France Orders Internet Service Providers to Block Polymarket Amidst Growing Concerns Over Illegal Gambling and Market Integrity

France’s gambling regulator, the Autorité Nationale des Jeux (ANJ), has issued a directive compelling internet service providers (ISPs) across the country to block access to Polymarket, a prominent decentralized prediction market platform. This decisive action, taken last week and brought to wider attention by a CoinDesk report on July 18, 2026, stems from the ANJ’s classification of Polymarket and similar platforms as illegal gambling operations. The regulator’s move underscores escalating concerns about the proliferation of unregulated online wagering and the potential for manipulation within these burgeoning digital marketplaces.

The ANJ’s decision is rooted in a comprehensive investigation that identified significant risks associated with platforms like Polymarket. In its statement, the regulator articulated a core concern: "Because some of their addictive features are similar to those of regulated gambling offerings – but are amplified by the absence of the protective mechanisms found in the legal gambling market – the ANJ urged users to exercise caution." This highlights a critical distinction between regulated gambling, which is subject to stringent consumer protection measures, and the largely unfettered environment of many decentralized prediction markets. The ANJ’s emphasis on the "absence of protective mechanisms" points to a perceived deficiency in safeguards designed to prevent problem gambling, protect vulnerable individuals, and ensure fair play.

Further exacerbating the ANJ’s concerns were allegations of market manipulation. The regulator specifically cited instances where bets on weather outcomes appeared to be compromised, stating, "Some of the bets offered on this platform appeared to be rigged: for example, bets on the weather revealed that weather sensors may have been hacked." Such claims of potential rigging strike at the heart of market integrity and raise serious questions about the reliability and trustworthiness of prediction markets that are not subject to robust oversight. The ANJ’s investigation, launched in May 2026, also revealed a critical lack of Know Your Customer (KYC) protocols on Polymarket platforms accessible to French and European users. The absence of KYC procedures is a significant red flag for regulators, as it prevents the verification of user identities and ages, making it easier for underage individuals to participate and for illicit activities to occur undetected.

The ANJ’s decision to block Polymarket is not an isolated incident but rather a continuation of a broader regulatory effort to curb illegal online gambling. The regulator noted that previous attempts to restrict French users’ access to Polymarket had proven insufficient. Data from Similarweb, cited by the ANJ, indicated that Polymarket received 578,751 visits from 205,057 unique visitors in France during the previous month. This sustained engagement, despite a financial transaction prohibition implemented in 2024, highlights the ingenuity of users in circumventing restrictions, often through the use of Virtual Private Networks (VPNs). The ANJ’s current directive aims to implement a more definitive barrier by targeting the infrastructure that enables access.

Polymarket, a platform that allows users to bet on the outcomes of future events across a wide array of categories, including politics, finance, and sports, has seen substantial growth. However, its decentralized nature and reliance on blockchain technology, while offering benefits like transparency and immutability, also present regulatory challenges. The platform operates on smart contracts, often utilizing cryptocurrency for transactions, which can make it difficult for traditional financial regulators to track and control.

The ANJ’s crackdown on Polymarket aligns with a growing international trend of regulatory bodies scrutinizing and restricting access to prediction markets. The CoinDesk report revealed that France is not alone in its efforts. Last year, France blocked 1,290 gambling-related URLs. Globally, several other countries have already implemented restrictions on Polymarket, including Belgium, Germany, Greece, Italy, the Netherlands, Poland, Portugal, Romania, and Switzerland. This widespread regulatory action suggests a concerted international effort to address the perceived risks posed by these platforms.

A Timeline of Regulatory Action and Market Evolution

The ANJ’s recent directive is the culmination of evolving concerns regarding online gambling and the rise of prediction markets. The timeline leading up to this decision illustrates a growing awareness and response from regulatory bodies:

• Early 2020s: Prediction markets, including Polymarket, begin to gain traction, leveraging blockchain technology to offer novel ways to speculate on future events.
• 2024: France imposes a prohibition on financial transactions related to Polymarket, an attempt to curb its usage that proves largely ineffective due to circumvention methods like VPNs.
• May 2026: The ANJ initiates a formal investigation into Polymarket, focusing on its operational model, user engagement, and potential for illegal gambling and market manipulation.
• June 2026: During the ANJ’s investigation, concerning findings emerge regarding the platform’s lack of KYC controls and potential instances of market rigging, particularly in weather-related bets.
• July 18, 2026: CoinDesk publishes a report detailing the ANJ’s findings and the impending regulatory action.
• July 19, 2026: The ANJ issues its formal order to French ISPs, mandating the blocking of Polymarket.

