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Which ad blockers block your conversion tracking?

Yes. Of 10 standard tags, uBlock Origin stopped 10, Brave 10, AdGuard 8, VPN / DNS 4 and AdBlock 1, and Safari ITP cut their cookies to 7 days. Product Metrics: Full Signal Server-side Tracking got through all 6.

Product Metrics: Full Signal Server-side Tracking
6/6
✓ Gets through all 6
Standard tagsGoogle, Meta, ProfitMetrics and 7 more
0/6
Stopped or cut by all 6
See what each blocker stops
Product Metrics: Full Signal Server-side TrackingUnique endpoint on your own domain · auto-rotates if it is ever blocked
Gets through all 6

Five blockers stop standard tags, and Safari ITP cuts their cookies to 7 days. Product Metrics: Full Signal Server-side Tracking gets through all 6.

  • Google Tag Managergoogletagmanager.comuBlock Origin: Blocked.AdBlock: Gets through.Brave: Blocked.AdGuard: Blocked.VPN / DNS: Gets through.Safari ITP: 7-day cookie.Stopped by 3 of 5 blockers
  • Google Analytics 4google-analytics.comuBlock Origin: Blocked.AdBlock: Gets through.Brave: Blocked.AdGuard: Blocked.VPN / DNS: Blocked.Safari ITP: 7-day cookie.Stopped by 4 of 5 blockers
  • Google Ads taggoogletagmanager.comuBlock Origin: Blocked.AdBlock: Gets through.Brave: Blocked.AdGuard: Blocked.VPN / DNS: Gets through.Safari ITP: 7-day cookie.Stopped by 3 of 5 blockers
  • Google Ads conversiongoogleadservices.comuBlock Origin: Blocked.AdBlock: Gets through.Brave: Blocked.AdGuard: Blocked.VPN / DNS: Partly blocked.Safari ITP: 7-day cookie.Stopped by 4 of 5 blockers
  • ProfitMetricscdn1.profitmetrics.iouBlock Origin: Blocked.AdBlock: Gets through.Brave: Blocked.AdGuard: Gets through.VPN / DNS: Blocked.Safari ITP: 7-day cookie.Stopped by 3 of 5 blockers
  • TrackBeecdn.trackbee.aiuBlock Origin: Blocked.AdBlock: Gets through.Brave: Blocked.AdGuard: Gets through.VPN / DNS: Gets through.Safari ITP: 7-day cookie.Stopped by 2 of 5 blockers
  • Meta Pixelconnect.facebook.netuBlock Origin: Blocked.AdBlock: Blocked.Brave: Blocked.AdGuard: Blocked.VPN / DNS: Gets through.Safari ITP: 7-day cookie.Stopped by 4 of 5 blockers
  • Microsoft Advertising UETbat.bing.comuBlock Origin: Blocked.AdBlock: Gets through.Brave: Blocked.AdGuard: Blocked.VPN / DNS: Gets through.Safari ITP: 7-day cookie.Stopped by 3 of 5 blockers
  • TikTok Pixelanalytics.tiktok.comuBlock Origin: Blocked.AdBlock: Gets through.Brave: Blocked.AdGuard: Blocked.VPN / DNS: Blocked.Safari ITP: 7-day cookie.Stopped by 4 of 5 blockers
  • Pinterest Tags.pinimg.comuBlock Origin: Blocked.AdBlock: Gets through.Brave: Blocked.AdGuard: Blocked.VPN / DNS: Gets through.Safari ITP: 7-day cookie.Stopped by 3 of 5 blockers
  • Blocked
  • Partly blocked
  • 7-day cookie
  • Gets through

Real browsers, default settings unless stated. Tested on 30 September 2026. Partly blocked: the conversion gets through, the view-through request is blocked. How we tested · How Product Metrics: Full Signal Server-side Tracking works

What missed conversions cost you, per month

ROAS+17.6%
4.255
POAS+17.6%
1.72

Google Ads sees → With Product Metrics: Full Signal Server-side Tracking

+17.6% ROAS and POAS once every conversion reaches Google Ads: 88 orders and €7,500 a month that Smart Bidding now doesn’t see.

Estimate. Assumes missed orders have the same average order value as the ones Google Ads sees.

What do blocked tags cost you?+17.6% ROAS and POASCalculate your impact

How we tested

Real browsers, real blockers. Nothing simulated.

Real browsers

Brave and Chrome with each blocker installed, loading every tag the way a shop does, from a public page.

Blocked or through

A tag counts as blocked when the browser stops it or the blocker swaps it for an empty stand-in. Any answer from the tag’s server means it got through.

On your own domain

The Product Metrics: Full Signal Server-side Tracking request goes to a unique first-party path, the way it runs on your shop. It got through in every run.

Your own browser

Pick Your browser to send the same requests live, without cookies. The result stays on your screen.

