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Container Media Group is a programmatic advertising network that delivers ads via JavaScript tags and third party cookies for behavioural targeting and measurement.
Container Media Group is a programmatic advertising and audience monetisation platform that helps publishers and advertisers connect through real time bidding. It deploys JavaScript ad tags that load creatives, set cookies to identify users, and exchange bid signals with demand side platforms. As with any RTB platform, the technology relies on persistent identifiers and is subject to both the GDPR and the ePrivacy Directive across the European Union.
Container Media Group sets third party cookies that store a pseudonymous user identifier, frequency capping data, and audience membership flags. It also synchronises with partner DSPs through cookie matching pixels. Typical retention is between thirty days and thirteen months. None of these cookies are strictly necessary for the website to function, so prior consent is required.
The only valid legal basis is explicit consent under Article 6(1)(a) of the GDPR, combined with Article 5(3) of the ePrivacy Directive. Legitimate interest is not appropriate for behavioural advertising. You must obtain freely given, granular, informed consent before the tag is loaded and provide an equally easy way to withdraw it at any time.
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Bid data, IP addresses, and cookie identifiers may be transmitted to demand side platforms in the United States or other third countries. Transfers rely on Standard Contractual Clauses and the EU, US Data Privacy Framework where the recipient is certified. As a controller you must document recipients in your privacy notice.
Integrate a CMP that supports the IAB Europe TCF v2.2, pass the TC string to Container Media Group before any auction, respect Global Privacy Control signals and default to no consent when no string is available. Block all advertising tags until consent is captured.
Block the script until consent, declare every vendor in your cookie policy, keep an up to date record of consent for the cookie lifetime, refresh consent at least every thirteen months per CNIL guidance, and review the partner list each quarter. Sign a DPA with Container Media Group and confirm whether they are TCF registered.
Websites using Container Media Group must obtain user consent under GDPR regulations.
DPIA considerations
A DPIA is recommended because Container Media Group enables behavioural advertising and shares data with multiple demand side platforms, triggering Art. 35(3)(b) of the GDPR.
Sample consent text
We use Container Media Group to display advertising. With your consent, it may set cookies and share data with our advertising partners to deliver relevant ads.
Third-party domains contacted
containermediagroup.comcdn.containermediagroup.comsync.containermediagroup.combid.containermediagroup.comCookies placed
| Name | Type | Duration | Purpose |
|---|---|---|---|
| cmg_uid | third_party | 12 months | Pseudonymous user identifier for ad targeting |
| cmg_freq | third_party | 30 days | Frequency capping for advertising creatives |
| cmg_sync | third_party | 12 months | Cookie sync identifier shared with DSP partners |
| cmg_tcf | third_party | 13 months | Stores the TCF v2.2 consent string read before bidding |
| cmg_optout | third_party | 5 years | Opt out flag when user refuses advertising cookies |
Container Media Group places tracking cookies for advertising — comply with GDPR using FlowConsent.
Third party cookies for a pseudonymous user ID, frequency capping, and DSP synchronisation. Durations range from session up to thirteen months. Exact names vary by integration; review your network tab to enumerate them.
Yes. All cookies set by Container Media Group are non essential. Prior consent is required under Art. 5(3) ePrivacy and Art. 6(1)(a) GDPR before the script may be loaded.
Explicit consent under GDPR Art. 6(1)(a). Legitimate interest is not acceptable for behavioural advertising and real time bidding.
Yes. Bid data and identifiers may be sent to US based DSP partners. Transfers rely on SCCs and the EU, US Data Privacy Framework.
A DPIA is recommended for any large scale behavioural advertising tool, including Container Media Group, due to profiling at scale.
Pair it with a TCF v2.2 CMP, block the script until consent, pass the TC string on every request, document consent, and review partner lists quarterly.
Yes: contextual advertising (Seedtag, Adnami), direct deals without persistent IDs, or first party only retargeting solutions.
List every Container Media Group domain and cookie, indicate purpose and duration, and link to their privacy policy and TCF vendor entry where applicable.