Didomi vs OneTrust

Why Switch from OneTrust to Didomi?

OneTrust is the dominant US-headquartered privacy and consent management platform, with a broad product suite covering privacy, GRC, ethics, and ESG. For European publishers, brands, and businesses, the trade-offs are familiar: OneTrust is US-jurisdiction (Atlanta-headquartered), consent records flow through US infrastructure, and the platform breadth often exceeds focused-consent-management needs.

Didomi is the French alternative. Paris-headquartered, fully EU jurisdiction, IAB TCF-certified at the highest compliance level, with deep expertise in European consent-management patterns. Used by Le Figaro, France TV, RTL, and major European publishers and brands.

Feature Comparison

Feature	Didomi	OneTrust
Jurisdiction	France 🇫🇷	United States 🇺🇸
Data location	EU only	US default + EU on tiers
GDPR	✅ Native	⚠️ Provider claims
CLOUD Act exposure	❌ None	⚠️ Yes
IAB TCF certified	✅ Highest level	✅
Consent management	✅ Best-in-class focus	✅
Preference Management Center	✅ Native	✅
GRC/ESG modules	Limited	✅ Best-in-class breadth
Native multilingual UI	✅ FR/EN/DE/ES/IT and more	✅
Pricing entry	€299/month	$99/month (Starter)

For European consent-management focus, Didomi is structurally aligned. For broader US-style enterprise privacy + GRC + ESG platform, OneTrust still wins.

Pricing

Didomi pricing:

• Free: limited features for small websites
• Pro: from €299/month — IAB TCF, multilingual, advanced features
• Enterprise: custom — multi-brand, advanced workflows, dedicated support

OneTrust for comparison:

• Starter: $99/month — basic cookie consent
• Pro: $499/month
• Enterprise: custom (typically $30K+/year)

For European publishers and brands operating at meaningful traffic levels, Didomi Pro at €299/month vs OneTrust Pro at $499/month is materially cheaper with stronger EU jurisdiction positioning.

Privacy & Data Sovereignty

Didomi’s structural advantages:

• French corporate jurisdiction — Didomi SAS subject to French and EU law
• EU data centres for all consent records and user data
• GDPR-native with comprehensive Article 28 DPA
• CNIL-aligned for French regulator expectations
• No US legal exposure for consent records (which contain GDPR-relevant personal data)
• NIS2-aligned practices

For European publishers handling millions of consent decisions daily — and brands collecting consent for marketing, profiling, and data-sharing purposes — EU jurisdiction at the consent-management layer is materially relevant.

Migration Guide

Moving from OneTrust to Didomi typically takes 4-8 weeks for substantial deployments:

1. Didomi contracting and onboarding (1 week)
2. Audit current OneTrust configuration — cookie inventory, vendor list, banner copy (1 week)
3. Configure Didomi consent policy with equivalent inventory and CMP behaviour (1 week)
4. Export and import historical consent records (1 week)
5. Deploy Didomi banner replacing OneTrust (1 week)
6. Validate consent signal flow through ad-tech supply chain (1-2 weeks)
7. Migrate preference-management workflows (1 week)
8. Decommission OneTrust (administrative)

Estimated total time: 4-8 weeks for moderate publishers; longer for complex multi-brand enterprises. Difficulty: Moderate-high; consent management has substantial ad-tech integration complexity.

Real-World Use Cases

Le Figaro uses Didomi for consent management across their entire publishing network. The combination of IAB TCF certification, multilingual support, and French jurisdiction matched their CNIL compliance and ad-tech supply chain requirements.

A pan-European e-commerce brand uses Didomi Pro across 8 country-specific websites. Native multilingual support handled localised cookie banners; the EU data residency simplified their multi-Member-State GDPR documentation.

A German Mittelstand company uses Didomi for consent management on their corporate website. German-language support and German DPA-aligned operation matched their internal data-protection-officer requirements.

