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Dianomi is a native advertising marketplace for financial services, technology and corporate brands that serves native ad units on premium publisher pages and relies on cookies and pixels for measurement and targeting.
Dianomi is a native advertising marketplace that connects financial services, technology and corporate brands with premium business and finance publishers. It serves native ad units across the web, in apps, on Apple News, in email and on AMP pages, and it uses cookies, pixels and clear gifs to measure performance and, in some cases, to tailor recommendations to a visitor.
Dianomi operates a native advertising marketplace with offices in London, New York and Sydney. It places sponsored content units on the pages of leading publishers so that advertisers can reach a financially engaged audience at scale. Most of its targeting is contextual, meaning ads are matched to the subject of the page rather than to an individual, but the platform also supports personalised recommendations and works with third parties that may set cookies, pixels and clear gifs to measure and target advertising.
When a Dianomi unit loads, the platform and its partners may read and write cookies, fire tracking pixels and use clear gifs to record impressions, clicks and conversions. Data processed can include device and browser identifiers, IP address, the page being viewed, and inferred interests used to personalise content recommendations. For visitors who opt out, Dianomi stores an opt out cookie and limits processing to contextual recommendations based on the page rather than on browsing history.
Because Dianomi reads and writes information on a user device and can build interest profiles, it falls within both the ePrivacy Directive and the GDPR. Advertising cookies and pixels are not strictly necessary, so storing or accessing them requires prior consent under the ePrivacy rules, and any personalised targeting needs a valid GDPR lawful basis. As an advertising and audience platform that may share data with partners across borders, Dianomi is considered high risk and warrants careful governance by the publishers that embed it.
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The appropriate lawful basis for advertising cookies and personalised recommendations is consent under Article 6(1)(a) of the GDPR, combined with the consent obligation in the ePrivacy Directive. Publishers should ensure that Dianomi advertising tags only fire after the visitor has given freely given, specific, informed and unambiguous consent through a consent management platform, and that this signal is passed to Dianomi. The contextual cookieless mode can be offered to visitors who decline advertising cookies, while the opt out cookie should be respected whenever it is present.
Dianomi is headquartered in the United Kingdom, which operates an adequacy based framework, but it also runs operations in New York and Sydney and works with advertising partners in the United States and other regions. Personal data may therefore leave the European Economic Area and the United Kingdom, in which case transfers should be covered by Standard Contractual Clauses, the United Kingdom International Data Transfer Addendum and a transfer risk assessment where required.
To deploy Dianomi compliantly, block its advertising tags until consent is captured, document the service in your records of processing and your cookie policy, and disclose the cookies, pixels and partners involved. Configure the contextual cookieless option as a fallback, honour the opt out cookie and consumer choice tools, and keep transfer safeguards in place. Reviewing these controls through a Data Protection Impact Assessment helps demonstrate accountability for a high risk advertising integration.
Websites using Dianomi must obtain user consent under GDPR regulations.
DPIA considerations
Dianomi is an advertising and audience platform that places third party cookies and pixels and may build interest profiles for personalised recommendations, so it is treated as high risk under the GDPR and ePrivacy Directive. A Data Protection Impact Assessment should review the lawful basis for advertising tracking, the international transfer of data to the United States and Australia, and the effectiveness of the contextual cookieless option. Publishers should also document how the opt out cookie and consent signals are honoured.
Sample consent text
We use Dianomi to show you relevant native advertising and to measure its performance using cookies and similar technologies; these are only set if you accept advertising cookies.
Third-party domains contacted
dianomi.comwww.dianomi.comassets.dianomi.comCookies placed
| Name | Type | Duration | Purpose |
|---|---|---|---|
| dianomi_session | Advertising | Session | Identifies the browser session so that Dianomi can deliver and frequency cap native advertising units across a visit. |
| dianomi_uid | Advertising | 13 months | Stores a pseudonymous identifier used to attribute clicks and conversions and, where consent is given, to personalise content recommendations. |
| dianomi_measure | Measurement | 13 months | Records impressions and click data so that advertisers and publishers can measure the performance of native advertising campaigns. |
| dianomi_optout | Opt out | 24 months | Records that the visitor has opted out of behavioural targeting so that Dianomi serves only contextual recommendations. |
Dianomi places tracking cookies for advertising — comply with GDPR using FlowConsent.
Dianomi and its advertising partners may set cookies, fire tracking pixels and use clear gifs to deliver native ads, measure impressions and clicks, and in some cases personalise recommendations. It also sets an opt out cookie to record when a visitor has chosen not to be tracked. Most of these are advertising and measurement technologies rather than strictly necessary ones.
Yes. Because Dianomi reads and writes non essential cookies and pixels on the user device, the ePrivacy Directive requires prior consent before its tags load, and any personalised targeting also needs a GDPR lawful basis. You should only fire Dianomi tags after a visitor accepts advertising cookies through your consent management platform. Visitors who decline can be served the contextual cookieless option instead.
The appropriate legal basis for advertising cookies and personalised recommendations is consent under Article 6(1)(a) of the GDPR, alongside the consent obligation in the ePrivacy Directive. Consent must be freely given, specific, informed and unambiguous, and visitors must be able to withdraw it as easily as they gave it. Strictly necessary processing is not involved, so legitimate interests is not an appropriate basis for the advertising tracking.
It can. Dianomi is based in the United Kingdom but runs operations in New York and Sydney and works with advertising partners in the United States and other regions, so personal data may be transferred internationally. Such transfers should be covered by Standard Contractual Clauses, the United Kingdom International Data Transfer Addendum, and a transfer risk assessment where required. You should document these safeguards in your records of processing.
In most cases yes. Dianomi is an advertising and audience platform that can profile interests for personalised recommendations and shares data across borders, which makes it high risk under the GDPR. A Data Protection Impact Assessment should assess the lawful basis, the international transfers, and how the contextual cookieless mode and opt out cookie reduce risk. Completing one helps you demonstrate accountability before going live.
Block Dianomi advertising tags until the visitor has given consent, then pass that consent signal to the platform. Disclose the cookies, pixels and partners in your cookie policy and privacy notice, enable the contextual cookieless option as a fallback, and honour the opt out cookie and consumer choice tools. Keep international transfer safeguards in place and review the integration through a Data Protection Impact Assessment.
Alternatives include other native advertising and content recommendation networks, contextual advertising platforms that avoid third party cookies, and first party advertising sold directly by the publisher. Choosing a fully contextual or cookieless solution can reduce consent friction and compliance risk. Dianomi itself offers a contextual cookieless mode that can serve as a lower risk configuration for visitors who decline advertising cookies.
List Dianomi as an advertising and measurement service in your cookie policy, describe the cookies and pixels it uses, their purposes and durations, and name it among your third party recipients. Explain that these technologies only activate after consent and how visitors can withdraw consent or use the opt out cookie. Keep the policy aligned with your consent management platform and review it whenever the integration changes.