Cloudflare IP Subnets


#1

For our VPS customers we strongly suggest you utilize Cloudflare. When using Cloudflare you can force all traffic to go through Cloudflare’s proxy by limiting access to your VPS to Cloudflare IP’s only.
This ensures that no other traffic can enter via port 80 or 443.
Here is the IPv4 and IPv6 Subnets you need to allow in your firewall.

103.21.244.0/22
103.22.200.0/22
103.31.4.0/22
104.16.0.0/12
108.162.192.0/18
131.0.72.0/22
141.101.64.0/18
162.158.0.0/15
172.64.0.0/13
173.245.48.0/20
188.114.96.0/20
190.93.240.0/20
197.234.240.0/22
198.41.128.0/17

2400:cb00::/32
2405:8100::/32
2405:b500::/32
2606:4700::/32
2803:f800::/32
2c0f:f248::/32
2a06:98c0::/29