There are a number of projects that I’m actively working on and some that are complete.
The first is ping, an embedded site that runs here.
The second is an embedded subnet calculator, available here.
There is also an embedded/embeddable WHOIS page here.
Additionally, there is a DNS lookup tool that leverages dig to provide DNS information for a given domain and record combo against a DNS server accessible by my web server. Access this one here.
There is also pseudo-functional embedded traceroute application (sometimes it works sometimes it doesn’t – I consider it a bit of a work in progress) available here if you want to try it out.
The following is a color chart for rgb values in html.