如何判断一个 ip 是不是 cdn？

[ctftemp]

有没有各大cdn厂商的ip数据呢。

[alect]

可以发出来帮你查一查

[ctftemp]

@alect 非常感谢，但是我想要能编程实现的方法。

[Andy1999]

一般CDN都在header里面有标示

[webjin]

@Andy1999 ？？？

[lshero]

大厂的CDN一般都有AS自治域
自己拿一个IP去查AS号再去查AS号的信息呗

@Andy1999 的意思是你打开一个托管到CDN的URL比如

http://www.12306.cn/mormhweb/images/icobg_1.1.png
X-Cache:HIT from cache.51cdn.com
X-Powered-By:Servlet/2.5 JSP/2.1
X-Via:1.1 yc21:9 (Cdn Cache Server V2.0)

https://cdn.v2ex.co/avatar/a6a2/62e3/44095_large.png
etag:"55bcde3b-3147"
expires:Thu, 31 Dec 2037 23:55:55 GMT
last-modified:Sat, 01 Aug 2015 14:56:59 GMT
x-orca-accelerator:HIT from 064.mul.hkg01.hk.krill.c3edge.net

Header头里面就有CDN供应商的信息啊

[kslr]

@webjin 比如七牛 header里有一条是CDN qiniu

[ctftemp]

@lshero 关键是这个header由各厂自己定义各不相同，有的还可能没header，难以判断啊。赶脚只能自己先收集一份名单，再做判断了。

[Strikeactor]

http://dns.aizhan.com/
这边查也是个办法，大厂的CDN往往会出来一大堆域名

[webjin]

@lshero bgp

[popu111]

@lshero 接上->.he.net

[Andy1999]

<cdn>
<!--加速乐 变更时会发微信-->
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<item>117.21.219.0-117.21.219.255</item>
<item>218.75.177.0-218.75.177.255</item>

<!--dnspod 39条记录-->
<item>121.14.73.8</item>
<item>119.147.65.237</item>
<item>119.147.193.63</item>
<item>183.60.5.176</item>
<item>112.90.82.164</item>
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<item>180.153.81.158</item>
<item>180.153.212.45</item>
<item>101.226.73.30</item>
<item>27.115.124.32</item>
<item>112.64.199.150</item>
<item>112.64.238.77</item>
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<item>183.195.233.188</item>
<item>183.195.233.189</item>
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<item>123.151.43.40</item>
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<item>180.96.74.17</item>
<item>113.142.38.15</item>
<item>113.142.9.187</item>
<item>113.142.18.18</item>
<item>103.7.28.45</item>
<item>103.7.29.172</item>
<item>184.105.164.228</item>
<item>184.105.164.231</item>

<!--360cdn 15条记录-->
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<item>120.52.18.1-120.52.18.255</item>
<item>119.84.15.0-119.84.15.255</item>

<!--安全宝-->
<item>103.17.43.0-103.17.43.255</item>
<item>111.161.66.128-111.161.66.191</item>
<item>14.152.85.0-14.152.85.255</item>
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<item>14.136.130.0-14.136.130.255</item>
<item>210.209.122.0-210.209.122.255</item>

<!--百度云加速 包含了即将上线的节点-->
<item>119.188.14.0-119.188.14.254</item>
<item>119.188.132.0-119.188.132.254</item>
<item>61.155.149.0-61.155.149.254</item>
<item>61.182.137.0-61.182.137.126</item>
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<item>183.60.235.0-183.60.235.254</item>
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<item>42.236.7.0-42.236.7.254</item>
<item>119.167.246.0-119.167.246.254</item>
<item>117.27.149.0-117.27.149.254</item>
<item>59.51.81.0-59.51.81.254</item>
<item>183.61.236.0-183.61.236.254</item>
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<item>42.81.15.1-42.81.16.254</item>
<item>101.71.55.1-101.71.56.254</item>
<item>115.231.235.1-115.231.236.254</item>
<item>183.232.51.1-183.232.51.254</item>
<item>117.34.11

[Andy1999]

