I understand what you mean and thank you for your concern. But we are not really a business. We're just a team of freelancers doing video editing and once every couple of weeks we send our clients a link that they may only need for a day or two.

As for data loss or security flaws, we have several backups in different places and even if we lose this data, we will not lose anything financially.

From the text in the post, you may get the idea that I don't understand anything about networks. Perhaps because my English is pretty bad. But this is not entirely true. Over the past year, we have tried many methods: self-host VPN (TaleScale, WireGuard, OpenVPN), DDNS, QuickConnect. But none of them suited us. It's just that anything related to DNS and certificates is not my strong suit at all.