Protocol Websites
ntp.org: Home of the Network Time Protocol
The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver...
53,911 
$ 410,880.00
MailTester.com
Check if an e-mail address is valid or not. Find out why a mail bounces. Get technical information about a mail account and it's mail (SMTP) server.
34,036 $ 650,880.00
Whats My IP Address, Who is My ISP, Host and User Agent
Spyber.com - What is my IP Address, who is my ISP, find your browser and operation system, user agent, and a quick free spyware and adware scan / analyzer.
575,304 $ 3,200.00
EmailArms - security and password tools, privacy software, Internet and email...
Security and password tools, privacy software, Internet and email utilities
1,040,122 $ 1,920.00
Hprose Home
Hprose 是高性能远程对象服务引擎（High Performance Remote Object Service Engine）的缩写。它是一个先进的轻量级的跨语言跨平台面向对象的高性能远程动态通讯中间件。它不仅简单易用，而且功能强大。你只需要稍许的时间去学习，就能用它轻松构建跨语言跨平台的分布式应用系统了。
1,059,265 $ 1,920.00
Findports.com - Router/firewall ports database and game system requirements
Online game/application router/firewall tcp/udp protocol port forwarding database and game system requirements
678,989 $ 2,560.00
SEALEVEL SYSTEMS RS-232, RS-422, RS-485, USB to serial, Ethernet to serial,...
Sealevel Systems provides serial and digital I/O solutions including RS-232, RS-422, and RS-485 PCI, Low Profile/Universal Bus PCI, PC/104, PCMCIA, USB, and Ethernet serial...
542,751 $ 3,200.00
