{%- assign firstThreeDigits = trackingNumber | slice: 0, 3 %}
{%- if firstThreeDigits == '157' -%}
https://www.dao.as/privat/find-din-pakke?stregkode={{trackingNumber}}
{%- elsif firstThreeDigits == '770' -%}
https://www.postnord.dk/varktojer/track-trace?shipmentId={{trackingNumber}}