To use TraceBullet, simply select desired test, enter required data and click on “Submit this Bullet!” button. The result will be presented on the same page.

Features:

• Combines 6 different net testing tools on one page. These tools are:
  - Hostname to IP Check
  - Port Check
  - Ping Request
  - Page Contents Check
  - Sent Headers Check
  - WHOIS Check
• Free, quick and easy to use.
• Similar sites: Test Everything, ServerCheck and You Get Signal.

Check out TraceBullet @ www.tracebullet.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• ServerCheck: Free Website Server Check Tools
• AbouThiSite: See WhoIS, Server Location, IP Neighbors for any Site
• Suggest.Name: The Web 2.0 Domain Name Generator
• SpyOnWeb: See All Websites That Belong to the Same Owner
• QuarkBase: Get Almost Every Information About A Website

You can also also look up a physical location of a computer by its IP address, trace an email to its source and see visually on a map the path between two IP addresses using the Visual Traceroute.

Features:

• Instantly get your IP address.
• View your current physical location on a map.
• Look up the location of any computer by its IP address.
• Trace an email to its source by providing it’s full headers.
• See the path between two IP addresses on a map with Visual Traceroute.
• Similar websites: ServerCheck, You Get Signal and MyIPNeighbors.

Check out WhatIsMyIpAddress @ www.whatismyipaddress.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• WIKAY: See How Any Website Can Access Your Browsing History
• WidExplorer: Navigate Multiple Websites Simultaneously
• WhatBlocked: See Which Popular Sites Are Blocked in China
• WebMynd : Backup For Your Online Browsing
• WatchThatPage: Monitor Web Page Changes & Get Alerts

1. Website Not Working?

Checks if a server is down. You just need to enter the URL to check if the website is currently online/up or not.

2. Domain IP Lookup

This utility can be used to find out the IP address for ny given domain. To find out the IP address of the server on which the site is hosted you only need to enter the domain name.

3. Reverse IP Lookup

When you enter a domain name or an IP address, this tool displays all the other domains / websites hosted on the same server. It’s a good way for website owners to check if your ISP is overselling or if there are high traffic sites on the same server as you.

Features:

• Quick and simple online server check tools
• Check out all the domains / websites hosted on the same server.
• Check if your website is not working or a server is down.
• Find out the IP address of the server on which a website is hosted.
• Free and easy to use. No registration required.
• Similar tools: You Get Signal and MyIPNeighbors.

Check out Server Check @ www.servercheck.me (by Srikanth AD from The Next Web )

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• TraceBullet: Quick Server, WhoIS, IP & Port Testing
• AbouThiSite: See WhoIS, Server Location, IP Neighbors for any Site
• Suggest.Name: The Web 2.0 Domain Name Generator
• SpyOnWeb: See All Websites That Belong to the Same Owner
• QuarkBase: Get Almost Every Information About A Website

Features:

• Quickly lookup general info about any website.
• Website owner info, server location on the map, website snapshot, IP neighborhood
• Lookup as many websites as you like.
• No-sign up or registration needed.

Check out AbouThiSite @ www.abouthisite.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• TraceBullet: Quick Server, WhoIS, IP & Port Testing
• ServerCheck: Free Website Server Check Tools
• DomainTools: Six Useful Domain Tools
• Dataopedia: All In One Website Statistics Web Service
• Suggest.Name: The Web 2.0 Domain Name Generator

Features:

• Leave text messages to any IP address.
• Send as many messages as you like.
• Find out what’s your IP address.
• No sign-up or registration needed.

I am not really sure how someone can benefit from this, if you have any ideas please share them in comments.

Check out IP Message @ www.ipmessage.net (via technospot.net)

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• WhatIsMyIPAddress: Find Out Your IP Address
• TraceBullet: Quick Server, WhoIS, IP & Port Testing
• ServerCheck: Free Website Server Check Tools
• AbouThiSite: See WhoIS, Server Location, IP Neighbors for any Site