Seems kinda easy to block niche sites like *chan for hosting the video. Politicians and regulators can stand up and say they "did something." When they block Facebook for streaming it live, then I'll be impressed.
A decent method of side-stepping ISP DNS is to run Unbound DNS on your home router or a server in your home, if you can.
An example snippet from the configuration in Unbound DNS would look like this:
forward-zone:
name: "."
forward-addr: 1.1.1.1 # CloudFlare
forward-addr: 1.0.0.1 # CloudFlare
forward-addr: 8.8.8.8 # Google
forward-addr: 8.8.4.4 # Google
forward-addr: 208.67.222.222 # OpenDNS
forward-first: no
And you can view it's status with unbound-control: unbound-control dump_infra | grep 1\.1\.1
1.1.1.1 . ttl 1745 ping 0 var 71 rtt 284 rto 284 tA 0 tAAAA 0 tother 0 ednsknown 1 edns 0 delay 0 lame dnssec 0 rec 0 A 0 other 0
This method of caching can also slightly improve the privacy of the people using your network. You get the bonus of a local low latency cache, and requests are distributed among multiple destinations, slightly reducing the marketing benefits of running those public DNS servers.You can also enable TCP and TLS for recursive servers that support DoT (DNS over TLS). I prefer this over DoH, as everything in your home can benefit from it, not just your browser. Some of the servers mentioned above listen on TCP 853 for TLS. Just google "Unbound DNS TLS" There are some examples on Calomel as well. [1]
Here is an example snippet using TLS: (not the full config)
server:
delay-close: 200
do-tcp: yes
tcp-upstream: yes
cache-min-ttl: 300
forward-zone:
name: "."
forward-ssl-upstream: yes
forward-addr: 208.67.222.222@853
forward-addr: 1.1.1.1@853
forward-addr: 8.8.4.4@853
forward-addr: 9.9.9.9@853
forward-first: no
unbound-control dump_infra | cut -c 1-60 | column -t
9.9.9.9@853 . ttl 851 ping 6 var 84 rtt 342 rto 342 tA 0 tAA
8.8.4.4@853 . ttl 851 ping 13 var 79 rtt 329 rto 329 tA 0 tA
208.67.222.222@853 . ttl 844 ping 876 var 1823 rtt 8168 rto
And here [2] are a small list of public servers that support DoT[1] - https://calomel.org/unbound_dns.html
[2] - https://en.wikipedia.org/wiki/Public_recursive_name_server