Based on the data analysis, duo.vn underwent 4 accessibility tests in the 826 days that followed October 27, 2022. Out of all checks conducted, duo.vn was operational 4 times, with the latest successful check on September 20, 2024, returning a 200 status code. No non-functionality was found for duo.vn across reviews done as of January 30, 2025. As of January 30, 2025, all responses have been reported as error-free based on the replies that have been received. On September 20, 2024, data reveals a 1.439 seconds duo.vn response against 1.386 seconds averagely.