Good day Theran, thanks for your question. I am glad to be able to provide assistance to you today. This is a common or a usual operation when connectivity is being established and that is why there are times that port 80 will be present but the main transmission of information wtih regards to the acitivation passes through port 443 and therefore it will be okay to disable port 80 as part of security measure/s.
Regards,
Paul R.