<!--百度云加速 包含了即将上线的节点-->
<item>119.188.14.0-119.188.14.254</item>
<item>119.188.132.0-119.188.132.254</item>
<item>61.155.149.0-61.155.149.254</item>
<item>61.182.137.0-61.182.137.126</item>
<item>222.216.190.0-222.216.190.254</item>
<item>183.60.235.0-183.60.235.254</item>
<item>117.34.28.0-117.34.28.254</item>
<item>119.167.246.0-119.167.246.254</item>
<item>42.236.7.0-42.236.7.254</item>
<item>119.167.246.0-119.167.246.254</item>
<item>117.27.149.0-117.27.149.254</item>
<item>59.51.81.0-59.51.81.254</item>
<item>183.61.236.0-183.61.236.254</item>
<item>124.95.168.129-124.95.168.254</item>
<item>61.54.46.1-61.54.47.254</item>
<item>42.81.15.1-42.81.16.254</item>
<item>101.71.55.1-101.71.56.254</item>
<item>115.231.235.1-115.231.236.254</item>
<item>183.232.51.1-183.232.51.254</item>
<item>117.34.111.1-117.34.112.254</item>
<item>120.52.113.1-120.52.114.254</item>
<item>182.150.0.1-182.150.1.254</item>

<!--网宿科技CDN-->
<item>101.227.66.0-101.227.66.254</item>
<item>106.120.191.0-106.120.191.254</item>
<item>111.206.169.0-111.206.169.254</item>
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<item>111.206.73.0-111.206.73.254</item>
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<item>123.159.203.0-123.159.203.254</item>
<item>124.167.235.0-124.167.235.254</item>
<item>125.39.1.0-125.39.1.254</item>
<item>171.112.96.0-171.112.96.254</item>
<item>182.140.142.0-182.140.142.254</item>
<item>182.140.147.0-182.140.147.254</item>
<item>183.136.208.0-183.136.208.254</item>
<item>183.57.144.0-183.57.144.254</item>
<item>183.60.232.0-183.60.232.254</item>
<item>202.100.78.0-202.100.78.254</item>
<item>202.107.244.0-202.107.244.254</item>
<item>218.92.220.0-218.92.220.254</item>
<item>219.145.171.0-219.145.171.254</item>
<item>220.194.200.0-220.194.200.254</item>
<item>221.13.201.0-221.13.201.254</item>
<item>221.204.194.0-221.204.194.254</item>
<item>221.238.24.0-221.238.24.254</item>
<item>221.6.152.0-221.6.152.254</item>
<item>222.163.201.0-222.163.201.254</item>
<item>222.186.130.0-222.186.130.254</item>
<item>222.216.188.0-222.216.188.254</item>
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<item>59.44.209.0-59.44.209.254</item>
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<item>60.220.196.0-60.220.196.254</item>
<item>60.220.197.0-60.220.197.254</item>
<item>60.222.223.0-60.222.223.254</item>
<item>61.154.102.0-61.154.102.254</item>
<item>61.167.55.0-61.167.55.254</item>
<item>61.179.107.0-61.179.107.254</item>
<item>61.185.133.0-61.185.133.255</item>
<item>61.188.191.0-61.188.191.254</item>
<item>61.54.12.0-61.54.12.254</item>
<item>120.36.156.0-120.36.156.254</item>
<item>218.107.193.0-218.107.193.254</item>
<item>222.47.61.0-222.47.61.254</item>
<item>218.85.130.104-218.85.130.255</item>
<item>180.97.180.1-180.97.180.254</item>
<item>58.51.148.1-58.51.148.254</item>
<item>218.58.222.1-218.58.222.254</item>

<!--百度加速乐（可能已经不需要了）-->
<item>118.192.48.0-118.192.48.255</item>
<item>122.193.41.0-122.193.41.255</item>
<item>180.76.3.0-180.76.3.255</item>
<item>182.118.46.0-182.118.46.255</item>
<item>175.100.207.0-175.100.207.255</item>
<item>221.10.36.0-221.10.36.255</item>

<!--蓝汛CDN-->
<item>118.123.16.0-118.123.16.255</item>

<!--ttt-->
<item>118.123.250.11</item>
<item>206.161.216.200</item>
<item>203.116.173.206</item>
<item>203.176.237.57</item>
<item>183.90.187.98</item>

<!--阿里云CDN-->
<item>42.120.107.1-42.120.107.30</item>
<item>42.120.107.33-42.120.107.35</item>
<item>42.120.107.40</item>
<item>42.120.107.50</item>
<item>121.42.17.201-121.42.17.230</item>
<item>121.42.17.240</item>
<item>121.42.17.250</item>
<item>140.205.253.129-140.205.253.201</item>

