Whatever shows your cookie banner — CookieYes, OneTrust, Cookiebot, Osano, Termly, Iubenda, TrustArc, Usercentrics — RegSentry is the independent check that it's actually blocking trackers before consent.
A consent platform manages consent: the banner, the categories, the records. RegSentry verifies enforcement: a real headless browser loads your site, makes no consent interaction, and records exactly which third-party scripts contact their servers anyway. The two jobs are complementary — and the second one is the check almost nobody runs.
It matters because banners fail quietly. In our 2026 scan of 1,478 small-business websites, 58% fired at least one tracker before the visitor consented — and nearly every affected site already had some consent setup in place. The usual causes aren't broken CMPs; they're tags added outside the CMP, hardcoded pixels, tag-manager triggers that ignore consent state, blocking left unenabled, and mis-categorized scripts.
Verify your consent setup — free real-browser scan, 30 seconds.
Real browser scan, no signup to run it. You see a summary of the findings; the full report with every tracker unlocks with your email.
Pick your CMP for the specific ways its setups leak — and how to check yours:
The scan doesn't need to know which CMP you run. It watches the network before any consent interaction, so it verifies any banner — including custom-built ones. Run it above and see what fires.