经常用户因为服务器开启防火墙导致CDN回源IP段被拦截，影响正常访问，本文整理了腾讯云CDN、百度云CDN、百度云加速、阿里云CDN、创宇云CDN（加速乐）、360网站卫士CDN（奇安信网站卫士）、牛盾云安全CDN、Cloudflare CDN 的节点IP段。
注：IP段仅供参考，因CDN回源节点不是固定的，所以有些是随时变更的，所以一切以官方为准。
腾讯云CDN节点IP段（来源：腾讯云官方论坛）
112.29.152.0-112.29.152.255
112.90.51.0-112.90.51.255
113.207.39.0-113.207.39.255
115.231.37.0-115.231.37.255
117.169.77.0-117.169.77.255
117.34.36.0-117.34.36.255
119.147.227.0-119.147.227.255
120.41.44.0-120.41.44.255
125.39.6.0-125.39.6.255
180.163.68.0-180.163.68.255
182.247.229.0-182.247.229.255
218.60.33.0-218.60.33.255
219.146.241.0-219.146.241.255
220.170.91.0-220.170.91.255
221.204.182.0-221.204.182.255
222.161.220.0-222.161.220.255
223.87.3.0-223.87.3.255
42.236.2.0-42.236.2.255
58.216.25.0-58.216.25.255
60.174.156.0-60.174.156.255
61.184.213.0-61.184.213.255
61.240.150.0-61.240.150.255百度云CDN节点IP段：（来源：百度云官网 ）
111.63.51.0-111.63.51.24 221.195.34.0-221.195.34.24 183.230.70.0-183.230.70.24 183.214.156.0-183.214.156.24 223.112.198.0-223.112.198.24 58.216.2.0-58.216.2.24 218.98.44.0-218.98.44.24 59.38.112.0-59.38.112.24 106.122.248.0-106.122.248.24 163.177.8.0-163.177.8.24 61.136.173.0-61.136.173.24 120.221.136.0-120.221.136.24 150.138.248.0-150.138.248.24 27.221.124.0-27.221.124.24 183.131.62.0-183.131.62.24 120.199.69.0-120.199.69.24 120.221.29.0-120.221.29.24 150.138.138.0-150.138.138.24 27.221.27.0-27.221.27.24 42.81.93.0-42.81.93.24 58.215.118.0-58.215.118.24 36.42.75.0-36.42.75.24 111.177.3.0-111.177.3.24 111.47.227.0-111.47.227.24 111.177.6.0-111.177.6.24 119.36.164.0-119.36.164.24 112.84.34.0-112.84.34.24 223.111.127.0-223.111.127.24 58.20.204.0-58.20.204.24
百度云加速CDN节点IP段（来源：百度云加速 时间：2019-07-09）
百度云加速这方面做的还是很不错的，如果你服务器使用了云锁、安全狗和IPtables，都是有专门配置文件，直接导入就可以。
111.32.135.1-111.32.136.255 112.65.73.1-112.65.75.255 115.231.186.1-115.231.187.255 219.159.84.1-219.159.84.255 113.207.100.1-113.207.102.255 119.84.92.1-119.84.93.255 180.163.188.1-180.163.189.255 163.53.89.1-163.53.89.255 115.231.186.1-115.231.187.255 125.39.239.1-125.39.239.255 125.39.174.1-125.39.174.255 119.167.246.1-119.167.246.255 117.27.149.1-117.27.149.255 59.51.81.128-59.51.81.255 183.61.236.1-183.61.236.255 14.17.71.1-14.17.71.255 124.95.168.128-124.95.168.191 124.95.188.128-124.95.188.191 59.51.81.1-59.51.81.255 220.170.185.1-220.170.186.255 61.54.46.1-61.54.47.255 101.71.55.1-101.71.56.255 183.232.51.1-183.232.51.255 183.232.53.1-183.232.53.255 157.255.25.1-157.255.26.255 183.61.177.1-183.61.177.255 183.61.190.1-183.61.190.255 120.52.113.1-120.52.113.255 61.182.137.1-61.182.137.255 61.182.136.1-61.182.136.255 42.236.93.1-42.236.94.255 222.216.190.1-222.216.190.255 116.31.126.1-116.31.126.255 116.31.127.1-116.31.127.255 183.60.235.1-183.60.235.255 58.211.2.1-58.211.2.255 58.211.137.1-58.211.137.255 61.155.149.1-61.155.149.255 61.156.149.1-61.156.149.255 61.155.165.1-61.155.165.255 119.188.9.1-119.188.9.255 119.188.97.1-119.188.97.255 122.190.2.1-122.190.3.255 112.25.90.1-112.25.91.255 117.34.13.1-117.34.14.255 150.138.149.1-150.138.151.255 220.170.185.1-220.170.185.255 157.255.25.1-157.255.25.255 101.227.206.1-101.227.207.255 163.53.89.1-163.53.89.255 180.163.113.1-180.163.113.254 111.174.63.1-111.174.63.255 111.174.61.1-111.174.61.255 220.195.21.1-220.195.21.255 220.195.22.1-220.195.22.255 103.21.244.1-103.21.247.255 103.22.200.1-103.22.203.255 103.31.4.1-103.31.7.1 104.16.0.1-104.31.255.255 108.162.192.1-108.162.255.255 131.0.72.1-131.0.75.255 141.101.64.1-141.101.127.255 162.158.0.1-162.159.255.255 172.64.0.1-172.71.255.255 173.245.48.1-173.245.63.255 188.114.96.1-188.114.111.255 190.93.240.1-190.93.255.255 197.234.240.1-197.234.243.255 198.41.128.1-198.41.255.255 199.27.128.1-199.27.135.255
