I was impressed by this part: > Cloudflare does not accept anonymous payments, so we can only use their free plan. This means that we can’t use their load bala

I was impressed by this part: > Cloudflare does not accept anonymous payments, so we can only use their free plan. This means that we can’t use their load balancing or failover features. We therefore implemented this ourselves at the domain level. On page load, the browser will check if the current domain is still available, and if not, it rewrites all URLs to a different domain. Are there any free and open source tools for load balancing that rival Cloudflare’s paid offerings?