VeriSign, Inc. is an American company based in Reston, Virginia, United States that provides domain name registry services and internet security. Verisign operates two of the Internet's thirteen root nameservers. Verisign also offers a range of security services, including managed DNS, distributed denial-of-service (DDoS) attack mitigation and cyber threat reporting. The company was founded in 1995 and is headquartered in Reston, Virginia.