<!--微软云适配-->
<item>42.159.6.252</item>
<item>168.63.134.10</item>
<item>42.159.8.25</item>
<item>42.159.4.166</item>

<!--牛盾-->
<item>113.31.27.0-113.31.27.255</item>
<item>113.31.87.0-113.31.87.255</item>
<item>183.56.172.0-183.56.172.254</item>
<item>222.186.19.0-222.186.19.254</item>
<item>119.97.146.0-119.97.146.254</item>
<item>122.226.182.0-122.226.182.254</item>
<item>123.149.54.0-123.149.54.255</item>
<item>112.253.12.0-112.253.12.255</item>
<item>221.204.202.0-221.204.202.255</item>
<item>125.39.21.0-125.39.21.255</item>
<item>42.236.6.0-42.236.6.255</item>
<item>60.8.151.0-60.8.151.255</item>
<item>115.231.91.0-115.231.91.255</item>
<item>61.174.9.0-61.174.9.254</item>
<item>120.92.248.0-120.92.248.254</item>
<item>223.94.66.0-223.94.66.254</item>
<item>222.88.94.0-222.88.94.254</item>
<item>61.163.30.0-61.163.30.254</item>
<item>112.25.11.0-112.25.11.255</item>
<item>112.253.12.0-112.253.12.255</item>
<item>113.31.27.0-113.31.27.255</item>
<item>113.31.87.0-113.31.87.255</item>
<item>115.231.91.0-115.231.91.255</item>
<item>119.97.146.0-119.97.146.255</item>
<item>122.226.182.0-122.226.182.255</item>
<item>122.70.134.0-122.70.134.255</item>
<item>123.149.54.0-123.149.54.255</item>
<item>124.193.166.0-124.193.166.255</item>
<item>125.39.5.0-125.39.5.255</item>
<item>183.232.66.0-183.232.66.255</item>
<item>183.250.179.0-183.250.179.255</item>
<item>183.56.172.0-183.56.172.255</item>
<item>221.204.202.0-221.204.202.255</item>
<item>222.186.19.0-222.186.19.255</item>
<item>222.88.94.0-222.88.94.255</item>
<item>42.236.6.0-42.236.6.255</item>
<item>60.8.151.0-60.8.151.255</item>
<item>61.174.9.0-61.174.9.255</item>

<!--CloudFlare-->
<item>103.21.244.0-103.21.247.254</item>
<item>103.22.200.0-103.22.203.254</item>
<item>103.31.4.0-103.31.7.254</item>
<item>104.16.0.0-104.31.255.254</item>
<item>108.162.192.0-108.162.255.254</item>
<item>141.101.64.0-141.101.127.254</item>
<item>162.158.0.0-162.159.255.254</item>
<item>172.64.0.0-172.71.255.254</item>
<item>173.245.48.0-173.245.63.254</item>
<item>188.114.96.0-188.114.111.254</item>
<item>190.93.240.0-190.93.255.254</item>
<item>197.234.240.0-197.234.243.254</item>
<item>198.41.128.0-198.41.255.254</item>
<item>199.27.128.0-199.27.135.254</item>

<!--Incapdns-->
<item>199.83.128.1-199.83.135.254</item>
<item>198.143.32.1-198.143.63.254</item>
<item>149.126.72.1-149.126.79.254</item>
<item>103.28.248.1-103.28.251.254</item>
<item>185.11.124.1-185.11.127.254</item>
<item>45.64.64.0-45.64.67.255</item>
<item>192.230.64.1-192.230.127.254</item>

[Andy1999]

V2EX 截断了好几次 楼主将就着看看吧，还有腾讯云大禹和腾讯云CDN 我暂时没收集到
以及Akamai的 太大了发不上来

[simodorg]

@Andy1999 写进 gist 里面吧，这样好长 = =。

[ctftemp]

@Andy1999 太感谢了！请问你是怎么做的呢？如果可以最好在github维护一个列表，相信能服务很多人。

[Andy1999]

@ctftemp Azure开G5 zmap 扫全网IP
开80的拿出来 再扫
乌云上面有
由于坑爹的Akamai IP数实在太大，没办法维护
比如Akamai 有一个段都是的 貌似是23.0.0.0-23.255.255.255
这实在没办法全贴上来 我尽力补齐

[ctftemp]

@Andy1999 明白了，谢谢