Websites online right now
We have recently exceeded 1 billion websites (watch the total increase), a milestone which, according to our estimates, has been reached in September of 2014. Given the monthly fluctuations in the count of inactive websites, the 1 billion mark will need to be confirmed in the months ahead. From 1 website in 1991 to 1 billion in 2014, the chart and table below show the total number of websites by year throughout history:
By "Website" we mean unique hostname (a name which can be resolved, using a name server, into an IP Address).
It must be noted that around 75% of websites today are not active, but parked domains or similar. 
|Websites||Change||Internet Users||Users per|
|1995||23,500||758%||44,838,900||1,908||Altavista, Amazon, AuctionWeb|
|Aug. 1991||1||World Wide Web Project|
Source: NetCraft and Internet Live Stats (elaboration of data by Matthew Gray of MIT and Hobbes' Internet Timeline and Pingdom)
Periodic drops in the total count can depend on various factors, including an improvement in NetCraft's handling of wildcard hostnames. For example, in August 2012, over 40 million hostnames on only 242 IP addresses were removed from the Survey.