Hello folks,

SNI based filtering is increasingly being observed around the world, so the OONI team worked on writing a new SNI blocking experiment.

This experiment was run in Iran, where SNI based blocking is carried out and where we were able to check if our experiment works as expected.

In this blog post, we document the measurement of SNI based blocking in Iran based on our new SNI blocking experiment: https://ooni.org/post/2020-iran-sni-blocking/

Best,

~ OONI team.