OONI measurements suggest potential throttling of @Twitter in #Russia. Search through millions of Internet censorship measurements | OONI Explorer
By looking at the “network_events” keys, we see that the TLS handshake is performed by reading very small chunks of data very slowly, sometimes leading to a timeout.
They don’t say what measurement they’re looking at, but here is an example from AS 15640 (MTS):
https://explorer.ooni.org/measurement/20220227T195508Z_webconnectivity_RU_15640_n1_bcmeEq36YVohOkpR?input=https%3A%2F%2Ftwitter.com%2Fopenrussia_org%2F
[
{
"address": "104.244.42.1:443",
"failure": null,
"operation": "connect",
"proto": "tcp",
"t": 0.1837934,
"tags": [
"tcptls_experiment"
]
},
{
"failure": null,
"operation": "tls_handshake_start",
"t": 0.1837934,
"tags": [
"tcptls_experiment"
]
},
{
"failure": null,
"num_bytes": 281,
"operation": "write",
"t": 0.1837934,
"tags": [
"tcptls_experiment"
]
},
{
"failure": null,
"num_bytes": 517,
"operation": "read",
"t": 4.796338,
"tags": [
"tcptls_experiment"
]
},
{
"failure": null,
"num_bytes": 507,
"operation": "read",
"t": 4.796338,
"tags": [
"tcptls_experiment"
]
},
{
"failure": null,
"num_bytes": 336,
"operation": "read",
"t": 10.111066,
"tags": [
"tcptls_experiment"
]
},
{
"failure": "generic_timeout_error",
"operation": "read",
"t": 10.1847777,
"tags": [
"tcptls_experiment"
]
},
{
"failure": "generic_timeout_error",
"operation": "write",
"t": 10.1847777,
"tags": [
"tcptls_experiment"
]
},
{
"failure": "generic_timeout_error",
"operation": "tls_handshake_done",
"t": 10.1847777,
"tags": [
"tcptls_experiment"
]
}
]
I think what they are pointing out is the slow rate and low number of bytes transferred.
| time |
operation |
| 0.184 s |
connect |
| 0.184 s |
tls_handshake_start |
| 0.184 s |
write 281 bytes |
| 4.796 s |
read 517 bytes |
| 4.796 s |
read 507 bytes |
| 10.111 s |
write 336 bytes |
| 10.185 s |
generic_timeout_error |
