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Verisign runs two of the world's thirteen root servers: a.root-servers.net and j.root-servers.net, which are considered national IT assets by the U.S. Federal government.<ref name="factsheet"></ref> Verisign's average daily [[DNS|Domain Name System]] (DNS) query load for the first quarter of 2012 was 66 billion, with a peak of 74 billion; this represents a daily average increase of 4 percent over the previous quarter, while the peak decreased 37 percent.<ref>[http://www.marketwire.com/press-release/internet-grows-to-more-than-233-million-domain-names-in-the-first-quarter-of-2012-nasdaq-vrsn-1679901.htm Internet Grows to More than 233 million Domain names In The First Quarter]. Market Wire. Published 2012 July 13.</ref>

Verisign runs two of the world's thirteen root servers: a.root-servers.net and j.root-servers.net, which are considered national IT assets by the U.S. Federal government.<ref name="factsheet"></ref> During the fourth quarter of 2015, Verisign’s average daily Domain Name System (DNS) query load was approximately 123 billion queries per day across all TLDs operated by Verisign, with a peak of nearly 194 billion; this represents a daily average increase of 2.8 percent, while the peak decreased 67 percent.<ref>[http://www.businesswire.com/news/home/20160414006612/en/Internet-Grows-314-Million-Domain-Names-Fourth Business Wire: Internet Grows. Retrieved 17 Jun 2016.]</ref>

Verisign was also well-known for its authentication services, which included business authentication services such as implementing and operating secure networks, utilizing [[SSL]] protocol, encrypting transactions and communications, and user authentication services such as identity protection, fraud detection, and public key infrastructure.<ref>[http://finance.yahoo.com/q/pr?s=VRSN VRSN]. Yahoo! Finance.</ref> Those services were sold to [[Symantec]] in 2010.<ref name="reuters1">[http://www.reuters.com/article/2010/05/18/verisign-idUSN1816653320100518 UPDATE 2-Symantec close to buying VeriSign unit -- source]. Reuters. Published 2010 May 18.</ref> Prior to selling those services, Verisign had 3,000,000 certificates in operation, which made it the largest[[CA| Certificate Authority]] behind the encryption and authentication on the Internet.<ref>[http://en.wikipedia.org/wiki/Verisign Verisign, En.Wikipedia.org]</ref>

Verisign was also well-known for its authentication services, which included business authentication services such as implementing and operating secure networks, utilizing [[SSL]] protocol, encrypting transactions and communications, and user authentication services such as identity protection, fraud detection, and public key infrastructure.<ref>[http://finance.yahoo.com/q/pr?s=VRSN VRSN]. Yahoo! Finance.</ref> Those services were sold to [[Symantec]] in 2010.<ref name="reuters1">[http://www.reuters.com/article/2010/05/18/verisign-idUSN1816653320100518 UPDATE 2-Symantec close to buying VeriSign unit -- source]. Reuters. Published 2010 May 18.</ref> Prior to selling those services, Verisign had 3,000,000 certificates in operation, which made it the largest[[CA| Certificate Authority]] behind the encryption and authentication on the Internet.<ref>[http://en.wikipedia.org/wiki/Verisign Verisign, En.Wikipedia.org]</ref>