阿里云CDN节点IP段（来源：阿里云栖社区 ）
阿里云官方不提供提供节点白名单，日峰值超过 1Gbps 的用户可以 再此 提交工单。
下面是目前测得的IP段，仅供参考：
47.244.0.0-47.244.0.16 47.106.0.0-47.106.0.16 106.15.0.0-106.15.0.16 101.132.0.0-101.132.0.16 119.23.0.0-119.23.0.16 101.200.0.0-101.200.0.16 114.215.0.0-114.215.0.16 47.52.0.0-47.52.0.16 198.11.0.0-198.11.0.16 47.88.0.0-47.88.0.16 161.117.0.0-161.117.0.16 47.246.0.0-47.246.0.16 119.23.0.0-119.23.0.16
加速乐/创宇云CDN节点IP段（来源：官网 时间：2019-07-11）
创宇云CDN节点获取，必须要先接入自己的网站，并保证网站合规。
查看节点IP：登录加速乐，选择域名管理-设置-控制面板-查看节点IP-查看当前网站的节点集群，可以看到具体的情况。
下面是创宇云CDN节点IP段：
113.107.238.0-113.107.238.255 106.42.25.0-106.42.25.255 183.222.96.0-183.222.96.255 117.21.219.0-117.21.219.255 116.55.250.0-116.55.250.255 111.202.98.0-111.202.98.255 111.13.147.0-111.13.147.255 122.228.238.0-122.228.238.255 58.58.81.0-58.58.81.255 1.31.128.0-1.31.128.255 123.155.158.0-123.155.158.255 106.119.182.0-106.119.182.255 113.207.76.0-113.207.76.255 117.23.61.0-117.23.61.255 118.212.233.0-118.212.233.255 111.47.226.0-111.47.226.255 219.153.73.0-219.153.73.255 113.200.91.0-113.200.91.255 203.90.247.0-203.90.247.255 183.110.242.0-183.110.242.255 185.254.242.0-185.254.242.255 116.211.155.0-116.211.155.255 116.140.35.0-116.140.35.255 103.40.7.0-103.40.7.255 1.255.41.0-1.255.41.255 112.90.216.0-112.90.216.255 1.255.100.0-1.255.100.255
360CDN/奇安信网站卫士节点IP段（来源：奇安信官网 ）
360搞的这个就比较简单，只有两个IP段（感觉360是要放弃网站卫士了，公司都换了）：
36.27.212.0-36.27.212.255 123.129.232.0-123.129.232.255
官方说明：请将这些IP段加入您服务器和机房白名单中，防止网站卫士服务被误认为攻击而屏蔽IP。若服务器和或机房防火墙屏蔽了我们的IP，可能会导致我们出现502报错。
牛盾云安全CDN节点IP段（来源：官网 ）
113.31.27.0-113.31.27.255 222.186.19.0-222.186.19.255 122.226.182.0-122.226.182.255 36.99.18.0-36.99.18.255 123.133.84.0-123.133.84.255 221.204.202.0-221.204.202.255 42.236.6.0-42.236.6.255 61.130.28.0-61.130.28.255 61.174.9.0-61.174.9.255 223.94.66.0-223.94.66.255 222.88.94.0-222.88.94.255 61.163.30.0-61.163.30.255 223.94.95.0-223.94.95.255 223.112.227.0-223.112.227.255 183.250.179.0-183.250.179.255 120.241.102.0-120.241.102.255 125.39.5.0-125.39.5.255 124.193.166.0-124.193.166.255 122.70.134.0-122.70.134.255 111.6.191.0-111.6.191.255 122.228.198.0-122.228.198.255 121.12.98.0-121.12.98.255 60.12.166.0-60.12.166.255 118.180.50.0-118.180.50.255 183.203.7.0-183.203.7.255 61.133.127.0-61.133.127.255 113.7.183.0-113.7.183.255 210.22.63.0-210.22.63.255 60.221.236.0-60.221.236.255 122.227.237.0-122.227.237.255
Cloudflare CDN节点IP段 （来源：官方链接 ）
IPv4 103.21.244.0-103.21.244.22 103.22.200.0-103.22.200.22 103.31.4.0-103.31.4.22 104.16.0.0-104.16.0.12 108.162.192.0-108.162.192.18 131.0.72.0-131.0.72.22 141.101.64.0-141.101.64.18 162.158.0.0-162.158.0.15 172.64.0.0-172.64.0.13 173.245.48.0-173.245.48.20 188.114.96.0-188.114.96.20 190.93.240.0-190.93.240.20 197.234.240.0-197.234.240.22 198.41.128.0-198.41.128.17 IPv6 2400:cb00::/32 2405:b500::/32 2606:4700::/32 2803:f800::/32 2c0f:f248::/32 2a06:98c0::/29
