Network tampering
2 unexpected header change
Middleboxes
Runtime: 292ms
On May 18, 2025, 05:29 PM UTC, network traffic was manipulated when contacting our control servers.
This means that there might be a middlebox on AS28220 in Brazil, which could be responsible for censorship and/or surveillance.
Resolver
Resolver ASN
AS36692
Resolver IP
146.112.133.131
Resolver Network Name
Cisco OpenDNS, LLC
Report ID
20250518T171903Z_httpheaderfieldmanipulation_BR_28220_n1_zwAT4dVCnCXeGE3u
Platform
windows
Software Name
ooniprobe-desktop-unattended (3.23.0)
Measurement Engine
ooniprobe-engine (3.23.0)