Prior-script blocking
Block trackers before consent, not after.
Recording a choice is easy; preventing a tracker from running before that choice is the part most platforms skip. Prior-script blocking is the control that turns a banner into actual compliance, and it is the single biggest driver of cookie-consent enforcement actions.
Third-party tags stay inert behind the consent gate until the matching category is allowed.
The problem
The dirty secret of cookie banners is that most of them record a choice while the trackers already fired on page load. Recording consent without blocking is the gap regulators fine you for.
With ConsentX
Nothing non-essential runs until the visitor says yes. If they say no, ConsentX sweeps the cookies that tried to set. That is the difference between looking compliant and being compliant.
How it works
Tag or auto-detect scripts
Mark scripts with data-cx-consent, or let ConsentX auto-block untagged third-party tags.
Nothing runs before a choice
Blocked tags stay inert until the matching category is allowed.
Sweep on reject
If a category is rejected, ConsentX aggressively clears cookies it tried to set.
A closer look
True prior consent, not after-the-fact logging
ConsentX gates scripts two ways: tag a script with data-cx-consent for precise per-category control, or let the engine auto-block untagged third-party tags it does not recognize. Either way nothing non-essential executes on first load.
This closes the gap a regulator cookie scan exposes, where analytics and ad pixels fire on page load while the banner is still asking. With ConsentX a fresh scan of your site shows zero non-essential tags before consent.
Reject means nothing persists
When a visitor rejects a category, ConsentX aggressively sweeps the cookies and storage that category tried to set, so a no is enforced rather than merely noted. A maintained tracker registry keeps the blocking and sweeping current as vendors change.
The widget is built to fail open: if ConsentX is ever unreachable, your site keeps working, while the blocking logic still defaults to safe behavior for untagged trackers.
Capabilities
What you get
- True prior consent, no first-load leaks
- Auto-block untagged third-party scripts
- Cookie sweeping when a category is rejected
- Works with GTM and direct tags
Where teams use it
- A site that failed a regulator cookie scan for pre-consent tags
- A team migrating off a banner that only records consent
- An agency standardizing real blocking across client sites
Helps you meet
Scan your site for leaksBuilt for enterprise
Passes regulator and vendor cookie scans for prior consent
Connection-checker flags installs where tags load before ConsentX
Allowlist for essential infrastructure you must never block
Consistent enforcement across every site in the organization
Try Prior-script blocking free
Install in minutes. Free plan, no credit card.
Frequently asked questions
Why is blocking different from recording consent?+
Recording writes a row, blocking actually prevents the tracker from running before consent. Regulators care about the second one.
Do I have to tag every script?+
No. You can tag scripts with data-cx-consent for precise control, or rely on auto-blocking of untagged third-party tags.
What happens to cookies if someone rejects?+
ConsentX sweeps cookies the rejected category tried to set, so a no really means nothing persists.