Google's Public DNS, launched in December 2009, now churns through 70 billion requests a day. It's big overseas, the company said.
Google
(NASDAQ:GOOG)
said Feb. 14 that its public Domain Name System
(DNS) now processes over 70 billion requests each day, making it the largest
public DNS service in the world.
Domain Name
Systems translate computer host names into IP addresses, serving as phone
directories for the Web.
The DNS
translates alphabetical domain names humans associate with Websites online into
the numerical identifiers associated with networking equipment to locate and
address computers, tablets and other computing machines. For example,
www.google.com
becomes the IP address 74.125.45.100.
Millions of
users are accessing the Web several times a day, triggering multiple DNS
requests for streaming video, social networks and multiplayer online games.
This can bog down the Web page rendering process, which means users are sitting
at their computers, waiting to view Web pages.
To address this issue, Google launched its free Public DNS
in December 2009 as a bid to help Web pages load faster.
Google's public
DNS now gets nearly 70 percent of its traffic from outside the United States,
covering South America, Europe, Asia, Australia, India, Japan and Nigeria.
The
company is also active in trying to improve interaction
between public DNS systems. Google proposed edns-client-subnet as a way to more
efficiently pass data to content delivery networks, which will send users to
servers nearby.
For example,
if you look up www.google.com from a computer in New York, it may resolve to an
IP address pointing to a server in New York City, which will ideally improve
speed, latency and network utilization.
Members of the
Internet Engineering Task Force are discussing the standard proposal with which
companies, such as OpenDNS, Edgecast, Comodo and others, are experimenting as
part of the
Global Internet Speedup effort.
Public DNS is
one of several tacks Google is taking to "make the Web faster," as
one of the company's mantras has become.
Google is also experimenting with the Transmission Control
Protocol (TCP) to speed up data packets traversing the Internet
between computers and servers.
Google is
also testing the TCP Fast Open (TFO) approach, which it said reduces page
load time by 10 percent on average, and as much as 40 percent on other
instances.
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