Data from the 1 180 day period starting on September 9, 2021, indicates 12 analyses of the operation of duong-doan.github.io. As of December 2, 2024, every check that was performed revealed that duong-doan.github.io has functional or accessibility problems. No instances of inaccessibility were found for duong-doan.github.io in tests made as of December 2, 2024. The latest error, with error code 404, occurred on September 17, 2024, among the 12 responses with errors. Averaging 0.098 seconds, duong-doan.github.io had a response time of 0.009 seconds on September 17, 2024.