VPN y Privacidad en Internet

VPN: A Real Guide to Services, Extensions, and Free Options

Post actualizado el día octubre 24, 2026 by DeiviSanzPlay

The word vpn (virtual private network) comes up in any conversation about privacy, but most real doubts revolve around the same thing: which service to choose, how much it costs, and what you sacrifice by using a free option. Before deciding, it helps to understand that a VPN encrypts traffic between the device and the provider’s server, so the network operator stops seeing specific destinations. That does not equal absolute anonymity: the provider does know the source IP.

The market is divided into three groups. The big commercial names —NordVPN, Surfshark, CyberGhost, ExpressVPN, and Proton VPN— compete on speed, number of countries, and independent audits. At the opposite end, Mullvad bets on accounts with no email or personal data and cash payment. And then there are the free tiers: Proton VPN Free and Urban VPN, useful for testing the concept, although they limit servers and speed.

Browser extensions: convenient, but partial

Installing a vpn extension in Chrome or Firefox is quick and solves access to restricted content. However, an extension only protects the browser, not the rest of the system or mobile apps. For an iPhone, the most solid option is a native app with the WireGuard or IKEv2 protocol, and there it is worth checking whether the service offers free vpn for iphone with a data limit or only a seven-day trial.

Beyond leisure: work and university

Corporate and academic tunnels work on the same logic. GlobalProtect VPN, from Palo Alto Networks, is deployed in companies; UCM VPN and UPM VPN cover remote access to those universities’ internal resources. These are closed configurations: they are not for bypassing geoblocks, but for entering the institutional network with your own credentials.

How to evaluate before paying

A decent vpn online publishes audits, a clear logging policy, and support for multiple devices. Kaspersky VPN and the solutions included in security suites fit if you already use that ecosystem. Opera and Firefox integrate proxies or limited VPNs: enough for a foreign wifi network, insufficient for torrents or demanding streaming. The key is to measure the speed drop, check that the kill switch works, and be wary of free services that fund servers with intrusive advertising or data resale.