There are several shortening modes, can be configured in application.properties
Shows the number of visits per link.
Reduces to the most possible minimum length according to the selected radix
spring.application.link-encode-radix=RADIX_62
spring.application.short-link-max-length=16
#RADIX_62 and LENGTH_16 = 4.7672402e+28 options (47672401706823533450263330816)