May 2023 Web Server Survey

In the May 2023 survey we received responses from 1,109,384,426 sites
across 271,534,718 domains and 12,037,194 web-facing computers. This
reflects a loss of 6.0 million sites, 976,941 domains, and 52,213 web-facing
computers.

Microsoft saw the most significant change across all three metrics; it lost
495,099 (-1.88%) sites, 210,670 domains (-2.93%) and 12,303 computers (-1.02%).
Microsoft now accounts for 2.33% of sites and 2.57% of domains seen by Netcraft,
down by 0.03pp and 0.07pp respectively.

LiteSpeed gained 202,283 domains (+2.16%) this month, which coincided with an
increase in its total number of websites, up by 388,293 (+0.69%). Meanwhile,
OpenResty also grew by 325,880 (+0.38%) sites, but lost 349,276
domains (-0.91%).

nginx saw a large loss of 5.7 million sites (-1.94%), 1.0 million domains
(-1.36%) and 33,970 computers (-0.72%). Conversely, Cloudflare gained
1.1 million sites (+1.03%) and 203,491 domains (+0.79%). Despite
this, nginx has a larger share (25.86% of sites compared to Cloudflare’s 9.51%);
however, Cloudflare still has the upper hand within the top million sites.

In the top million sites, Cloudflare retained its first place position,
gaining 0.38pp on its leading market share of 22.07%. Both nginx and Apache saw
losses, with their market shares decreasing by 0.12pp to 21.18% and 0.04pp to
21.16% respectively, along with OpenResty’s loss of 0.02pp down to 1.00%.
Meanwhile, LiteSpeed, Google and Microsoft all saw small increases in their
respective market shares, with Microsoft gaining 0.06pp, LiteSpeed gaining
0.05pp, and Google gaining just 0.003pp.

With respect to the number of web-facing computers, nginx, Apache and Microsoft
all saw decreases of 0.11pp, 0.22pp and 0.06pp of their respective market
shares. nginx still holds the largest market share of 38.77% (4.6 million), with
Apache in second place with a 26.80% share (3.2 million computers), and
Microsoft in third place with a 9.99% share (1.2 million computers).

Vendor news

• OpenResty 1.21.4.2 RC1 was
  released on 17th April, which includes updates to many Lua modules.
• nginx unit 1.30.0, a
  dynamic web application server, was released on 10th May. It includes new
  features, such as URI rewriting and more sophisticated logging. It has also
  been given an official status on Docker Hub.
• Lighttpd 1.4.70 was released on
  10th May, which includes speeding up of CGI spawning, adding experimental
  support for running on Windows natively, and some HTTP/2 improvements.
• Cloudflare has updated its Terms of Service,
  to make the restrictions surrounding serving video and other large files with
  its free CDN plan clearer.
• nginx 1.25.0 was released on 23rd May,
  adding experimental support for HTTP/3.

For more information see Active Sites