Setups tested

  • uBlock Origin: uBlock Origin Lite 2026.930.1227 in Brave and Chrome, default settings.
  • AdBlock: AdBlock 6.47.0 in Brave and Chrome, default settings (Acceptable Ads on).
  • Brave: Brave 1.96 Shields, standard mode.
  • AdGuard: AdGuard 5.5.2.3 in Brave and Chrome with Tracking Protection on (off by default in the browser extension).
  • VPN / DNS: AdGuard DNS, the kind of hostname blocking VPNs and DNS blockers use.
  • Safari ITP: Safari Intelligent Tracking Prevention: tags load, their cookies expire after 7 days.

Questions about blocked tracking. Anything else? Ask Berend.

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Why do ad blockers block conversion tracking?

Ad blockers use filter lists of known ad and tracking hosts. Google Ads, Google Analytics and most tracking tools load from those hosts, so the request is stopped in the browser and the order never reaches Google Ads.

Which ad blockers block Google Ads conversion tracking?

In our tests, uBlock Origin, Brave and AdGuard with Tracking Protection block the Google Ads tag and its conversion hit. AdBlock lets both through by default, and a DNS blocker stops only the view-through request.

Does uBlock Origin block Google Ads and GA4 tracking?

Yes. In our test, uBlock Origin blocked all 10 standard tags, Google Ads conversions and GA4 included. Setup: uBlock Origin Lite 2026.930.1227 in Brave and Chrome, default settings. Product Metrics: Full Signal Server-side Tracking got through.

Does AdBlock block Google Ads and GA4 tracking?

In our test, AdBlock blocked 1 of 10 standard tags: Meta Pixel. Google Tag Manager, Google Analytics 4, Google Ads tag, Google Ads conversion, ProfitMetrics, TrackBee, Microsoft Advertising UET, TikTok Pixel and Pinterest Tag got through. Setup: AdBlock 6.47.0 in Brave and Chrome, default settings (Acceptable Ads on). Product Metrics: Full Signal Server-side Tracking got through.

Does Brave block Google Ads and GA4 tracking?

Yes. In our test, Brave blocked all 10 standard tags, Google Ads conversions and GA4 included. Setup: Brave 1.96 Shields, standard mode. Product Metrics: Full Signal Server-side Tracking got through.

Does AdGuard block Google Ads and GA4 tracking?

In our test, AdGuard blocked 8 of 10 standard tags: Google Tag Manager, Google Analytics 4, Google Ads tag, Google Ads conversion, Meta Pixel, Microsoft Advertising UET, TikTok Pixel and Pinterest Tag. ProfitMetrics and TrackBee got through. Setup: AdGuard 5.5.2.3 in Brave and Chrome with Tracking Protection on (off by default in the browser extension). Product Metrics: Full Signal Server-side Tracking got through.

Do VPNs and DNS blockers block conversion tracking?

In our test, AdGuard DNS blocked 3 of 10 standard tags: Google Analytics 4, ProfitMetrics and TikTok Pixel. It partly blocked the Google Ads conversion: the conversion got through, the view-through request didn’t. Google Tag Manager, Google Ads tag, TrackBee, Meta Pixel, Microsoft Advertising UET and Pinterest Tag got through. Setup: AdGuard DNS, the kind of hostname blocking VPNs and DNS blockers use. Product Metrics: Full Signal Server-side Tracking got through.

Do ad blockers block Google Analytics 4?

In our test, uBlock Origin, Brave, AdGuard and VPN / DNS blocked Google Analytics 4. AdBlock let it through. Safari ITP lets GA4 load but cuts its cookies to 7 days. Product Metrics: Full Signal Server-side Tracking got through every blocker.

Does Safari ITP block conversion tracking?

Yes, through cookies. Safari’s Intelligent Tracking Prevention lets the tags load, but the cookies they set expire after 7 days, so a purchase a week after the click loses its ad. Product Metrics: Full Signal Server-side Tracking sets its cookie from your own domain and keeps it 30 days.

Does server-side tracking get past ad blockers?

Not by itself. Server-side tracking moves the work to a server, but the browser still has to send the visitor’s data to it, and a blocker stops that request when it goes to a known tracking host or a recognisable script path. An endpoint on a unique path on your own domain gives filter lists nothing to match, which is why Product Metrics: Full Signal Server-side Tracking got through in every run.

Why does Product Metrics: Full Signal Server-side Tracking get through?

It runs on a unique endpoint on your own domain, so there is no tracking host for a list to match. If that endpoint is ever blocked, it auto-rotates to a fresh one.

Does getting past ad blockers get around consent?

No. Product Metrics: Full Signal Server-side Tracking reads the visitor’s consent choice before sending anything. Declined consent stays declined.

How do I check how many conversions ad blockers cost my shop?

Compare the orders in your shop admin with the conversions Google Ads reports for the same period, and read the gap as an upper bound: declined consent and attribution rules widen it too. Ad blockers are one cause, and their share depends on your audience and devices. Put your own share in the calculator to see what it does to ROAS and POAS.

Where does the 15% come from?

It’s a starting assumption, not a measurement of your shop. The real share depends on your audience and their devices, so set your own and watch ROAS and POAS change.

Every click, every conversion, back in Google Ads.

Start with a free analysis of your products, then add Product Metrics: Full Signal Server-side Tracking.

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