Tealight, I run a server on Amazon AWS at no cost (its 1Gb RAM, 1CPU, 8Gb storage for the deployment, which is why its free).
You could go that route if youre worried about costs- it will be a bit slow though.
Additionally, when we were doing some MOSAiC stuff I convinced Amazon to donate to the website as it was a non-profit Arctic thing. They gave me a few hundred dollars. This will comfortably cover redirects to your domain name, they charge $0.40/million queries for the first billion.
That being said, if you leave a tip-jar on the website, im sure people will contribute (I would)