Server Usage Distribution in the Top 100k Sites

Distribution for websites using Server technologies

Technology	Websites	%
IPv6	61,379	61.38
Ubuntu	12,824	12.82
Envoy	10,369	10.37
OpenSSL	7,415	7.41
Debian	4,446	4.45
CentOS	3,814	3.81
GitHub Hosting	2,832	2.83
Parallels Plesk Panel	2,509	2.51
QUIC	2,431	2.43
Unix	2,163	2.16
Red Hat Enterprise Linux	2,103	2.1
mod_perl	824	0.82
mod_pagespeed	728	0.73
mod_ssl	659	0.66
AlmaLinux	645	0.64
Apache Tomcat JK	574	0.57
Win32 Header	437	0.44
FreeBSD	417	0.42
Fedora	395	0.4
Suhosin	167	0.17
Squid	157	0.16
Limiter Modules	119	0.12
Gentoo Linux	54	0.05
Alternate Protocol	35	0.03
GZIP Module	14	0.01
Hiawatha	13	0.01
HHVM	11	0.01
Joyent JWS	9	0.01
Auth Passthrough	7	0.01
PowerPC	7	0.01
Go Server	7	0.01
Cisco/Arrowpoint Content Service Switch	6	0.01