DevBlog

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

19 Posts
57 Comments
593 Claps
Lightway logo as shield
3 mins

Dev blog: A look inside Lightway

We get insights from ExpressVPN software developers on how our new VPN protocol works and what makes it more suited to users’ needs.
6 mins

Why you can’t judge a VPN by its server count

When you're looking for a VPN provider, a server count alone is not a good enough gauge on how the service will perform.
Pipe with a broken elbow.
5 mins

ExpressVPN leak testing tools

The ExpressVPN Leak Testing Tools are an extensible suite of Python tools for manual and automated leak testing of VPN applications.
8 mins

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...
Protect against DNS leaks.
3 mins

What are DNS leaks and how to prevent them

A DNS leak is when your VPN connection reveals information about your DNS requests to a third party. Here's how ExpressVPN stops DNS leaks.
Preventing DNS Leaks When Switching Network Interfaces
5 mins

Technical Overview: Preventing DNS Leaks When Switching Network Interfaces

To effectively offer a user privacy and security, a VPN application must ensure that a user’s DNS requests remain...
What does DNS mean?
3 mins

How does DNS work?

The Domain Name System (DNS) acts as the phone directory of the Internet. Instead of phone numbers, computers communicate...
How ExpressVPN utilizes Ansible
5 mins

How to use Ansible Variables and Vaults

This post was originally published on July 17, 2017. How we use Ansible extensively at ExpressVPN Our development teams work independently,...
ExpressVPN username and password authentication.
2 mins

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...
What you need to know about OSTIF's OpenVPN audit
1 min

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...

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