I would like to bind www.synlir.cc (registered PorkBun) with my account.

I followed the following steps:

Copy the following to my registrar:

dns1.serv00.com
dns2.serv00.com

This is what we see on PorkBun

nameservers

DNS has propagated (i think, see below please)

I have now went to Devilweb, and added a new Website:

Website added

I have chosen:

Type: Proxy
Server: the serv00 one
Port: Port that I previously reserved to run my D app.

See below:
Website setup

Finally, I go to the DNS Zone: The DNS is already added.

DNS zone

Now, I am working without https to test my app and stuff.

But, going to www.synlir.cc brings me this message:

Error 504
Request timeout

The server cannot fulfill your request due to the too long waiting time for the script to execute.

If you have any questions contact us.

This error makes me think, that the DNS has propagated, but something is wrong with proxy.

In fact, going to http://www.synlir.cc:my_port does work. But I want my users to be able to handle it without specifying the port.

Please, help. Thank You