March 2021 Web Server Survey

By doing March 2021 Survey from which we received responses 1,187,527,949 Websites about 263,355,616 unique domains and 10,847,682 Computer facing the internet. This equates to a loss of 16,724,462 sites but a gain of 313,561 domains and 81,076 computers.

nginx won 3.7 million websites this month and holds a 35.3% market share with a total of 419.6 million websites. In contrast, Apache has lost 8.5 million websites, making up just over a quarter of all websites at 308.5 million. Microsoft lost 9.6% (-7.5 million) of its websites this month, relegating third place to OpenResty, which in turn gained 1.2 million (+ 1.6%).

OpenResty is a web platform based on nginx that integrates Lua-based modules and has been the third largest server after domains for several months. Even so, it still lags behind the competition in terms of web computing at just 105,800 computers compared to Microsoft’s 1.4 million.

nginx, Google, OpenResty, and LiteSpeed ​​have acquired a significant number of domains this month. nginx won just over a million domains (+ 1.3%), while Google, OpenResty and LiteSpeed ​​won 250,000 (+ 11.0%), 212,000 (+ 0.6%) and 68,600 (+ 1.3%) won. Nginx’s domain growth came mostly from Freenom with 1.3 million domains using the server, while OpenResty’s growth was due to increased usage in Google Cloud. Meanwhile, Apache and Microsoft lost -540,000 (-0.8%) and -585,000 (-3.7%) domains, respectively.

nginx and Apache both gained web-facing computers this month, with nginx gaining a whopping 74,000 additional computers and a market share gain of 0.4 percentage points and Apache a profit of 3,300 – despite gaining 0.2 percentage points of market share due to the comparatively higher growth of nginx have lost. Other vendors also lost market share, with Microsoft losing 24,200 computers (-0.3 percentage points) and OpenResty just over 200 computers (-0.01 percentage points) despite gains in websites and domains.

When looking at which web servers serve the millions of busiest websites, the number of Cloudflare companies grew by 3,200 websites this month (+0.3 percentage points). Cloudflare’s growth came at the expense of Nginx, which lost the most with 1,570 fewer websites (-0.2 pages), and Apache and Microsoft, which both lost around 250 websites. The top spot remains hotly contested between Apache and Nginx – Apache leads, but less than 2.5 percentage points separate the two.

Other providers and hosting news

  • A major fire in OVH’s Strasbourg data center resulted in around 3.6 million websites on 464,000 domains being taken offline at the beginning of March. While this was not captured in this month’s web server survey, additional research by Netcraft found that nearly 20% of the IP addresses assigned to OVH became unresponsive during the incident. One of the four data centers on site, SBG2, was completely destroyed and OVH is now deploying thousands of new servers to replace the lost ones.
  • Windows Server 2022 is now in preview and will be generally available later in 2021. The features added in this release focus on adding new layers of security, tighter integration with Microsoft’s Azure platform, and improving Windows containers. The current major version, Windows Server 2019, was made generally available almost two and a half years ago in October 2018.
  • nginx version 1.19.8 and njs version 0.5.2 were released on march 9th. Both updates add minor new features and bug fixes.
  • OpenLiteSpeed, the open source variant of LiteSpeed ​​Enterprise, received several updates through February and March. Versions 1.5.12, 1.6.20 and 1.7.9 mainly contained security updates and bug fixes.
  • Apache Tomcat has been updated to versions 9.0.44 and 10.0.4. Both updates contain a number of fixes, including improvements to asynchronous error handling.

Web server market share

developer February 2021 percent March 2021 percent change
Nginx 415.900.479 34.54% 419.637.923 35.34% 0.80
Apache 316,992,638 26.32% 308,509,042 25.98% -0.34
OpenResty 76,623,440 6.36% 77,819,490 6.55% 0.19
Microsoft 78,331,379 6.50% 70,826,342 5.96% -0.54

Market share of web servers for active websites

developer February 2021 percent March 2021 percent change
Apache 50,562,247 25.48% 50,506,614 25.38% -0.10
Nginx 39,371,901 19.84% 40,111,872 20.15% 0.31
Google 19,538,140 9.85% 20,086,396 10.09% 0.25
Cloudflare 17,699,568 8.92% 16,932,600 8.51% -0.41

See Active Sites for more information

Web server market share for the millions of most visited websites

developer February 2021 percent March 2021 percent change
Apache 255.765 25.58% 255.542 25.55% -0.02
Nginx 232.133 23.21% 230,565 23.06% -0.16
Cloudflare 161.038 16.10% 164.235 16.42% 0.32
Microsoft 68,746 6.87% 68,493 6.85% -0.03

Market share of web servers for computers

developer February 2021 percent March 2021 percent change
Nginx 3,763,569 34.96% 3,837,524 35.38% 0.42
Apache 3,521,831 32.71% 3,525,111 32.50% -0.21
Microsoft 1,467,939 13.63% 1,443,725 13.31% -0.33

Market share of web servers for domains

developer February 2021 percent March 2021 percent change
Nginx 79,977,570 30.40% 80.999.556 30.76% 0.35
Apache 69.361.703 26.37% 68,822,067 26.13% -0.24
OpenResty 37,823,957 14.38% 38.035.992 14.44% 0.06
Cloudflare 18,726,697 7.12% 18,657,944 7.08% -0.03

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