June 2018 Web Server Survey

In the June 2018 survey we received responses from 1,630,322,579 sites, 217,776,658 unique domains, and 7,614,764 web-facing computers. This reflects a gain of 45 million sites and 162,000 web-facing computers, but a loss of 98,800 domains.

Apache currently leads by most metrics, with the largest market share of domains (35.23%), active sites (41.13%), computers (40.28%), and top million sites (35.54%). However, it continues to gradually decline in market share, losing out to continued growth elsewhere, particularly by nginx. Most of Apache’s figures fell this month, with the exception of a small 35k (+1.16%) rise in web-facing computers. Despite this gain in web-facing computers, its share fell slightly, by 0.4 percentage points.

The only metric where Apache does not retain the lead is web sites: Microsoft’s server software has held the lead since July 2016. Although Microsoft web servers now account for 601 million sites, or 36.9%, relatively few of these are active sites. Microsoft servers account for 11.8 million active sites, a 6.62% share of the entire active site market, placing it behind both Apache and nginx. Internet Information Services (IIS) accounts for 97.8% of all domains using Microsoft server products, with Microsoft’s light-weight HTTPAPI making up just 2.2% of Microsoft’s domains. Only 8.0% of the web-facing computers running Microsoft IIS run the latest version available, IIS 10.0, released in October 2016 as part of Windows Server 2016. A greater proportion, 10.1%, are still running IIS 6.0, which reached end-of-life along with Windows Server 2003 almost 3 years ago.

nginx continues to rise in popularity, growing faster than its Apache and Microsoft competitors in all metrics except web sites. Although nginx’s 23.35% domain share is still behind Microsoft’s 25.73%, its continued growth has it on track to overtake Microsoft in a few months, and potentially even bring Apache within its sights in a couple of years. nginx holds second place in terms of active sites (21.64%), computers (25.84%), and the number of sites within the top one million (24.68%). This month, nginx had the largest gains in all metrics with the exception of overall web sites. Apart from its original distribution, nginx also comes in two other popular variants: Openresty, which is based on an nginx core with additional Lua-based modules, was seen on 2.0 million domains this month; and Tengine, an nginx fork maintained by Chinese ecommerce site Taobao, was seen on 1.2 million domains.

The LiteSpeed web server, which currently accounts for 1.27% of all domains, has also been slowly but steadily gaining adopters. It experienced the 3rd largest increase in domains this month, gaining 125k, giving it a larger relative increase than Apache, Microsoft, or nginx servers. LiteSpeed has a slightly higher market share of 1.50% of the top million sites and 1.86% of all active sites.

Total number of websites

Web server market share

Developer May 2018 Percent June 2018 Percent Change
Microsoft 518,826,524 32.73% 601,258,605 36.88% 4.14
Apache 396,463,723 25.01% 361,165,378 22.15% -2.86
nginx 359,163,599 22.66% 336,529,382 20.64% -2.02
Google 22,427,752 1.42% 22,946,307 1.41% -0.01

Web server market share for active sites

Developer May 2018 Percent June 2018 Percent Change
Apache 73,936,582 42.04% 73,047,202 41.13% -0.91
nginx 37,427,068 21.28% 38,430,049 21.64% 0.36
Google 14,279,471 8.12% 14,525,401 8.18% 0.06
Microsoft 11,897,685 6.76% 11,757,813 6.62% -0.14

For more information see Active Sites

Web server market share for top million busiest sites

Developer May 2018 Percent June 2018 Percent Change
Apache 360,234 36.02% 355,382 35.54% -0.49
nginx 242,826 24.28% 246,812 24.68% 0.40
Microsoft 92,776 9.28% 93,092 9.31% 0.03
LiteSpeed 14,777 1.48% 15,019 1.50% 0.02
Web server market share for computers

Developer May 2018 Percent June 2018 Percent Change
Apache 3,032,131 40.69% 3,067,313 40.28% -0.40
nginx 1,887,507 25.33% 1,967,886 25.84% 0.52
Microsoft 1,525,059 20.46% 1,543,179 20.27% -0.20
Web server market share for domains

Developer May 2018 Percent June 2018 Percent Change
Apache 77,830,157 35.72% 76,721,597 35.23% -0.49
Microsoft 56,785,102 26.06% 56,030,491 25.73% -0.33
nginx 49,440,862 22.69% 50,860,718 23.35% 0.66
Google 1,913,702 0.88% 1,909,658 0.88% -0.00