Let visitors opt in or out of Optimize using TrustArc cookie preferences.
TrustArc is a service that helps companies manage privacy and data protection compliance. If your company uses TrustArc, you can modify the Optimize snippet to respect a visitor’s cookie preferences — either by blocking the snippet by default (opt-in) or loading it by default (opt-out).
Good to know
Optimize does not use cookies to apply variations.
How to implement
- Decide whether you want to use the opt-in or opt-out snippet version
- Replace all
123456789placeholders with your actual Optimize account ID - Add the snippet to every page on your website — use the default snippet install doc as a reference
Snippet with opt-out behavior
This version loads Optimize by default. If the visitor later opts out of functional cookies, the snippet will no longer run.
Steps:
- Find your account ID in your Optimize Account Settings
- Replace all
123456789instances in the code below with your actual account ID
<!-- Optimize opt-out snippet -->
<style>.anti-flicker, .anti-flicker * {visibility: hidden !important; opacity: 0 !important;}</style>
<script>(function(e,t,p){var n=document.documentElement,s={p:[],r:[]},u={p:s.p,r:s.r,push:function(e){s.p.push(e)},ready:function(e){s.r.push(e)}};e.intellimize=u,n.className+=" "+p,setTimeout(function(){n.className=n.className.replace(RegExp(" ?"+p),"")},t)})(window, 4000, 'anti-flicker')</script>
<link rel="preload" href="https://cdn.intellimize.co/snippet/123456789.js" as="script">
<link rel="preconnect" href="https://api.intellimize.co" crossorigin>
<link rel="preconnect" href="https://123456789.intellimizeio.com">
<link rel="preconnect" href="https://log.intellimize.co" crossorigin>
<script>
(function(){
function removeFlickerGuard() {
document.documentElement.className = document.documentElement.className.replace(RegExp(' ?anti-flicker'), '');
}
let hasOptedOut = false;
try {
const ta_gdpr_prefs = JSON.parse(localStorage.getItem('truste.cookie.notice_gdpr_prefs')).value;
// TrustArc levels: 0 = required, 1 = functional, 2 = advertising
const TA_FUNCTIONAL = 1;
// Check if "functional" preference is set
hasOptedOut = ta_gdpr_prefs.indexOf(TA_FUNCTIONAL) === -1;
} catch(xx) { /* TrustArc preferences not set */ }
// if user has opted out
if (hasOptedOut) {
// Remove page hiding
removeFlickerGuard();
return;
}
// Load Intellimize
const iS = document.createElement('script');
iS.type = 'text/javascript';
iS.async = true;
iS.src = 'https://cdn.intellimize.co/snippet/123456789.js';
iS.onerror = function() { removeFlickerGuard(); }
const s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(iS, s);
})();
</script>
<!-- Optimize end -->Snippet with opt-in behavior
This version blocks Optimize by default. The snippet only loads if the visitor explicitly opts in to functional cookies.
Steps:
- Find your account ID in your Optimize Account Settings
- Replace all
123456789instances in the code below with your actual account ID
<!-- Optimize opt-in snippet -->
<style>.anti-flicker, .anti-flicker * {visibility: hidden !important; opacity: 0 !important;}</style>
<script>(function(e,t,p){var n=document.documentElement,s={p:[],r:[]},u={p:s.p,r:s.r,push:function(e){s.p.push(e)},ready:function(e){s.r.push(e)}};e.intellimize=u,n.className+=" "+p,setTimeout(function(){n.className=n.className.replace(RegExp(" ?"+p),"")},t)})(window, 4000, 'anti-flicker')</script>
<link rel="preload" href="https://cdn.intellimize.co/snippet/123456789.js" as="script">
<link rel="preconnect" href="https://api.intellimize.co" crossorigin>
<link rel="preconnect" href="https://123456789.intellimizeio.com">
<link rel="preconnect" href="https://log.intellimize.co" crossorigin>
<script>
(function(){
function removeFlickerGuard() {
document.documentElement.className = document.documentElement.className.replace(RegExp(' ?anti-flicker'), '');
}
let hasOptedIn = false;
try {
const ta_gdpr_prefs = JSON.parse(localStorage.getItem('truste.cookie.notice_gdpr_prefs')).value;
// TrustArc levels: 0 = required, 1 = functional, 2 = advertising
const TA_FUNCTIONAL = 1;
// Check if "functional" preference is set
hasOptedIn = ta_gdpr_prefs.indexOf(TA_FUNCTIONAL) >= -1;
} catch(xx) { /* TrustArc preferences not set */ }
// if user has opted in
if (hasOptedIn) {
// Load Intellimize
const iS = document.createElement('script');
iS.type = 'text/javascript';
iS.async = true;
iS.src = 'https://cdn.intellimize.co/snippet/123456789.js';
iS.onerror = function() { removeFlickerGuard(); }
const s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(iS, s);
} else {
// Remove page hiding
removeFlickerGuard();
}
})();
</script>
<!-- Optimize end -->