There are over 1 billion websites on the world wide web today. This milestone was first reached in September of 2014, as confirmed by NetCraft in its October 2014 Web Server Survey and first estimated and announced by Internet Live Stats (see the tweet from the inventor of the World Wide Web, Tim Berners-Lee).

The chart and table below show the total number of websites by year throughout history:

Year
(June)
Websites Change Internet Users Users per
Website
Websites launched
2015 863,105,652 -11% 3,185,996,155* 3.7
2014 968,882,453 44% 2,925,249,355 3.0
2013 672,985,183 -3% 2,756,198,420 4.1
2012 697,089,489 101% 2,518,453,530 3.6
2011 346,004,403 67% 2,282,955,130 6.6
2010 206,956,723 -13% 2,045,865,660 9.9 Pinterest
2009 238,027,855 38% 1,766,206,240 7.4
2008 172,338,726 41% 1,571,601,630 9.1 Dropbox
2007 121,892,559 43% 1,373,327,790 11.3 Tumblr
2006 85,507,314 32% 1,160,335,280 13.6 Twttr
2005 64,780,617 26% 1,027,580,990 16 YouTube, Reddit
2004 51,611,646 26% 910,060,180 18 Thefacebook, Flickr
2003 40,912,332 6% 778,555,680 19 WordPress, LinkedIn
2002 38,760,373 32% 662,663,600 17
2001 29,254,370 71% 500,609,240 17 Wikipedia
2000 17,087,182 438% 413,425,190 24 Baidu
1999 3,177,453 32% 280,866,670 88 PayPal
1998 2,410,067 116% 188,023,930 78 Google
1997 1,117,255 334% 120,758,310 108 Yandex
1996 257,601 996% 77,433,860 301
1995 23,500 758% 44,838,900 1,908 Altavista, Amazon, AuctionWeb
1994 2,738 2006% 25,454,590 9,297 Yahoo
1993 130 1200% 14,161,570 108,935
1992 10 900%
Aug. 1991 1 World Wide Web Project
Source: NetCraft and Internet Live Stats