Robots.txt Sombra puzzle

From: https://lumerico.mx/omnics.txt

Allow: Tzolk'in
Allow: Imix ChikchanManik Imix ChikchanImixChikchanImix Manik Chikchan Imix Kimi Chikchan Chikchan Kimi ChikchanImixChikchanImix ChikchanKimi


Tzolk'in is, simply put, a Mayan calendar.
Imix, Day 1
Chikchan, Day 5
Manik, Day 7
Kimi, Day 6


Convert second string to numbers:
1 57 1 5151 7 5 1 6 5 5 6 5151 56

Per, http://www.dcode.fr/mayan-numbers convert sequence into morse

1, .
5, -
6, .-
7, ..-

. -..- . -.-. ..- - . .- - - .- -.-. -.-

That translates to: EXECUTEATTACK

leading to https://lumerico.mx/EXECUTEATTACK/index.html