According to the report, 1 uptime tests of isbn.bn.br were carried out in the 1 115 days following November 5, 2021. At every check performed as of November 24, 2024, isbn.bn.br was found to be down or experiencing some kind of problem. The results showed that isbn.bn.br experienced downtime in 100.00% of evaluations, or 1, with the most recent incidence being on November 5, 2021. There were no responses with error status among the replies received as of November 24, 2024. In contrast to the average of 0.001 seconds, isbn.bn.br's response time on November 5, 2021, was — seconds.