, or ask Brady Hancock for his price.