18 tests of customs.bg's functioning were conducted during the 1 261 day period starting on July 5, 2021. Among all the analyses done, customs.bg was functional 5 times, returning a code 200 on its last recorded uptime on August 29, 2022. As of December 18, 2024, no instances of customs.bg being down had occurred during the inspections that were conducted. The most current error, code 404, was noted on October 4, 2024, out of the 13 responses that included errors. Customs.bg's October 4, 2024, response time was 1.298 seconds, with an average response time of 1.401 seconds.