September 2018 Web Server Survey

In the September 2018 survey we received responses from 1,642,339,233 sites, 222,628,534 unique domains, and 7,785,976 web-facing computers. This reflects gains of 1.1 million unique domains and 28,000 web-facing computers, but a loss of 19 million sites.

Despite the overall increase in number of unique domains this month, all of the major web server vendors experienced losses. The largest gains in September came from lesser known server software — Pepyaka increased by just over 2 million domains, and DPS increased by 893k domains — with both returning to previously seen usage levels after a couple of months of near absence from the survey.

DPS (Data Protection Server), currently the 11th largest server by domains, is used exclusively by GoDaddy to host customer sites that have been created with its Website Builder tool. Last month saw a temporary swing on a single GoDaddy IP Address from DPS to Microsoft, accounting for both last month's Microsoft gains, and this month's loss.

Pepyaka, now the 7th largest server by domains, was last seen in the survey in large volumes in June 2018, being primarily used by Wix web development platform on Amazon AWS infrastructure. Wix has been a long-time user of nginx, and originally moved all user traffic to the commercial NGINX Plus product to future-proof its load balancing needs. The version numbering used by Pepyaka (currently 1.13.10) combined with Wix's previous usage of nginx suggests that it could be based on the March 2018 mainline version of nginx. The loss of Pepyaka from the survey two months ago coincided with Wix moving its customers' sites from Amazon to Cogent Communications. The return of Pepyaka in the September survey coincides with a similar movement of its customers' sites from Cogent Communications to a combination of Wix's own and Google's infrastructure.

In the web-facing computer market, nginx was the only major web server vendor to experience a gain this month, with an increase of over 41,000 (+2%). Unusually both Apache and Microsoft saw a small loss in absolute numbers of web-facing computers this month, dropping 4,900 and 9,500, in addition to their on-going gradual declines in market share. This has resulted in nginx's market share rising to 27.0%.

Total number of websites

Web server market share

DeveloperAugust 2018PercentSeptember 2018PercentChange
Microsoft675,366,73340.65%585,892,92735.67%-4.97
Apache336,937,56820.28%384,521,18923.41%3.13
nginx300,644,22218.10%319,330,26319.44%1.35
Google23,143,6101.39%22,210,0931.35%-0.04
Web server market share for active sites

DeveloperAugust 2018PercentSeptember 2018PercentChange
Apache71,516,29038.68%70,764,82138.61%-0.07
nginx41,922,17722.67%39,857,16821.75%-0.93
Google14,692,7607.95%13,980,0557.63%-0.32
Microsoft11,566,5896.26%11,293,0476.16%-0.09

For more information see Active Sites

Web server market share for top million busiest sites

DeveloperAugust 2018PercentSeptember 2018PercentChange
Apache347,97834.80%340,67034.07%-0.73
nginx250,30625.03%254,52325.45%0.42
Microsoft94,2289.42%95,6809.57%0.15
LiteSpeed15,0451.50%15,3401.53%0.03
Web server market share for computers

DeveloperAugust 2018PercentSeptember 2018PercentChange
Apache3,079,60739.69%3,074,72639.49%-0.20
nginx2,061,16326.57%2,102,53727.00%0.44
Microsoft1,534,81919.78%1,525,35319.59%-0.19
Web server market share for domains

DeveloperAugust 2018PercentSeptember 2018PercentChange
Apache75,298,81833.99%74,631,15933.52%-0.47
Microsoft58,394,56326.36%57,334,24425.75%-0.61
nginx50,940,63923.00%50,359,98822.62%-0.37
Google2,013,8880.91%2,014,8850.91%-0.00