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

DeveloperMay 2018PercentJune 2018PercentChange
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Most Reliable Hosting Company Sites in May 2018

Rank Performance Graph OS Outage
DNS Connect First
1 Netcetera Linux 0:00:00 0.000 0.221 0.089 0.178 0.178
2 One.com Linux 0:00:00 0.004 0.376 0.060 0.176 0.176
3 ServerStack Linux 0:00:00 0.004 0.275 0.094 0.187 0.187
4 Pair Networks FreeBSD 0:00:00 0.004 0.414 0.094 0.188 0.188
5 www.viawest.com Linux 0:00:00 0.008 0.503 0.009 0.261 0.262
6 Rackspace Linux 0:00:00 0.008 0.788 0.009 0.020 0.021
7 www.choopa.com Linux 0:00:00 0.013 0.328 0.009 0.226 0.226
8 EveryCity SmartOS 0:00:00 0.013 0.252 0.075 0.346 0.347
9 vXtream Ltd Linux 0:00:00 0.013 0.260 0.077 0.154 0.154
10 Webair Linux 0:00:00 0.013 0.367 0.083 0.164 0.165

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Netcetera had the most reliable hosting company website in May 2018, being the only site to successfully respond to all of Netcraft's requests. Netcetera provides carbon-neutral hosting solutions from its data centre in the Isle of Man, and has managed to maintain a 99.98% uptime over the last 10 years.

There were three hosting company websites with only one failed request in May. Out of these, One.com had the fastest average connection time of 60ms, granting it second place. Founded in 2002, the company was established in Denmark, and offers a variety of internet services including a no-code website builder, 1-click WordPress installations, domain registrations, email hosting, and Office 365. Third place was very close, with ServerStack claiming the position with an average connection time of 93.5ms—just half a millisecond faster than Pair Networks in fourth place. ServerStack has maintained an impressive 99.98% uptime since Netcraft started monitoring its website 5 years ago.

ViaWest, Rackspace, and Choopa all had very fast average connection times of around 9ms, but only achieved 5th, 6th, and 7th place respectively due to each having failed to respond to two or three requests.

Both EveryCity and vXtream's websites have managed to achieve a top ten position in every month of 2018 so far.

Linux was the operating system of choice on 8 out of the top 10 most reliable hosting company sites in May, with FreeBSD and SmartOS each making a single appearance.

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.