such as the blocking of websites instant messaging apps and circumvention tools OONI Probe has been run in Myanmar since 2012 and more than 263 000 network measurements have been collected from 34 local networks OONI P be The OONI Probe tool can be run to measure: Blocking of websites Blocking of instant messaging apps WhatsApp Facebook Messenger and Telegram Blocking of censorship circumvention tools Tor and Psiphon Presence of systems middleboxes in a network that might be responsible for censorship and or surveillance and Network speed and performance By running OONI Probe the collected data can potentially serve as evidence of internet censorship since it shows how when where and by whom the restriction was implemented As soon as an OONI Probe user runs a test the network measurement data from that test is instantly sent to OONI servers where it is automatically processed and published in near real time As part of this project OONI Probe tests were run in Myanmar between January 1 and July 31 2020 Through the use of OONI Probe this study worked to address the following questions: Which websites are blocked in Myanmar How do ISPs block access to websites in Myanmar Does the blocking of websites vary across networks in Myanmar If so how Are popular instant messaging apps WhatsApp Facebook Messenger Telegram consistently accessible in Myanmar throughout the testing period of this study If not which ISPs in Myanmar block access to these apps and how do they block access Are Tor and Psiphon accessible in Myanmar throughout the testing period of this study If not which ISPs block access to Tor and or Psiphon and how do they block access What is the speed and performance of local networks in Myanmar Are middleboxes present on tested networks in Myanmar The above questions were examined by running the following OONI Probe tests: Web Connectivity test: Measures the DNS TCP IP and HTTP blocking of websites WhatsApp test: Measures the blocking of WhatsApp s mobile app and web version Facebook Messenger test: Measures the blocking of Facebook Messenger Telegram test: Measures the blocking of Telegram s mobile app and web version Tor test: Measures the blocking of Tor Psiphon test: Measures the blocking of the Psiphon app HTTP Header Field Manipulation test: Measures networks to detect the presence of middleboxes HTTP Invalid Request Line test: Measures networks to detect the presence of middleboxes Network Diagnostic Test NDT : Measures the speed and performance of networks Dynamic Adaptive Streaming over HTTP DASH test: Measures video streaming performance