Network Query Tool (NQT) is a one-stop solution for getting info about a domain or IP address. After supplying a hostname or IP, NQT will do the following: reverse lookup, DNS query (dig), whois (domain or IP owner), check port, ping, and traceroute.

• Free

A simple program that you can host on your server to enable people to ping from your location to anywhere. Just one file.

• Free

A flexible and fast portscanning script to scan a single host or a range of contiguous IP addresses. Scan each host for a single port, a range of ports or a list of specific ports you determine.

• Commercial

Check whether a given domain is alive or not. You will also get a ping response time which can indicate the speed of the webserver. No installation is needed. Just copy it and use it. The script uses CSS so you can change the look and feel easily.

• Free

A pinging script with an unlimited amount of systems that can be added to the database for pinging whenever desired. It can also send email notifications when servers are down.

• Free

Handle large external information flows and make them an integral part of your mainstream business database. This program can process raw and random data downloaded from the internet, lists and price lists, stock quotations, prices and offers, orders, set up subscriber databases, analyze statistical data and more.

• $49

Let your site visitors extract the HTTP headers of a specified website. Very helpful to spot any sneaky redirects or configuration errors

• $9.95

This program extracts domains and links from search engine results, and fetches results that can be download in CSV format to your local disk. You can extract the search engine results from Google, Yahoo, MSN, Overture, Alltheweb and Altavista by keyword and choose how many search results to extract.

• $29

A simple script that makes short URLS. It also gives stats of total hits. It can be embedded into any template with just a single line of coding. Comes with an online installer and installation instructions.

• $10

This program will attempt to find the true hostname and IP address for a domain name.

• Free

An easy to use and install script. On the homepage, the IP address and country of the visitor is shown. The script comes with domain whois lookup, domain availability check and IP to country check.

• $29.90

Identify the country of a visitor. Instead of a database, IP information is stored into many files, so that only one of them is requested each time. Additionally, files with data only for specific countries is available. Example scripts for usage of data files is provided. IP data is updated regularly.

• Free

An easy to install three-tier web proxy. It can remove cookies, the HTTP referer field, the HTTP user-agent field, scripts on the page, and objects, altering the user-agent string to whatever you please. It can also tunnel your proxied traffic through a second proxy.

A free domain analysis tool. This very light weight script gives you the ability to provide your visitors with a great website checking service. All you have to do is upload a few files to your web server and off you go. The script has been coded so that it can be integrated into existing websites with ease.

• $9.99

A bandwidth meter that logs to a MySQL database for admin viewing.

• Free

Monitor multiple web or TCP servers. Receive notification by email or pager if any server can't be reached a number of times in a row. It can reboot your NT server or run a batch file or program for you.

• $69

This script lets you run your own expired and deleted domains website. It includes the ability to check for page rank, Alexa rank, Google back and Yahoo back links, and whether or not it is indexed and listed with Google, Yahoo, Bing and Dmoz.

• $80

This webmaster portal script enables you to launch a webmaster site within minutes. It comes pre-loaded with ten different tools such as an advanced drag and drop banner generator, Google pagerank checker, online signature generator, keyword suggestion tool and more.

• $175

This tool will help you monitor website content and can send an alert email to you.

• $29

This program will compare your website's load speed in milliseconds, against Yahoo and Google.

• Free

Setup your own dynamic DNS service on any server running BIND v8. This script is fully compatible with the dyndns.org API, so you can use most dyndns.org-compatible update clients to keep your IP address up-to-date.

• Free

This software scans all 2, 3, 4 and 5 letter .com and .net domains for their availability. It gives you their expiry date if they are already registered. Available domains are highlighted so that you can identify them from the list.

• $10

Manage and track your domains easily and without hassle. Requires Ioncube Loader.

• $19

PHP Copyright automatically updates the copyright notice in your website's footer.

• Free

A backend solution for domain name registration websites. It is well tested under a wide variety of situations. It was built from the ground up to be highly configurable in order to let you run a fully featured (sub) domain name registration.

• €2500