Have 3 independent servers (America, Europe, Asia)
confirm if your website is really down.

is https://cursosenlinea.tic.unam.mx/sl/sep.php working?

https://cursosenlinea.tic.unam.mx/sl/sep.php YOUR WEBSITE IS UP

Warsaw, Poland

HTTP/1.1 2ΟΟ OK

Chicago, USA

HTTP/1.1 2ΟΟ OK

Singapore, Asia

HTTP/1.1 2ΟΟ OK

Test performed on 2021-09-09 05:13:11

Refresh

Cursos en linea

https://cursosenlinea.tic.unam.mx/sl/sep.php

Monitor availability and performance of your website, on-line shop or web application.