13. Worldwide Use
• URL shortening services are also blocked in
other places in the world
• Used as a security tool to reveal the real URLs
behind shortened ones
14. What’s special about Untiny?
• 224 URL shortening services:
tiny.pl, tinyurl.com, is.gd, twurl.nl, bit.ly,
ping.fm, snurl.com, snipr.com, snipurl.com,
xrl.us, url.ie, wapurl.co.uk, url.co.uk,
rubyurl.com, minilien.com, easyurl.net, yep.it,
• Add-ons in different platforms
• Part of other applications
• High usability
• Provides two services:
– Extract Service which retrieves the original URLs.
– Services Service which lists the URL shortening
services that Untiny supports. Example:
24. What’s next?
• Trying to solve the spread of shortened URLs
– 400 million links by Tinyurl.com
– 70 million links by is.gd
– More than 1 billion links by shortening services
– Cli.gs lost part of their links