Is it feasible to use a home server with gigabit internet and a dynamic IP address that never changes to host my website? Instead of DDNS, I always use this IP to access the web server. If it is not possible, please provide a reason for why it cannot be done. My aim is to gain a better understanding of the situation.

What are the technical dissimilarities between static and dynamic IP with the exception of consistency? In my situation, the IP hasn't changed for two years, and if it does, it would change again only after another two years.

Furthermore, I have a gigabit internet connection with a 2ms ping.

If the status quo is maintained, an unexpected change will eventually occur, leading to a major malfunction.  Irrespective of the type of internet connection a person has, if it is intended for personal use and the equipment being utilized is a standard desktop computer.

Alternatively...

Do you possess server equipment? Is your internet service package guaranteed to be continuously stable by law? Are there multiple internet channels available for backup? Have you recently upgraded your administrative skills? Do you have a redundant power supply with its own fuel-powered generator? Has all of the computer hardware been set aside in case of a breakdown? Are you prepared to wake up at two in the morning on a Sunday and fix any sudden issues?

If none of these are relevant to you, then it's perfectly fine to remain at home.

As an additional thought, while having a home server has certain advantages, it also has certain drawbacks, such as those described in the latter half of the text. It is critical to carefully weigh the pros and cons of hosting a server at home while taking all necessary precautions to ensure smooth running.

What is the rationale behind performing manual setup when even old D-Link routers can handle this process automatically from the web panel? Simply forwarding the port to your device's 80 port would suffice. I used this method to create my file washer previously, but now I'm disillusioned with it.

There are several issues with using this approach in terms of limited bandwidth and constantly searching for a dynamic white IP. Households may frequently attempt to disconnect the device on which the website is running, and such a site may succumb to DDoS attacks without even putting up a fight - they may simply overload the already limited channel that is already being used by 1.5 users for DDoS attacks.  Power interruptions may also occur.

In the past, when hosting was difficult, this approach may have been used, and I handed in my diploma six years ago as a result.

However, these days, with the internet providing various possibilities to host your projects in different places, there seems to be no need for this. Many hosting providers offer limited free or low-cost VDS, including Amazon. Shared hosting services for typical projects are available, as are options for OpenSource.

As a result, I have a natural question: why do it this way now? Even someone on a tight budget like me can afford to rent a virtualization server from Hetzner to host a few websites, ownCloud, GitLab, VPN, and a few more useful tools.

Even if your dynamic IP hasn't changed in two years, it's still technically dynamic. This means your ISP can change it at any time, usually during maintenance or if you reset your router. While you've been lucky so far, there's no guarantee it'll stay the same, and that's the main risk. Static IPs are assigned to stay the same, which is why they're preferred for hosting services. They offer reliability and predictability, which is crucial for a website's accessibility.

Now, the technical difference between static and dynamic IPs, aside from consistency, lies in how they're assigned and managed. Static IPs are manually assigned and remain constant, while dynamic IPs are assigned by a DHCP server and can change over time. This automatic assignment is efficient for ISPs managing large pools of IPs, but it can be a hassle for hosting since any change requires updating DNS records if you're using a domain name.

In your situation, since you don't want to use DDNS and rely solely on the IP, any change would mean downtime until you discover and propagate the new IP, which could affect your site's availability and SEO negatively. If your IP changes, users won't be able to reach your site until you update them with the new address.

Your gigabit connection and low ping are great for hosting in terms of speed and latency, but remember, hosting from home also involves dealing with potential ISP bandwidth throttling, residential terms of service restrictions, and less robust security compared to professional hosting services.

So, while it's technically possible to host your site this way, the unpredictability of a dynamic IP, even one that rarely changes, poses a risk to consistent uptime. If you're serious about hosting, it might be worth considering a static IP or using a DDNS as a backup plan just in case.