wrong ssl certificate on download page

i tried to download avast from
https://www.slunecnice.cz/sw/avast-free-antivirus/

it forwarded me to
https://avast.ustab.d.avcdn.net/ustab/avast/mmm_slc_dlp_000_119_a/avast_free_antivirus_setup_online.exe
and i got error
avast.ustab.d.avcdn.net používá neplatný bezpečnostní certifikát. Certifikát je platný pouze pro následující domény: a248.e.akamai.net, *.akamaihd-staging.net, *.akamaized.net, *.akamaihd.net, *.akamaized-staging.net Kód chyby: SSL_ERROR_BAD_CERT_DOMAIN

why not download it from here >> https://forum.avast.com/index.php?topic=223244.0

I would also suggest using the full off-line installation file and not the stub installer. If you have a hiccup in your internet connection it could break your installation.