Previous version of K'Net give out html page with altered links all back to itself. The data volume is too excessive that even <a href="//www.openshift.com">Openshift</a> cannot hold the fire. And later I found it had been experimented before as <a href="https://en.wikipedia.org/wiki/Proxy_server#CGI_proxy">CGI proxy</a>.The possible solution is to take html documents only, css links at most, leave other links directly to the original server.
<a href="https://kousibei.net">The result</a>, less perfect view, but acceptable.