Adblock detector
The adblock detector script for your website
Add a detector that identifies visitors using an ad blocker on your site, measures your real ad-block rate in a live dashboard, and asks blocked visitors, politely, to allow ads. One async script tag, free to start.
What a good adblock detector has to do
Detect every blocker
One bait is not a detector. AntiAdBlock Core votes across 11 independent vectors, DOM baits, network baits, CSS probes and MV3 heuristics, so uBlock Origin, AdBlock Plus, AdGuard, Brave Shields and uBlock Origin Lite are all caught.
Measure, not guess
The detector feeds a live dashboard: your real ad-block rate, detections and recoveries per site and per day, plus the estimated revenue at stake based on your CPM.
Recover the visit
Detection alone earns nothing. A customizable overlay asks blocked visitors to allow ads, and the dashboard tracks exactly how many do.
Stay compliant
No cookies, no fingerprinting, no per-visitor data. Daily aggregates only, so the detector is GDPR/CCPA-safe without consent banners.
This is the detector, running live
The test below runs 3 of the engine's 11 vectors against your current browser, right now. This same detection runs on your site after a 60-second install.
Adblock detector FAQ
What is an adblock detector?
An adblock detector is a script a website adds to identify visitors who are blocking ads. Good detectors combine several independent detection vectors and vote on the result, then feed analytics and a recovery flow. AntiAdBlock Core bundles the detector, the dashboard and the recovery overlay in one script tag.
How do I add an adblock detector to my website?
Sign up free, verify your domain and paste one async script tag in your <head>. The whole install takes about 60 seconds and works on any CMS, WordPress and Blogger included.
Does it detect uBlock Origin and Chrome MV3 blockers?
Yes. The engine detects uBlock Origin (Basic, Optimal and Complete), uBlock Origin Lite on Chrome's Manifest V3, AdBlock, AdBlock Plus, AdGuard, Brave Shields and Ghostery, and is retrained nightly as filter lists change.
Is an adblock detector legal and GDPR-safe?
Detection itself is legal. AntiAdBlock Core is built to be GDPR/CCPA-safe: it sets no cookies, does no fingerprinting and stores no per-visitor data, only daily aggregate counts per site.
How much does an adblock detector cost?
AntiAdBlock Core's detector is free for 10,000 detections a month, with public paid plans from $5 to $29.99/month for higher volume. No revenue share and no traffic minimum.
Add the adblock detector to your site today
Measure your real ad-block rate this week and start recovering the revenue it costs you. Free to start, no credit card.
Get the detector free