February 2018 Web Server Survey

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In the February 2018 survey we received responses from 1,838,596,056 sites across 214,036,874 unique domain names and 7,290,968 web-facing computers. This reflects a gain of 63,000 computers, and nearly a million additional domains. Overall hostname growth was 33 million, and the number of active sites grew by 9.3 million.

Microsoft dominated this month's domain growth, with an extra 1.1 million domains (+2.0%) taking its market share up by 0.41 percentage points to 26.5%, while Apache lost 115,000 domains. Microsoft also saw the largest hostname growth, with an additional 59 million sites taking its leading hostname share up by 2.65 points to 34.5%.

After excelling in all growth metrics last month, nginx did not sweep the board this time. Although its computer growth continued to be strong – gaining 44,000 this month – it lost 11.2 million hostnames globally. The primary cause of this was more than 15 million sites switching from nginx to Apache. Most of these sites were previously hosted by Raksmart in China, but are now hosted by Data Foundry in the United States.

All four of the largest major vendors – Apache, nginx, Google and Microsoft – gained active sites this month. Apache made the largest gain of 2.1 million, but this was not enough to prevent its active sites share falling by 1.1 points to 42.7%. Nonetheless, Apache continues to lead with more than twice as many active sites as its closest competitor, nginx.

Cloudflare-nginx migration underway


For several years, every edge machine in Cloudflare's content delivery network (CDN) exhibited the Server: cloudflare-nginx HTTP response header. This reflected the fact that its custom software stack was based on nginx – but this month's survey saw a vast swathe of websites switching to a new Server: cloudflare header.

Although nginx remains part of Cloudflare's stack, it plays less of a role than it once did. The code that handles HTTP requests on Cloudflare's machines now goes far beyond the capabilities of nginx alone, and Cloudflare also hints that it will most likely end up writing its own caching software instead of using nginx.

In line with Cloudflare's reasoning, Netcraft's survey treats the new cloudflare server as a distinct product to nginx, and this has taken a chunk out of nginx's share in the top million sites. The new cloudflare server already accounts for 5.2% of the top million sites, and this share will undoubtedly increase next month.

The transition to the new cloudflare server banner started on 18 December 2017, and the February 2018 survey found nearly 60% of Cloudflare's sites using the new banner. It is likely that they will all use the new banner by next month's survey.

Other web server news


The developers of nginx have added support for HTTP/2 Server Push, which is likely to be made available in the next release. This feature allows web servers to send resources such as images and stylesheets before they are requested by the browser, which can make some webpages load faster.

After coming to prominence last month, DPS is now the 9th largest server by domains. It continues to be used almost exclusively by GoDaddy to host sites created with its Website Builder tool, and it is still being regularly updated. The current version in use at the time of writing is DPS 1.2.1, whereas a month ago it was 1.1.20.

OpenLiteSpeed 1.5.0 RC1 was released on 2 February, adding new Multi-Thread APIs and a module developer guide. This followed the 10 January release of 1.4.29, which is currently the latest stable version of the freely available open source server. Just over 2.5 million domains are currently using OpenLiteSpeed or the commercially available LiteSpeed Web Server product. Both products use the same LiteSpeed server banner and do not reveal version numbers.

Finally, NGINX Unit saw a few new releases since the last survey. NGINX Unit 0.4 was released on 15 January. This was the first release of the lightweight web application server to be compatible with DragonFly BSD, but it was mostly a bugfix release that eliminated some significant regressions in the previous version. NGINX Unit 0.5 was then released on 8 February, adding a Perl application module that allows it to run applications like Bugzilla; however, this release was not announced, as it contained a serious regression that could cause the main process to die. This was rectified in NGINX Unit 0.6, which was announced on 9 February.





DeveloperJanuary 2018PercentFebruary 2018PercentChange
Microsoft​
575,026,64831.85%634,359,41934.50%2.65
Apache​
491,259,91827.21%504,701,56027.45%0.24
nginx​
458,386,42325.39%447,224,45624.32%-1.07
Google​
21,657,7961.20%22,022,6331.20%-0.00​


DeveloperJanuary 2018PercentFebruary 2018PercentChange
Apache​
75,212,93243.82%77,324,93742.72%-1.10
nginx​
36,504,57721.27%38,239,25021.13%-0.14
Google​
13,270,3397.73%14,288,7367.89%0.16
Microsoft​
12,147,2787.08%12,301,6886.80%-0.28​

For more information see Active Sites



DeveloperJanuary 2018PercentFebruary 2018PercentChange
Apache​
370,29337.03%367,85936.79%-0.24
nginx​
304,62930.46%259,17825.92%-4.55
Microsoft​
95,6769.57%94,0639.41%-0.16
LiteSpeed​
13,9241.39%14,3921.44%0.05​


DeveloperJanuary 2018PercentFebruary 2018PercentChange
Apache​
3,039,74742.06%3,048,88541.82%-0.24
nginx​
1,701,48523.54%1,745,47623.94%0.40
Microsoft​
1,538,71721.29%1,536,50621.07%-0.21​


DeveloperJanuary 2018PercentFebruary 2018PercentChange
Apache​
81,428,53038.22%81,313,07537.99%-0.23
Microsoft​
55,588,83326.09%56,723,13326.50%0.41
nginx​
43,728,00720.52%43,968,52520.54%0.02
Google​
1,849,5540.87%1,863,7000.87%0.00​

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