Must visitors consent before OptinMonster loads?

Yes. OptinMonster is a marketing tool that tracks mouse position, scroll depth, exit intent, and time on page immediately upon load. It sets visitor identification cookies and captures email addresses for lead generation. Consent is required before the script may run.

What cookies does OptinMonster set?

OptinMonster sets cookies prefixed with om- for campaign display suppression and conversion tracking. These cookies identify returning visitors, enforce frequency caps to prevent repeated popup displays, and record which campaigns a visitor has seen, submitted, or dismissed.

How does ConsentStack handle OptinMonster on my site?

ConsentStack blocks OptinMonster until marketing consent is granted. Behavioral monitoring and popup rendering are prevented until the visitor opts in. Once consent is recorded, ConsentStack releases OptinMonster so lead capture campaigns and A/B tests can operate normally.

What tracker domains does OptinMonster use?

ConsentStack has catalogued tracker domains for OptinMonster including optinmonster.com. These are the network destinations OptinMonster's scripts contact, which a consent platform blocks until a visitor agrees.

OptinMonster - Lead Popups & Tracking Consent Profile

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Overview

OptinMonster is a lead generation and conversion optimization platform that specializes in on-site popup forms and targeted offers. The platform provides a visual campaign builder for creating exit-intent popups, floating bars, scroll-triggered boxes, and fullscreen welcome mats. OptinMonster uses behavioral targeting rules to determine when and to whom campaigns are displayed, with the goal of converting website visitors into email subscribers or customers.

What This Script Does

OptinMonster's JavaScript SDK (loaded from a.optmnstr.com or api.opmnstr.com) performs the following:

Monitors visitor behavior in real-time: mouse position and velocity (for exit-intent detection), scroll depth, time on page, and page view count
Evaluates campaign display rules including page-level targeting, referrer source, device type, geographic location, and visitor engagement thresholds
Renders campaign creatives (popups, floating bars, inline forms, slide-ins, fullscreen overlays) by injecting HTML, CSS, and form elements into the page DOM
Sets cookies to track campaign interactions, enforce frequency capping (preventing the same popup from showing repeatedly), and identify returning visitors
Common cookies include om-{campaign_id} for display suppression and om-success-{id} for conversion tracking
Collects email addresses and form data submitted through opt-in forms, transmitting them to OptinMonster's servers and/or integrated email service providers
Reports campaign analytics (impressions, interactions, conversions, close events) to OptinMonster's tracking endpoints
Supports A/B testing of campaign variants with traffic splitting and conversion tracking between variants
May integrate with Google Analytics, sending custom events for campaign interactions

Network requests are made to OptinMonster's API for campaign configuration retrieval, form submission processing, and analytics event collection. The script continuously monitors user behavior throughout the page session.

Consent & Compliance

OptinMonster is a marketing tool. Its behavioral monitoring (exit-intent tracking, scroll depth, mouse movement analysis), visitor identification cookies, and email capture functionality all serve lead generation and conversion marketing purposes. Under GDPR and the ePrivacy Directive, the cookies set by OptinMonster — including campaign display cookies and visitor identification — require prior consent as they are not strictly necessary for the website's core functionality.

Under CCPA, the behavioral data collected (mouse movements, scroll patterns, page views) and email addresses captured through forms constitute personal information. The transmission of this data to OptinMonster's third-party servers should be disclosed in the privacy policy.

The consent category for OptinMonster is marketing.

Should You Block This Without Consent?

Yes.

OptinMonster's entire purpose is marketing-oriented: it tracks visitor behavior to trigger lead capture popups and records conversion events. The behavioral monitoring begins immediately upon script load, and cookies are set to identify and track visitors across sessions. None of these functions are necessary for website operation. The script must be blocked until marketing consent is obtained.

Is OptinMonster GDPR compliant?

OptinMonster typically loads marketing trackers, which are not strictly necessary for your site to work. Under the GDPR and the ePrivacy Directive, non-essential cookies and trackers must stay blocked until a visitor gives clear opt-in consent. So OptinMonster can be fully GDPR compliant, but only if your site holds its scripts until consent is granted and lets visitors decline just as easily. Compliance depends on how your site loads OptinMonster, not on OptinMonster itself.

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