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The Next Generation of Brand Suitability
Enables digital advertising effectiveness while ensuring brand and social responsibility values are upheld in the world’s largest walled garden platforms

AI Technology Built for Walled Gardens
Zefr’s Patented AI was architected for complex walled gardens, scoring over 5 billion content types per day for brand suitability.

Full Content Transparency
We align with GARM / 4A’s industry standards for pre-flight targeting or post-campaign verification, with additional brand exclusions available.

Proven Effectiveness
Zefr eliminates ~30%+ of misaligned impressions from false positives and unsuitable content.
AI Technology for Brand Suitability in Walled Gardens
Unlike keyword-based open web tech, Zefr’s AI was trained for scaled platforms for more accuracy and transparency.
Latest
PODCAST: AdExchanger Talks | Down With Blocklists!
War In Israel Becomes New Test Of Social Media Safeguards Built For Brands
AdAge | October 2023
Engage your audience with Reels—Now with AI-powered brand suitability features | eMarketer
Zefr and Meta Announce Expanded AI-Powered Brand Suitability Solution, Now Available on Facebook & Instagram Reels
Exclusive: Meta unveils brand suitability controls for Reels
Marketing Brew | October 2023
Zefr Expands TikTok Product to Provide Advertisers With Suitability Exclusions, in Collaboration with TikTok’s Inventory Filter
Inflation, Fragmentation, Misinformation, Oh My!: General Mills' Modernized Media Plan
MediaPost | September 2023
The PMW 100 Powerlist 2023 | Emma Lacey, SVP EMEA
Marketers Beware: AI Will Accelerate Online Misinformation This Election Cycle
Rich Raddon | AdExchanger 2023
Zefr + Meta expand AI-powered Brand Suitability Measurement to the Instagram Feed, Additional Languages
Axios Expert Voices Roundtable Discussion in Cannes
Responsible AI: Combating Misinformation with Innovation | Axios June 2023
When It Comes To Brand Suitability, Not All Walled Gardens Are Created Equal
Rich Raddon | ANA June 2023
Expanding AI-Powered Suitability Controls & Third-Party Verification
Meta for Business Blog | Cannes 2023
Twitter Promises Brand Safety to Win Back Ad Dollars in Cannes
Ad Age | June 2023
Here are Safeguards Brands and Agencies are Tapping to Prevent or Mitigate AI Fraud | Digiday
Zefr Named to AdExchangers Top 50
2023 Programmatic
Power Players
Zefr Named to AdExchangers Top 50
2023 Programmatic
Power Players
Zefr Takes Stance Against Climate Misinformation by Joining Ad Net Zero and Partnering with Cedara to Accelerate Decarbonization in the Ad Industry
AI Has the Power to Both Perpetuate and Mitigate Our Misinformation Problem | The Drum
By Zefr's Chief Product & Chief Data Officer, Jon Morra
General Mills Fights AI Deepfakes on Tiktok, Facebook and Youtube
Zefr Brand Suitability Verification Now Available for Facebook Feed
Zefr Named to TikTok Marketing Partner Program
New Magna Research With Zefr Reveals 93% Of Consumers Are Exposed To Misinformation, And Expect Brands To Take Action
Zefr has appointed Ryan Barker to Chief Technology Officer
Zefr Launches Atrium
A New Measurement Product Suite Providing Advertisers with Fully Transparent Brand Safety and Suitability Measurement Across Walled Gardens
Zefr Makes Brand Safety, Suitability Reporting Generally Available to YouTube Advertisers
Zefr Acquires Israeli AI Firm Adverif.ai
Bolstering technology-led approach to identifying and defunding misinformation
Zefr Selected By Meta as First Partner for Feed Verification
Zefr Partners with TikTok to Provide Brand Safety and Brand Suitability Measurement to Advertisers, Aligned to GARM Industry Standards
As Global Video Investment Accelerates, Zefr Continues Growth With Exclusive Mitsui Partnership In Japan
What It Will Take To Foster A Responsible Media Ecosystem
Navigating a Safe Path Through Online Video, with Zefr’s Paola Ambrogio
Brand Suitability in Video Means Going Beyond the Basics
Zefr and Iris.TV are Partnering to Bring a More Nuanced Approach to Blocking or Allowing Streaming Content
Zefr Made Brand Safety Reporting Partner by YouTube, Announces Development of Independent Brand Safety & Suitability Measurement Product
Solving Brand Suitability: A New Study from Magna + Zefr

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