Thank you for choosing Mackerel.
As stated in the title, on Tuesday, January 8th, 2019, encrypted communication via TLS 1.1 will be stopped.
Impact range
Browsing mackerel.io will no longer be available from older OSs and browsers that do not support TLS 1.2 or later.
We recommend using our services in officially supported environments*1 applied with the latest patches etc. If TLS 1.2 or later is not yet supported, please transition to a supported environment.
We apologize for any inconvenience and we appreciate your understanding of the importance of providing our services in a secure environment.
Thank you for choosing Mackerel.