Mercari

Mercari Blocked in China and North Korea: Censorship Methods and Workarounds

What Mercari is

Mercari is a Tokyo-based peer-to-peer marketplace launched in 2013 by Shintaro Yamada. The platform operates under Mercari, Inc. and has expanded globally, with versions in Japan, the United States, the United Kingdom, and France. The service functions as a mobile-first classified ads platform where users buy and sell secondhand goods—electronics, fashion, collectibles, and household items. As of 2023, Mercari reported over 20 million monthly active users across its operating regions, with significant user bases in Japan and North America.

Why it's censored

Mercari faces outright blocking in China and severe restrictions in North Korea, though the censorship rationales differ by jurisdiction.

In China, Mercari's blockade stems from the country's foreign e-commerce regulation framework administered by the Ministry of Commerce (MOFCOM) and the Cyberspace Administration of China (CAC). The platform operates without a licensed presence in mainland China and lacks the required domestic server infrastructure mandated under the Personal Information Protection Law (PIPL). More broadly, Beijing restricts unvetted foreign marketplaces to channel commerce through state-approved platforms like Alibaba and JD.com, which provide easier surveillance and tax collection. Mercari's independent transaction verification and cross-border payment systems operate outside the oversight mechanisms Beijing requires.

North Korea's blockade is absolute and enforced under its "Hostile Foreign Information" classification system. The regime permits only state-approved domestic platforms and blocks virtually all foreign e-commerce services. Mercari, like eBay and Amazon, is blocked not for specific regulatory non-compliance but as part of broader information control policy administered by the Ministry of Post and Telecommunications. Access to international marketplaces contradicts the regime's restrictions on foreign currency transactions and informal private commerce.

Technical blocking methods

China employs layered blocking techniques managed by the Great Firewall infrastructure:

IP-based filtering blocks Mercari's known server addresses at the backbone level. Additionally, SNI (Server Name Indication) filtering inspects TLS handshakes to identify HTTPS traffic destined for Mercari's domain, intercepting requests before encrypted content loads. DNS manipulation redirects mercari.com queries to null routes or monitoring servers. Deep packet inspection (DPI) identifies Mercari's API traffic patterns even when URLs are obfuscated, based on behavioral signatures.

North Korea's blocking is simpler but total: the regime operates a walled-garden ISP infrastructure where only domestically hosted or explicitly pre-approved international services are accessible. Mercari's domain is blacklisted at the national gateway level, making it unreachable for the tiny fraction of North Korean citizens with internet access.

User workarounds

Users in China attempting to access Mercari employ standard circumvention methods: Virtual Private Network (VPN) tunneling routes traffic through servers outside Chinese jurisdiction, bypassing IP filtering and DPI inspection. Proxy services function similarly. HTTPS with obfuscated SNI can mask destination domains from network-level inspection. Some users rely on Tor Browser, though Tor's popularity has triggered active blocking measures in China since 2015.

These approaches are technical but carry regulatory risk in China, where circumventing censorship is increasingly scrutinized by authorities.

Alternatives

In China, users turn to native alternatives: Xianyu (Alibaba's marketplace), 58.com (classifieds), and Douban (community-based secondhand trading). These platforms operate with CAC approval and domestic infrastructure.

In North Korea, no legal alternatives exist. Overseas users from North Korea attempting access face identical blocking across all international e-commerce platforms.

Outlook

Restrictions are tightening, not easing. China's 2021 PIPL and 2022 Platform Security Assessment regulations have made foreign marketplace operation more difficult, not less. North Korea shows no indicators of liberalization. Mercari's absence from mainland China reflects sustained policy, and future licensing remains unlikely absent major geopolitical shifts.