November 2018 Web Server Survey

In the November 2018 survey we received responses from 1,652,185,816 sites, 226,752,928 unique domains, and 8,048,899 web-facing computers. This reflects a loss of 21.3 million sites, but a gain of 1.7 million domains and 121 thousand web-facing computers.

The largest contributor to the increase in domains this month came from sites running on Microsoft server software, with an additional 1.18 million domains. The growth was concentrated at GoDaddy on domains running IIS 7.5.x, which took up 1.16 million of the increase. In addition to newly detected IIS domains, and a movement of some domains from nginx, many existing domains running previously unknown IIS versions also reported as IIS 7.5.x this month, resulting in the total number of domains for this version almost doubling to reach 12.7 million. This makes IIS 7.5.x the most common version seen by the survey, 2.7 million domains ahead of the newer 8.5.x version in second place, which first saw release in 2013. Despite the large gain in domains, Microsoft experienced losses in most other metrics, including a significant loss of 3.14 million active sites. Many of the domains gained at GoDaddy are likely to be holding pages, contributing only a small increase to the number of IIS active sites hosted at the company.

nginx experienced the largest loss in domains this month of 560 thousand, largely caused by a drop of just over 1 million domains at GoDaddy. Nginx has been experiencing a steady rise in market share by domains for many years, however this has now remained relatively static for the last 6-months at 23%. nginx remains just under 3 percentage points behind Microsoft’s 26% market share. Meanwhile though, nginx has continued to show strong growth in web-facing computers, with the largest increase this month of 51 thousand. Here its steady market share increases have shown no such pause, and it holds almost 28% of the market. Apache and Microsoft followed some way behind in web-facing computer gains, with increases of 13 thousand and 12 thousand, both experiencing small losses in market share as a result.

Total number of websites

Web server market share

DeveloperOctober 2018PercentNovember 2018PercentChange
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Most Reliable Hosting Company Sites in October 2018

Rank Performance Graph OS Outage
DNS Connect First
1 Inc Linux 0:00:00 0.004 0.481 0.005 0.017 0.018
2 Swishmail FreeBSD 0:00:00 0.004 0.248 0.084 0.167 0.170
3 Netcetera Linux 0:00:00 0.004 0.199 0.085 0.175 0.175
4 Linux 0:00:00 0.004 0.306 0.091 0.182 0.182
5 vXtream Ltd Linux 0:00:00 0.008 0.322 0.072 0.145 0.145
6 Linux 0:00:00 0.008 0.396 0.080 0.236 0.236
7 Rackspace Linux 0:00:00 0.013 0.712 0.006 0.014 0.015
8 Bigstep Linux 0:00:00 0.017 0.245 0.072 0.147 0.147
9 Webair Linux 0:00:00 0.017 0.355 0.080 0.161 0.162
10 ServerStack Linux 0:00:00 0.017 0.251 0.091 0.181 0.181

See full table

In October 2018, GoDaddy had the most reliable hosting company site, with a single failed request and the fastest average connection time of 5ms. GoDaddy's site has now appeared in the top 10 six times so far in 2018, and has topped the rankings three times in 2018. The Website Builder tool offered by GoDaddy is widely used, as seen in Netcraft's September Web Server Survey, and provides customers with a simple way to create a web presence.

Swishmail, Netcetera and dinahosting ranked second, third and fourth place, with their sites also only experiencing a single failed request. The tie is broken by their average connection times: 84ms, 85ms and 91ms. Swishmail is a provider of a range of email and web hosting services and returns to the top 10 for the 7th time in 2018.

Following in fifth and sixth place are vXtream Ltd and, whose sites both failed to respond to two requests. Rackspace had the second fastest average connection time of 6ms but appears 7th in October due to 3 failed requests. Like GoDaddy, Rackspace has appeared in Netcraft's top 10 most reliable hosting company sites six times in 2018.

Linux continues to dominate the web server market as the most popular operating system and this is reflected in 9 of the top 10 hosting company sites being served by web-servers running Linux. FreeBSD also makes an appearance in second place.

Netcraft measures and makes available the response times of around thirty leading hosting providers' sites. The performance measurements are made at fifteen minute intervals from separate points around the internet, and averages are calculated over the immediately preceding 24 hour period.

From a customer's point of view, the percentage of failed requests is more pertinent than outages on hosting companies' own sites, as this gives a pointer to reliability of routing, and this is why we choose to rank our table by fewest failed requests, rather than shortest periods of outage. In the event the number of failed requests are equal then sites are ranked by average connection times.

Information on the measurement process and current measurements is available.