mtr!

Advanced IP Scanner 2.3 is a free, fast and powerful network scanner with a user-friendly interface. Network scanner to analyse LAN, runs as a PORTABLE edition, provides remote control of computers (via RDP and Radmin), and can even remotely switch computers off. In a matter of seconds, Advanced IP Scanner can locate all the computers on your wired or wireless local network and conduct a scan of their ports. The program provides easy access to various network resources, such as HTTP, HTTPS, FTP and shared folders. It also enables you to detect all the IP addresses on your Wi-Fi network. The remote PC shutdown feature lets you shut down any remote computer or group of computers running Windows. You can also wake these machines up remotely using Advanced IP Scanner, if their network cards support the Wake-On-LAN function. You can scan RDP resources and access them directly from the program and as well as to run ping, tracert, and SSH commands on a selected computer. It is also possible to launch the program directly from the installer with no manual installation required. Advanced IP Scanner 2.3 and Radmin remote control software are deeply integrated. IP Scanner lets you scan your network, find all computers running Radmin Server, and connect to any one of them with one click. The free Radmin Viewer needs to be installed on your PC for you to access a remote machine running Radmin Server. With Radmin, you can access the remote PC in Full Control, File Transfer, and Telnet modes. For simpler batch operations on a subset of computers, you can add machines to a list of Favorites. Advanced IP Scanner will automatically load the list at startup. You can choose whether to scan your entire network or just the computers in Favorites list. You are also able to save your Favorites list for scanning purposes and other operations. »

WinMTR is a Free Network Diagnostic ToolWinMTR is a Windows application which combines the functionality of the traceroute and ping utilities in a single network diagnostic tool. WinMTR is an equivalent of mtr for Windows developed by Appnor. Functionally it is very similar, although it does not actually share any code in common with mtr due to the major diffences between the *nix and Windows network stacks.

PingPlotter is a network troubleshooting and diagnostic tool. It uses a combination of traceroute, ping, and whois to collect data quickly - and then allows you to continue to collect data over time to give you the information you really need to identify problems (both short-term and long-term trends)

GPING (Graphical Ping) is a powerful utility that pings and graphs multiple hosts simultaneously over a user-defined polling interval and generates detailed graphs. It comes with plethora of options for novice as well as advanced network engineers.

You can use ipinfo to filter out bot traffic, customize content based on visitor's location, display full country names, perform bulk IP geolocation, and more.

MultiPing is an application built for monitoring one or more TCP/IP hosts, while providing detailed historical information about the collection period. Using the proven and powerful PingPlotter engine technology, MultiPing allows you to monitor numerous targets simultaneously giving you the data you need to choose between multiple possible hosts (for online gaming or stock trading), to monitor uptime and performance, or just keep track of general connectivity.

NetAdmin Pro is a fully automated powerful monitoring tool which continuously provides diverse information on the local network you are connected.

This program helps to visually determine the origin of connection problems. The latency over time is shown on graphs, and each instance of packet loss is marked in red.

Air Scan is an intelligent network utility app which makes your wireless networks smart... irrespective of your wireless network setup and hardware.

This extension displays detailed information about the current website. The information can be used for online investigation and SEO purposes.

NmapSi4 is a complete Qt4-based Gui with the design goals to provide a complete nmap interface for Users, in order to menage all option of this power security net scanner and search services vulnerability.

NetCrunch Tools is a completely free toolkit for network professionals, featuring Ping, Traceroute, Wake OnLAN, DNS Info, Who Is, Ping Scanner, Service Scanner, Open TCP Port Scanner, SNMP Scanner, DNS Audit and Mac Resolver in one.

Website speed test, DNS lookup service incl EDNS client subnet, fast geolocation for IP or hostname, HTTP response headers, FREAK attack tester and more.