The Global Disinformation Index (GDI) aims to disrupt, defund and down-rank disinformation sites. We collectively work with governments, business and civil society. We operate on three core principles of neutrality, independence and transparency.

Neutrality: The GDI is non-political and non-partisan. Our Advisory Panel consists of international experts in disinformation, indices and technology. Our Technical Advisory Group provides best practice guidance for designing disinformation risk ratings that are unbiased, neutral and trusted. A Governing Board will be established to oversee our operations and accountability. 

Independence: The GDI is a not-for-profit organisation based in the United Kingdom. Our funding comes from a range of sources including governments, philanthropies, and companies. No single funding source is to make up more than 33% of our total funding base. 

Transparency: Our research methodologies and findings are in the public domain to review, debate and discuss. Our index methodology and process for selecting sites to review are published. All of our funding sources are made public. Our list of funders will be continually updated online.


Our mission is to catalyse change within the tech industry to disrupt the incentives to create and disseminate disinformation online.

  • We are working to provide disinformation risk ratings of the world’s media sites. 
  • We offer bespoke automated solutions to identify adversarial narrative topics and high risk domains for the ad tech industry, drawing on one of the most comprehensive disinformation data platforms in the world.
  • We leverage data science and intelligence to track emerging narratives, campaigns, and threats.  
  • We provide policy advice and guidance to key global efforts and institutions to combat disinformation, including the Christchurch Call, Global Internet Forum to Counter Terrorism (GIFCT), and the Global Alliance for Responsible Media (GARM).


Our virtual team is made up of 15 experts from around the world, from Berlin to San Francisco. We are data scientists, data analysts, intelligence analysts, and researchers from a mix of backgrounds, including media, journalism, cybersecurity and adtech.

Please feel welcome to contact us: email: / Twitter @disinfoindex


Alexandra Mousavizadeh

Alexandra has 20 years’ experience in index construction and data analysis. She currently is the head of insights at Tortoise Media. Previously, she oversaw the Legatum Institute’s flagship publication. Prior roles include CEO of Arc Ratings, a global emerging markets based ratings agency; Sovereign Analyst for Moody’s and head of Country Risk Management, Morgan Stanley.

Clare Melford

Clare is an experienced CEO in the commercial and not for profit sectors. She is an expert in building and managing cross-sector coalitions. Clare was formerly CEO of the International Business Leaders Forum and MD of MTV Networks, Nordics. She has worked on start ups in e-commerce, fin-tech and ed-tech. Clare is a founding board member of Girls not Brides, the global coalition to end child marriage.

Dr. Daniel Rogers

Danny is a physicist, an author, and an expert in cryptography, cybercrime, disinformation, and security. He is a co-founder of Terbium Labs. Previously, Danny managed a portfolio of physics and sensor research projects at the Johns Hopkins University Applied Physics Laboratory. He currently teaches in the Cybercrime and Global Security Masters Program at New York University’s Center for Global Affairs and is a Security Fellow at the Truman Project on National Security.

Advisory Panel

Anne Applebaum

Professor in Practice and
Co-Director of Arena, LSE

Peter Pomerantsev

Co-Director of Arena, LSE

Miguel Martinez

Co-Founder and Chief Data Scientist, Signal Media

Technical Advisory Group

Hany Farid

UC – Berkeley

Nic Newman

Reuters Institute of Journalism

Camille Francois


Ben Nimmo

Graphika/Atlantic Council

Scott Hale

OII/ Meedan

Franziska Roesner

University of Washington

Finn Heinrich

Open Society

Olaf Steenfadt

RSF/Journalism Trust Initiative

Miguel Martinez

Signal AI

Cris Tardáguila

Poynter Institute / International Fact Checking Network

Amy Mitchell

Pew Research Center

David Taubenheim


Alexandra Mousavizadeh

Tortoise Media

Laura Zommer


Supported By

Past donor
Past donor
Past donor
Past donor


What is disinformation?

At the GDI, we look at disinformation through the lens of adversarial narratives that undermine trust in our social, political, economic and scientific institutions.

What is the difference between misinformation and disinformation?

Both terms refer to false or misleading information. But misinformation lacks the intent to deceive, whereas disinformation is deliberate deception, often malicious. 

How does GDI assess the risk of disinformation?

GDI risk ratings examine a range of neutral signals to flag the disinformation risk of a news domain. These signals include metadata and other observable factors. This rating is assessed using both artificial intelligence and human review. These processes are used to classify and rate the domains into different “at-risk” groups. For more details, please see our methodology paper.

How will the GDI risk ratings be used?

The ad tech industry, including advertisers, ad exchanges and platforms, can use these ratings to ensure ads for brands don’t appear on websites whose risk profile does not match their ad criteria. Ad exchanges will have real-time information on high-risk domains before placing ads on them. Social platforms and search engines will have a neutral assessment to make high-risk domains less visible on their platforms.

Who funds the GDI?

Our funding comes from a range of governmental, philanthropic and commercial sources. No single funding source is to make up more than 33% of the total funding base. Our current funders are listed on this page and will be constantly updated.


We’re Hiring

Chief Policy, External Relations and Communications Officer

GDI is seeking a senior policy expert to set the strategy for GDI’s policy engagement around the world.

Software Engineer

GDI is seeking applicants for a Software Engineer to join our Technical Team.

Applications accepted on a rolling basis. 

Data Scientist

GDI is seeking experienced applicants for a Data Scientist to join our team.

Applications encouraged to be submitted by 24 September. 


If you’re interested in future opportunities, please send us your resume and we’ll let you know when positions open up:


GDI welcomes all questions and queries. You can use the following emails based on your type of inquiry:

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