Is IPv4 faster than IPv6?

Most of the time, IPv6 doesn't appear to be much faster than IPv4. Cloud-based tech company Sucuri tested the two IPs against one another in multiple scenarios and didn't appear to find much of a difference in speed.

 

There are some situations where IPv6 seems to be faster, though. Facebook ran a test back in 2015, for example, and determined its website loaded 10-12% faster on IPv6. The large number of variables between the two makes it difficult to see which is faster without extensive testing in a highly controlled environment.