Do you know you can get a name like mazars.work from namecheap for $2.50 a year?
You can also get a free account on cloudflare that provides you with an HTTPS face to the world, with a disguised IP address, so you can be seen as … https://erp.mazars.work/ while running http://erp.mazars.work/ from your own server.
Cloudflare handles stuff like denial of service attacks and keeping your static pages up, live and usable while your server is offline completely.