For years, offshore online casinos have quietly built an audience in Japan. The websites operate from abroad. The users are local. And until now, enforcement has been vague at best.
That’s changing soon.
Starting 25 September, Japan’s National Police Agency (NPA) will begin taking down offshore casino sites that target Japanese users. They’re also going after ads, social posts, and influencer content that promote these sites, even indirectly.
It’s all part of a revised gambling law passed in June. This update clears the air on what is and isn’t allowed. And the answer is simple: targeting Japan with gambling content is now illegal, no matter where the site is hosted.
Offshore platforms are now in the spotlight
Before this, offshore casinos operated in a kind of legal fog. They weren’t licensed in Japan, but they weren’t clearly banned either.
The revised law flips the script. It now says that both operating and promoting online casinos aimed at Japan are prohibited.
This includes:
- Websites in Japanese
- Ads targeted at Japanese IPs
- Affiliate content or “free play” disclaimers
- Any influencer or media posts encouraging use
Even content that doesn’t directly link to casinos can be flagged if it’s seen as encouraging gambling.
The NPA has backup
Japan’s Internet Hotline Center will now play a bigger role. They’ve mostly dealt with harmful content like abuse or drugs. But their mandate is expanding to include gambling.
They’ll scan the web and flag anything that looks like online casino promotion. That includes ads, videos, websites, and even wording that appears to target Japanese players.
Some phrases that could get flagged: “Japanese support available” and “Highly recommended in Japan”. It doesn’t matter if there’s a disclaimer. If the content is geared toward Japan, it’s at risk.
The scale is bigger than you think
According to estimates, over 3.3 million people in Japan have accessed offshore casino sites. That’s not a small number. It helps explain why the authorities are pushing harder now.
The goal is to stop this visibility altogether.
To do that, the NPA will contact:
- Hosting providers
- Social media platforms
- Ad networks
- Search engines
They want these platforms to block access, remove promotions, and shut down reach to Japanese users.
This is part of a wider shift
This crackdown isn’t coming out of nowhere. Japan has been slowly reshaping its gambling policies for years.
The country introduced integrated resorts. It passed addiction-related measures. And now it’s going online.
Offshore sites don’t follow local rules. They don’t offer responsible gambling tools. And they undermine local efforts to regulate the sector.
This new enforcement approach shows that Japan is serious. If platforms continue to target Japanese users, there will be consequences.
What to expect from September
Once the law takes effect, the NPA will begin sending takedown requests. They’ll ask for content removal and access blocks.
If that doesn’t work, there’s a chance Japan could escalate. That might include:
- Site-level restrictions
- ISP blocks
- Legal notices for foreign firms
For now, the approach is cooperative. But that could shift fast if the platforms don’t act.
Source: Gambling Insider



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