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Home / IAB TCF v2-3

IAB TCF v2.3 Compliance

IAB TCF v2.3 is the updated Transparency & Consent Framework designed to improve how publishers, CMPs and advertising technology vendors communicate user consent and vendor disclosure signals across the digital advertising ecosystem. Okito helps websites prepare for IAB TCF v2.3-ready consent management with structured consent choices, vendor transparency and standardized TC String support.

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Sign Up for Okito

Create your Okito account with your email and website URL, choose the right plan, and access your consent management dashboard. During setup, you can configure your website’s cookie consent preferences and prepare your banner for IAB TCF v2.3-ready consent signaling.

Sign Up for Okito

Copy the Okito Banner Code

Once your setup is ready, your personalized Okito banner code will be available in the dashboard. Copy this code to activate cookie scanning, consent preference management and IAB TCF v2.3-ready signal support for your website.

Copy the Okito Banner Code

Paste the Code into Your Website

Paste the copied code into your website’s header or deploy it through a tag manager such as Google Tag Manager. Once integrated, Okito can start scanning cookies, managing consent preferences and supporting structured consent signals for a smoother user experience.

Paste the Code into Your Website

Configure IAB TCF v2.3-Ready Cookie Banner Templates

  • Enable IAB TCF v2.3-ready cookie banner templates through a guided setup.
  • Support structured consent management based on the latest IAB Transparency & Consent Framework requirements.
  • Present consent purposes, vendor information and privacy choices in a clearer format for users.
  • Customize the layout, colors and CSS to align the consent interface with your website’s branding.

User-Friendly and Transparent Consent Options

  • Build trust with users by offering a clear and transparent consent experience.
  • Allow users to accept, reject, update or withdraw their consent preferences at any time.
  • Provide a callback widget so users can return to their privacy settings whenever necessary.
  • Use geo-targeting to display region-specific consent templates based on the user’s location and applicable privacy requirements.

Seamless Vendor Integration and Management

  • Support IAB-registered vendors through the Global Vendor List and manage vendor transparency in a structured way.
  • Display the IAB Global Vendor List and eligible Google Ad Tech Providers to help users understand which vendors may process data.
  • Allow granular consent choices for vendors, purposes and data processing activities.
  • Support Google’s Additional Consent specification where required for eligible Google advertising partners outside the IAB Global Vendor List.
  • Help generate consent signals that support vendor disclosure, TC String accuracy and advertising ecosystem interoperability.

What is IAB Europe?

IAB Europe is the industry association representing the European digital advertising and marketing ecosystem. It brings together publishers, advertisers, agencies, technology providers and other stakeholders around common standards for transparency, privacy and responsible digital advertising.

One of IAB Europe’s most important initiatives is the Transparency & Consent Framework, known as IAB TCF. This framework provides a standardized way for publishers, Consent Management Platforms and advertising technology vendors to communicate user consent and transparency signals across the digital advertising supply chain.

IAB TCF does not replace GDPR, the ePrivacy Directive or local privacy laws. Instead, it helps organizations structure consent collection, vendor disclosure and consent signal transmission in a more consistent and interoperable way.

By supporting common technical standards, user transparency and accountability, IAB Europe contributes to a more privacy-conscious digital advertising environment.

What is IAB TCF v2.3?

IAB TCF v2.3 is the updated version of the IAB Europe Transparency & Consent Framework. It builds on IAB TCF v2.2 and focuses on improving the technical accuracy of vendor disclosure signals within the consent string.

The main change introduced with IAB TCF v2.3 is the mandatory use of the disclosedVendors segment in newly generated TC Strings. This segment indicates whether a specific vendor was actually disclosed to the user in the consent interface.

The main improvements introduced with IAB TCF v2.3 include:

  • Clearer vendor disclosure through the disclosedVendors segment.

  • More accurate TC String signaling for publishers, CMPs and advertising vendors.

  • Better support for vendor transparency across the Global Vendor List.

  • Reduced ambiguity around whether a vendor was shown to the user before data processing.

  • Stronger interoperability between CMPs, publishers and advertising technology platforms.

Through these updates, IAB TCF v2.3 strengthens transparency signaling across the digital advertising ecosystem and helps organizations prepare their consent management setup for the latest framework requirements.

Why Should You Implement IAB TCF v2.3?

Support Personalized Advertising

Implementing IAB TCF v2.3 helps publishers communicate consent and vendor disclosure signals in a format recognized across the digital advertising ecosystem.

For websites and apps serving ads in regulated markets, valid consent signaling is important for personalized advertising, vendor processing and advertising platform interoperability.

Without an up-to-date IAB TCF setup, websites may face limitations in personalized ad delivery, campaign eligibility and monetization performance.

Strengthen Consent Governance

IAB TCF v2.3 provides a standardized framework for collecting, storing and communicating user consent, transparency and vendor disclosure signals across the digital advertising supply chain.

It helps publishers, advertisers and ad tech vendors manage user choices more clearly while supporting operational alignment with GDPR, ePrivacy and market expectations.

By using IAB TCF v2.3, organizations can improve consent transparency, vendor-level control and audit-ready consent management.

Protect Advertising Revenue Stability

A properly implemented IAB TCF v2.3 setup helps ensure that consent signals are generated and transmitted correctly to advertising partners and demand platforms.

Clear consent management can increase advertiser confidence, support campaign eligibility and reduce the risk of disruption caused by outdated or incomplete consent signals.

For publishers operating in privacy-sensitive markets, IAB TCF v2.3 plays an important role in maintaining ad monetization continuity.
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FAQ

Frequently Asked Questions

IAB TCF v2.3 is the updated Transparency and Consent Framework developed by IAB Europe for standardized consent and vendor transparency signaling in digital advertising. It helps publishers, CMPs and technology vendors collect, store and communicate user consent choices through a structured TC String.

When a user visits a website or app, a CMP presents consent choices and records the user’s preferences. These choices are encoded into a TC String and shared with participating vendors. In IAB TCF v2.3, newly generated TC Strings also include the disclosedVendors segment for clearer vendor disclosure.

IAB TCF v2.3 is not a law by itself, but it is the required technical standard for participants in the IAB TCF ecosystem after the transition deadline. For publishers using major advertising platforms in regulated markets, supporting the latest TCF requirements is important for valid consent signaling.

IAB TCF v2.3 does not replace GDPR, ePrivacy or local privacy laws. It helps organizations structure consent collection, vendor disclosure, consent records and user preference management in a more standardized way.

The IAB Global Vendor List is the official registry of vendors participating in the IAB TCF framework. CMPs use the GVL to display vendor information and encode user consent preferences correctly within the TC String.

Google’s Additional Consent specification is used alongside IAB TCF for certain Google Ad Tech Providers that are not registered on the IAB Global Vendor List. It is not the same as Google Consent Mode v2.

GDPR is a legal regulation for personal data processing, while IAB TCF v2.3 is an industry framework for digital advertising consent signaling. GDPR defines legal obligations; IAB TCF v2.3 helps communicate consent, vendor and purpose information in a standardized technical format.

The main change is the mandatory disclosedVendors segment in newly generated TC Strings. This helps vendors understand whether they were actually disclosed to the user in the consent interface.

Organizations should use a CMP that supports the latest IAB TCF requirements, configure vendors and purposes correctly, generate valid TC Strings, and allow users to update or withdraw consent preferences at any time.