To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address. Additionally, please check that
your computer has a publicly routable IP address and that no
firewalls are preventing the server from communicating with the
client. If you’re using the webroot plugin, you should also verify
that you are serving files from the webroot path you provided.
My web server is (include version): Apache2
The operating system my web server runs on is (include version): Ubuntu server 18.04.02 LTS
My hosting provider, if applicable, is: godaddy
I can login to a root shell on my machine (yes or no, or I don’t know): yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you’re using Certbot):
Some DuckDuckGo research suggests that Videotron intentionally block port 80 to stop people from hosting websites.
As such, your main alternative is to use DNS validation instead of HTTP validation.
Let’s Encrypt clients such as acme.sh support using DNS validation via GoDaddy DNS hosting, which your domain appears to use. That’s probably the best option for you.
I have co-workers that have the same service as me but do not use lets encrypt but cloudflare and their SSL services and don’t have any issues hosting services from home.
The script I use is to host your own data cloud @ home, I’m trying to get away from Google and Microsoft services. The script validates ports 80 and 443 access and it comes up green and says its successful in reaching my domain on ports 80 and 443.