Some ad blockers misclassify Invoca’s first-party cookie as third-party and block it, and there’s no way for Invoca to prevent this in advance.Ad blockers combat intrusive ads in two main ways: blocking communication to ad servers, and removing specific ad elements from the page. If an ad blocker’s pre-built filters mistakenly identify Invoca’s domain as an ad or tracking server, it will consistently block the Tag’s connections, which can interfere with Invoca’s functionality. Invoca can’t control how independent third parties classify its cookies. Invoca uses a first-party tracking cookie, which is subject to different rules than third-party tracking cookies — but some ad blockers may still misclassify it as third-party, causing disruptions. As the number of ad blockers grows, it becomes harder for any vendor, including Invoca, to maintain an up-to-date list of every ad blocker that might misclassify its cookies. Since this classification can change unexpectedly and is controlled by the ad blocker, not Invoca, there’s limited ability to prevent it in advance. Applies to: Situations where an ad blocker prevents the Invoca Tag from running or capturing dynamic marketing data attribution.
Implementation & The Invoca Tag
What Happens to the Invoca Tag When an Ad Blocker Is On?
Last modified on September 21, 2026
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