No, you are not using MPTCP to connect to this website!

Brought to you by mod_mptcp, a MPTCP module for the Apache Webserver.

What is MPTCP?

MPTCP is a proposed extension to the TCP, allowing to use multiple paths for a connection. This allows for combination of bandwidth available on multiple network interfaces or seamless roaming between different type of access networks.

Okay, this sounds awesome. How do I get rid of the frowning face emoji?

All you need to do is to access this website with a device that supports MPTCP. C. Paasch, S. Barre et al. implemetend MPTCP in the Linux Kernel and provide a modified Kernel to use on your system. Simply follow the instructions on the project's website to enable MPTCP on your device.