In the May 2015 survey we received responses from 857,927,160 sites and 5,281,889 computers. The number of sites detected increased by nearly 9M this month after two consecutive months of losses. The number of web facing computers also increased by 54k.
Microsoft had the largest growth of web sites, gaining more than one percentage point of market share. Apache, the current leader with a market share of 39.26%, remained stable. Nginx, however, experienced the largest loss amongst major web server vendors and consequently saw a small loss in market share.
Nginx is performing well within the million busiest sites, and when counting the number of web facing computers using the web server — being responsible for the largest growth in each category. Nginx gained just over 2k of the million busiest sites, giving it a market share of 21.64%. Almost 16% of nginx's market share (or 3.4% of the top million sites) in the top million busiest sites is due to CloudFlare. While nginx is used to serve requests at CloudFlare, they may be proxied to backend servers running other web servers. Nginx contributed over half of the total net gain of web facing computers this month, with an increase of 27,500 computers.
DigitalOcean recently became the second largest hosting company by the number of web facing computers, overtaking OVH. Apache, with 48% of publicly visible DigitalOcean computers, is the leading web server, closely followed by nginx with 45.5%.
As the remaining IPv4 address space dwindles, companies are more often resorting to the emerging transfer market to acquire additional IPv4 ranges — for example, DigitalOcean recently appeared as one of the leading inbound receivers of IPv4 addresses from transfers within the RIPE NCC Service Region. With prices expected to increase as IPv4 becomes a more valuable asset, the adoption of IPv6 could accelerate. Netcraft currently finds 740k IPv6 addresses, an increase of 25% compared to the same time last year.
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