Network Based Features from an url

I need to find out some network based features from a given url like:

1. Tcp_conversation_exchange: This is the total number of TCP packets sent to the remote server by the crawler.
2. Dist_remote_TCP_port: This is the total number of distinct TCP ports that the remote webserver used during the conversation with the crawler.
3. Remote_ips: This is the number of distinct remote IP addresses connected by the crawler, not including the DNS server IP addresses. etc.

May be socket programming will help. But I have no idea how to get these features with socket programming

There might be some urls which are malicious and harmful, still we should be able to find the features out.