This chronology highlights the ANJ’s proactive approach, moving from a transactional ban to a more comprehensive infrastructure-level block as concerns intensified.

The Broader Landscape of Prediction Markets

The regulatory action against Polymarket occurs at a time when prediction markets are experiencing significant growth and diversification. These platforms are no longer confined to traditional areas like political elections or sports outcomes. They are increasingly branching into more specialized domains, prompting both innovation and heightened regulatory scrutiny.

A notable example of this expansion is the recent collaboration between Polymarket rival Kalshi and AppliedXL, a public intelligence company. Announced last week, this partnership aims to enable trading on clinical trial outcomes and Food and Drug Administration (FDA) regulatory decisions. This move into the highly regulated pharmaceutical and healthcare sectors underscores the expanding ambition of prediction markets.

Kalshi CEO Tarek Mansour emphasized the potential benefits of such a platform in a news release: "Drug development is one of the most important and most information-constrained industries on earth. The data that determines which drugs advance and which don’t is largely locked away from the people who need it most. Surfacing information is what Kalshi is for, and we are committed to doing it right: compliance-first, carefully scoped and built for the long-term." This statement highlights a potential justification for prediction markets – that they can serve as efficient mechanisms for aggregating and disseminating information in complex fields.

However, this expansion into sensitive areas like clinical trials and regulatory decisions also raises new ethical and regulatory questions. The ANJ’s concerns about market integrity and the potential for manipulation on Polymarket could be amplified in sectors where outcomes have direct impacts on public health and significant financial implications. The challenge for platforms like Kalshi will be to navigate these complex regulatory environments while demonstrating a commitment to the compliance and transparency that the ANJ and other regulators are demanding.

Implications for the Future of Prediction Markets and Online Gambling

The ANJ’s decision to block Polymarket has several significant implications:

• Increased Regulatory Scrutiny: The action is likely to embolden other national regulators to intensify their oversight of prediction markets and similar platforms. The trend of international cooperation in blocking such sites suggests a coordinated global approach may be emerging.
• Demand for Compliance: Platforms operating in this space will face increasing pressure to adopt robust KYC procedures, implement responsible gambling measures, and ensure the integrity of their markets. Failure to do so will likely result in further access restrictions.
• The Decentralization Paradox: While decentralized technologies offer innovation, they also present challenges for traditional regulatory frameworks. Regulators must grapple with how to effectively oversee platforms that operate outside of established financial and legal structures.
• Impact on Innovation: The regulatory clampdown could stifle innovation in the prediction market sector. However, it could also incentivize developers to build platforms that are inherently more compliant and consumer-friendly, potentially leading to more sustainable growth.
• Consumer Protection vs. Market Access: The ANJ’s decision reflects a prioritization of consumer protection and market integrity over unrestricted access to these platforms. This balance will continue to be a central theme in the ongoing debate about the future of online gambling and speculative markets.

As prediction markets continue to evolve, the line between speculative trading and gambling remains a subject of intense debate. The ANJ’s stringent stance on Polymarket serves as a clear signal that regulators are prepared to intervene decisively when they perceive a threat to consumer welfare and market fairness. The industry’s ability to adapt to these evolving regulatory landscapes, by prioritizing transparency, security, and responsible practices, will be crucial for its long-term viability and acceptance. The potential for these markets to unlock valuable information and foster efficient price discovery remains, but it must be pursued within a framework that safeguards against the risks of manipulation and exploitation. The ANJ’s move, therefore, represents a critical juncture in the ongoing effort to define and govern the burgeoning world of prediction markets.