Company Background

Didomi SAS was founded in 2017 in Paris by Romain Gauthier, Jawad Stouli, and Raphaël Boukris. The company emerged from observation that European consent management was poorly served by US-built platforms designed primarily around CCPA and US ad-tech patterns. Didomi built consent management explicitly around GDPR + IAB TCF + European publisher operational needs.

By 2026, Didomi serves thousands of European publishers and brands including major media properties (Le Figaro, France TV, RTL, Le Monde groups) and substantial e-commerce and SaaS customers. The company has raised significant venture funding while maintaining French operational base and EU jurisdiction throughout.

Security & Compliance

• ISO 27001 certified
• SOC 2 Type II audited
• GDPR-native with comprehensive Article 28 DPA
• CNIL-aligned for French regulator expectations
• IAB TCF certified at highest compliance level
• EU data centres for all customer data
• TLS 1.3 for all data in transit
• AES-256 for data at rest
• NIS2-aligned practices

Integration Ecosystem

• Ad-tech: IAB TCF v2.2 native, Google CMP partner, Microsoft Advertising integration
• Tag managers: Google Tag Manager, Tealium, Adobe Launch
• CMS: WordPress, Drupal, Adobe Experience Manager, custom CMS
• CDPs: Segment, mParticle, Tealium AudienceStream
• Analytics: native consent signalling to Google Analytics, Plausible, Matomo, others
• API: comprehensive REST API
• Webhook callbacks for consent events

Who Should Switch?

Didomi is ideal for:

• European publishers managing IAB TCF consent infrastructure
• Brands operating in multiple European markets with multilingual consent requirements
• Mid-market and enterprise organisations with EU jurisdiction procurement preferences
• CNIL-aware French businesses wanting native regulator alignment
• CMP-focused use cases (where OneTrust’s broader GRC/ESG breadth isn’t needed)

The Bottom Line

OneTrust remains the right choice for organisations using its full privacy + GRC + ESG enterprise platform breadth. For European publishers, brands, and businesses focused specifically on best-in-class consent management with EU jurisdiction, Didomi is the better choice: French corporate base, EU data infrastructure, IAB TCF certification at highest level, and proven adoption across major European media and brand customers.

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Looking for more European privacy and compliance alternatives? See also: Plausible vs Google Analytics and SoSafe vs KnowBe4.

Frequently Asked Questions

How does Didomi compare to OneTrust?

Both are full-featured consent management platforms. OneTrust is the larger US-headquartered platform with broader product suite (privacy + GRC + ethics + ESG). Didomi is focused on consent management specifically, with deeper European market expertise and EU jurisdiction. For European publishers, brands, and businesses prioritising GDPR-native consent management with EU sovereignty, Didomi is typically the better structural fit.

What's IAB TCF certification?

The Interactive Advertising Bureau Transparency and Consent Framework (IAB TCF) is the standardised technical specification for handling user consent in programmatic advertising. Didomi is certified at the highest TCF compliance level — meaning its consent signals are recognised by the entire programmatic-advertising ecosystem. For publishers and advertisers, this is essential infrastructure that ensures consent decisions actually flow through the ad-tech supply chain.

Is data hosted in the EU?

Yes. Didomi hosts customer consent data, preference records, and user identifiers in EU data centres. Didomi SAS is a French company subject to French and EU law. No US legal exposure for consent records — which is operationally important because consent records contain personal data covered by GDPR.

What's the Preference Management Center?

Beyond cookie consent, Didomi's Preference Management Center handles broader user preference management — marketing communications, data-processing purposes, third-party sharing preferences. This unified preference layer simplifies the GDPR data-subject-rights workflow significantly versus managing consent and preferences in separate systems.

Can I migrate from OneTrust?

Yes. Standard process: 1) Export OneTrust consent records and configurations, 2) Configure Didomi with equivalent preference/consent policies, 3) Bulk-import historical consent records (formats are compatible), 4) Deploy Didomi consent banner replacing OneTrust, 5) Validate consent flow through ad-tech supply chain, 6) Decommission OneTrust. Plan for 4-8 weeks for substantial publisher or enterprise deployments.