I tried this two decades ago. We just had broadband for the first time and I installed some web service application on my Windows PC. My ISP had what appeared t

I tried this two decades ago. We just had broadband for the first time and I installed some web service application on my Windows PC. My ISP had what appeared to be a static IP so I manually set up a free DNS service with that IP. The experiment didn't last long enough for the IP to change but I did learn it did because long after I took the service down, my domain was pointing to someone else's IP. It what I now realise was a bad idea, I was writing code by web server code using C with CGI. I was supposed to use Perl, but I didn't want to spend time learning that as I already knew C.