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Since June 9, 2025, Russian users connecting to Cloudflare services have faced throttling by ISPs. As the throttling is being applied by local ISPs, the action is outside of Cloudflare’s control and Cloudflare are unable to restore reliable, high performance access to Cloudflare products and protected websites for Russian users in a lawful manner.
Internal data analysis indicates that throttling restricts Internet users to loading only the first 16 KB of web assets, making web navigation nearly impossible.
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Cloudflare said it hasn’t received any official communication from the Russian government regarding this action. This aligns with Russia’s ongoing efforts to isolate its Internet and minimize dependence on Western technology by promoting domestic alternatives. Recently, President Vladimir Putin threatened to limit the operations of US tech companies in Russia.
Cloudflare blog post reports that a number of other service providers are also affected by throttling or other disruptive actions in Russia, including at least Hetzner, DigitalOcean, and OVH.
Cloudflare is seeing disruptions across connections initiated from inside Russia, even when the connection reaches our servers outside of Russia. Consistent with public reporting on Russia’s practices, this suggests that the disruption is happening inside Russian ISPs, close to users.
Russian Internet Services Providers (ISPs) confirmed to be implementing these disruptive actions include, but are not limited to, Rostelecom, Megafon, Vimpelcom, MTS, and MGTS.
Based on the observations, Russian ISPs are using several throttling and blocking mechanisms affecting sites protected by Cloudflare, including injected packets to halt the connection and blocking packets so the connection times out. A new tactic that began on June 9 limits the amount of content served to 16 KB, which renders many websites barely usable.
The throttling affects all connection methods and protocols, including HTTP/1.1 and HTTP/2 on TCP and TLS, as well as HTTP/3 on QUIC.
Cloudflare Radar exists to share insights and bring transparency to Internet trends. The high rate of connectivity errors to all the data centers has resulted in an overall decrease in traffic served to Russian users.
Meanwhile, Russian digital rights and online privacy observatory Roskomsvoboda reports massive waves of mobile internet restrictions impacting over 30 regions in the country.
Source: Cloudflare bolg post
