GUID.org is an Internet service that assigns anonymous random user IDs to web
browsers. These anonymous IDs can then be used by other web sites for many
purposes. For example, a site may use your GUID to recognize you when you
return. GUID.org does not collect or store any information about users
- see our privacy policy. The random anonymous
user IDs created by GUID.org are stored in cookies on your browser - see
our cookie definition for more info.
You may "opt out" and tell GUID.org to remove
your GUID. You may also see your GUID, if you
are curious about what they look like.
If you are a web site and would like to use GUIDs, please read our usage
instructions. The GUID.org technology is fairly straightforward, but you can
still read about how it works. You
can also read a little about our history.
We welcome feedback about this site and the service we provide.
Please send email to feedback@guid.org.