VPN blocking is a technique used to block theencryptedprotocol tunneling communications methods used byvirtual private network (VPN) systems. Often used by large organizations such as national governments or corporations, it can act as a tool forcomputer security orInternet censorship by preventing the use of VPNs to bypassnetwork firewall systems.
Blocking VPN access can be done a few different ways.Ports that are used by common VPN tunneling protocols, such asPPTP orL2TP, to establish their connections and transfer data can be closed by system administrators to prevent their use on certain networks. Similarly, a service can prohibit access by blocking access from IP addresses and IP address ranges that are known to belong to VPN providers.[1][2] Some governments have been known toblock all access to overseas IP addresses, since VPN use can involve connecting to remote hosts that do not operate under that government's jurisdiction.[3]
As organizations have ramped up efforts to block VPN access which bypasses their firewalls, VPN providers have responded by utilizing more sophisticated techniques to make their connections less conspicuous. For instance, as the Chinese government began usingdeep packet inspection to identify VPN protocols, the firm Golden Frog began scramblingOpenVPN packet metadata for its popular VyprVPN service in an attempt to avoid detection.[4]
Chinese internet users started reporting unstable connections in May 2011 while using VPNs to connect to overseas websites and services such as theApple App Store.[5] Universities and businesses began issuing notices to stop using tools to circumvent the firewall.
In late 2012, companies providing VPN services claimed theGreat Firewall of China became able to "learn, discover and block" the encrypted communications methods used by a number of different VPN systems.
In 2017, telecommunications carriers in China were instructed by the government to block individuals' use of VPNs by February 2018.[6]
In 2024, VPNs were frequently inaccessible during theTwo Sessions.[7]
In 2022, the government ofIndia stated VPN providers must log a variety of user data for a minimum of five years. Due to the new ruling, manyVPN service providers removed their physical servers from India and instead operate virtual servers, allowing users to still connect to India locations but without falling under the jurisdiction of Indian law.[8]
The government ofIran began blocking access to non-government sanctioned VPNs in March 2013,[9] a few months prior to the2013 elections, to "prosecute users who are violating state laws" and "take offenders to national courts under supervision of judiciary service". Use of VPNs approved by the government reportedly led to surveillance and inspection of private data.[10]
In July 2017, theState Duma passed a bill requiring the Internet providers to block websites that offer VPNs, in order to prevent the spreading of "extremist materials" on the Internet.[11][12] It is unclear exactly how Russia plans to implement the regulation; though it seems like both the Federal Security Service (FSB) and ISPs will be tasked with identifying and cracking down on VPNs. In November 2017, BBC made it clear that Russia has not banned VPN usage entirely. VPN usage is only banned when attempting to access sites already blocked by Roskomnadzor or Russia's governing body for telecommunications and mass media communications.[13] Using a VPN for business or personal reasons to access legal sites in Russia is permitted.[14]
Russia has banned various VPN service providers in 2021[15] and forced Google to delist VPN websites even while Russians continue to download VPNs.[16]
The government ofSyria activateddeep packet inspection after the uprising in 2011 in order to block VPN connections.[17] The censorship targeted different VPN protocols like OpenVPN, L2TP and PPTP.
The government ofPakistan issued a notice to VPN providers to register their IPs, otherwise their VPN service will be blocked like inChina.
In an attempt to curb the use of social media by its citizens, the government ofTurkey has considered the complete ban of VPN apps. TheNationalist Movement Party proposed a bill covering such a ban in July 2020.[18][19][20]
In January 2026, theHouse of Lords voted that aims to "prohibit the provision" of VPNs for children to bypassage verification system as part of the amendment toChildren's Wellbeing and Schools Bill.[21]
In an attempt to stop unauthorized access from users outside the United States,Hulu began blocking users accessing the site from IP addresses linked to VPN services in April 2014. In doing so, however, the company also restricted access from legitimate U.S.-based users using VPNs for security reasons. VPN providers such as VikingVPN,NordVPN and TorGuard stated that they would seek ways to address this issue for their customers by speaking directly to Hulu about a resolution and rolling out more dedicated IP addresses, respectively.[22]
Netflix came under pressure from major film studios in September 2014 to block VPN access, as up to 200,000Australian subscribers were using Netflix despite it not being available yet inAustralia.[23] VPN access for Netflix has, like other streaming services, allowed users to view content more securely or while out of the country. Netflix users have also used VPNs as a means of bypassing throttling efforts made by service providers such asVerizon. It is also important to note that all VPNs might slow down internet connection when trying to stream Netflix; however, there are cases where using a VPN might improve connection if a user's ISP has been throttling Netflix traffic. As of June 2018, the Netflix VPN and proxy ban is still active. The CEO of Netflix,Reed Hastings made a comment in 2016 about the VPN market as a whole; “It’s a very small but quite vocal minority. It’s really inconsequential to us.”[24]
TheBBC started blocking users connecting via VPNs in October 2015.[25] The BBC is able to detect VPN connections by monitoring the number of simultaneous connections coming from eachIP address. If the number of connections from the same IP becomes abnormal the BBC will block future connections from the offending IP address.
BBC iPlayer remains unavailable toUK TV Licence holders connecting from other EU countries.[26] The BBC said that it was "interested in being able to allow UK licence fee payers to access BBC iPlayer while they are on holiday, and welcome the European Union regulation to help make this feasible."[27]
Meta'sThreads platform started blocking users from theEuropean Union who used VPNs to bypass the access restriction to the service stemming from the privacy concerns of the app.[28] However, as of December 14, 2023,[needs update] the platform was accessible to users in the European Union.[29]