the reason:
Why slow access speed, download slow? github of CDN is a wall screen, and because of the network of agents, so access is very slow to download. Ping github.com, the speed of only 300 ms.
Solution:
Bypassing the dns resolve, directly binding in the local host, the method may also accelerate other sites be blocked because CDN lead to slow access.
1, access ipaddress website https://www.ipaddress.com/ (or http://tool.chinaz.com/dns), to view the site corresponding IP address, enter the URL may be inspected to the corresponding IP address, which is a domain name query tool for mapping the relationship between 2 queries github.global.ssl.fastly.net and github.com two addresses 3, multi-check several times to select a stable low latency ip 4, save the hosts inside the 5, cmd inside flush the DNS cache ipconfig / flushdns
The location of the hosts file: C: \ Windows \ System32 \ drivers \ etc
Github # 151.101.44.249 github.global.ssl.fastly.net? 192.30.253.113 github.com? 103.245.222.133 assets-cdn.github.com? 23.235.47.133 assets-cdn.github.com? 203.208.39.104 Assets-CDN .github.com? 204.232.175.78 documentcloud.github.com? 204.232.175.94 gist.github.com? 107.21.116.220 help.github.com? 207.97.227.252 nodeload.github.com? 199.27.76.130 raw.github.com? status.github.com 107.22.3.110? 204.232.175.78 training.github.com? 207.97.227.243 www.github.com? 185.31.16.184 github.global.ssl.fastly.net? 185.31.18.133 avatars0.githubusercontent.com? 185.31.19.133 avatars1.githubusercontent.com Codeload.github.com 192.30.253.120 # If you do not want to query the corresponding low latency ip, direct copy of these may also be used.