Online Tools

Find your public IP:

http://whatismyip.com
http://myipaddress.com

performance check of Websites:
http://www.websiteoptimization.com/services/analyze/
http://alertra.com/spotcheck.php
http://www.siteuptime.com/users/quickcheck.php
http://host-tracker.com/

Black Listing Check for IP:
http://www.mxtoolbox.com/blacklists.aspx
http://www.au.sorbs.net/
http://dsbl.org/main
http://spamblock.outblaze.com/
http://www.spamcop.net/
http://www.spamhaus.org/index.lasso
http://njabl.org/lookup.html

PING test
http://network-tools.com/
http://www.websitepulse.com/help/testtools.ping-test.html
http://www.selfseo.com/ping_test.php
http://www.buildtelligence.com/online-ping-test.htm

Network Information of Website:
http://who.is/
http://checkdns.net/
http://intodns.com/

Zone NS Lookups
http://www.zoneedit.com/lookup.html

To visually Trace Route your IP
http://www.yougetsignal.com/tools/visual-tracert/

IP Location Tool
http://www.yougetsignal.com/tools/network-location/

To check Open port Of a connection
http://www.yougetsignal.com/tools/open-ports/

To check the websites residing in a Web server
http://www.yougetsignal.com/tools/web-sites-on-web-server/

Proxy-Links
http://anonymouse.org/anonwww.html
http://cowspy.com/
http://www.megaproxy.com/