2 availability checks of tu-sofia.bg were performed in the 1 257 day period starting on June 18, 2021. During the entire series of tests, tu-sofia.bg was accessible 2 times, most recently on November 19, 2024, responding with a 200 status code. Checks showed tu-sofia.bg experienced no service interruptions as of November 26, 2024. No errors have been encountered in any responses as of November 26, 2024, according to all replies obtained. Tu-sofia.bg had a 0.599 seconds response time, contrasted by a 0.551 seconds average, on November 19, 2024.