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DevBlog

DevBlog

The devs are the backbone of ExpressVPN and occasionally contribute their otherworldly wisdom to the blog.

  • Dev blog: A look inside Lightway

    Dev blog: A look inside Lightway

    VPN protocols define how a client and a server authenticate each other, establish a connection, and transmit data through the created tunnel. Plenty of VPN protocols are available, each made for its o...

    DevBlog 01.02.2021 3 mins
  • How ExpressVPN keeps its web servers patched and secure

    How ExpressVPN keeps its web servers patched and secure

    This article explains ExpressVPN’s approach to security patch management for the infrastructure running the ExpressVPN website (not the VPN servers). In general, our approach to security is: Make s...

    DevBlog 22.06.2018 8 mins
  • How ExpressVPN authenticates its apps

    How ExpressVPN authenticates its apps

    This post was originally published on June 9, 2017. How do ExpressVPN servers know which app belongs to a customer and which does not? On most apps, the authentication happens in the background. Once ...

    DevBlog 09.06.2017 2 mins
  • The facts about the OSTIF OpenVPN source code audit

    The facts about the OSTIF OpenVPN source code audit

    This post was originally published on May 15, 2017. With funding from the Open Source Technology Improvement Fund (OSTIF), a group of security experts from QuarksLab spent the first few months of 2017...

    DevBlog 15.05.2017 1 mins
  • How ExpressVPN apps confirm they’re talking to ExpressVPN servers

    How ExpressVPN apps confirm they’re talking to ExpressVPN servers

    This post was originally published on December 7, 2016. When you connect to a VPN, have you ever wondered if you’re connecting to a genuine VPN server? What if a third party---like a government, ISP...

    DevBlog 07.12.2016 3 mins
  • ExpressVPN and Heartbleed

    ExpressVPN and Heartbleed

    This post was originally published on April 13, 2014. We'd like to give some more insight into how we dealt with the Heartbleed security bug that affected most of the Internet last week. The key point...

    DevBlog 13.04.2014 1 mins
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