https://community.zyxel.com/en/discussion/23595/why-i-get-bl...
replySeems like you or someone upstream of you uses a Zyxel brand device that has some kind of dns content filtering enabled. You should be able to get around this on a given machine by configuring an alternate dns provider (dns over https, cloudflare's 1.1.1.1, google's 8.8.8.8, quad9's 9.9.9.9, etc.) or doing something similar at your own router/dns resolver/dhcp server if it's not the thing doing this.
I certainly don't get that cert. I'm seeing a LetsEncrypt cert for idtech.space with various SANs.
reply # host code.idtech.space
code.idtech.space is an alias for idtech.space.
idtech.space has address 192.99.32.215
idtech.space has IPv6 address 2607:5300:60:47d7::Maybe you are MITM`d?
replyAh. Looks like it is being blocked by my corporate software.
replyThx for the replies.