SEI-US.ORG - Whois Information

SEI-US U.S. Center of the Stockholm Environment Institute, an international research organization working on sustainable development. SEI-US is a research affiliate of Tufts University in Massachusetts. Sei-us.org

To improve performance of WHOIS service and to prevent its excessive high-volume use by a single source, we implemented a randomly generated Access Code that must be entered before running a WHOIS request.

The Access Code in the box is provided in graphics format. It has letters which are generated randomly and the symbol images are distorted. The distorted symbols cannot be read by computer programs which are used for mass-collect email addresses and any customer information. Only humans can read the distorted symbols and pass the access code. The Access Code improves performance of our services. It prevents excessive high-volume use by a single source.

The services that require Access Codes are: