Undertow

Category - Web Servers

Undertow is a high performance web server written in java, providing both blocking and non-blocking APIs based on NIO.


We have discovered  7,128 live websites   that are using Undertow.

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Technology usage statistics

Websites using Undertow7,128 websites
Most popular in the country United States
Market position in Web Servers#35
Market share in Web Servers<0.1%
Most popular version8

Technology adoption

Recent changes in Undertow usage. (See Undertow Usage Changes report)
Websites that added Undertow+363
Websites that dropped Undertow-122
Websites that changed version of Undertow3

Undertow usage distribution by website rank

The correlation between utilization of Undertow technology and the relative popularity of websites

Market Share

Undertow market share within the Web Servers category



Geographical Distribution

Technology usage distribution by websites across the globe.



Websites utilizing Undertow

Top websites that use Undertow
DomainCountryRankContacts
eventbee.com United States16,174
www.eventbee.com United States16,174
loadus.exelator.com United States18,135
epp.genproc.gov.ru Russia22,033
www.diva-portal.org Sweden28,101
www.selfieshow.app Germany31,866
See full domain list

Alternative Technologies


Apache: Total 24,381,942 domains found using Apache
Nginx: Total 21,390,486 domains found using Nginx
Cloudflare Server: Total 6,909,080 domains found using Cloudflare Server
OpenResty: Total 4,193,168 domains found using OpenResty
LiteSpeed: Total 4,066,681 domains found using LiteSpeed
IIS: Total 2,897,461 domains found using IIS
Pepyaka: Total 1,801,043 domains found using Pepyaka
Microsoft HTTPAPI: Total 626,273 domains found using Microsoft HTTPAPI
GHS: Total 276,272 domains found using GHS
Cowboy: Total 256,873 domains found using Cowboy




Major Versions

  • 2.xx (1 subversions, 3 domains)
  • 7.xx (1 subversions, 1 domains)
  • 8.xx (1 subversions, 18 domains)
  • 9.xx (1 subversions, 4 domains)
  • 10.xx (1 subversions, 11 domains)
  • 11.xx (1 subversions, 1 domains)
  • 12.xx (1 subversions, 6 domains)