Server Usage Distribution in the Top 100k Sites

Top In Server Usage Distribution in the Top 100k Sites

Technology	Websites	%
IPv6	61,324	61.32
Ubuntu	12,763	12.76
Envoy	10,217	10.22
OpenSSL	7,372	7.37
Debian	4,425	4.42
CentOS	3,804	3.8
GitHub Hosting	2,815	2.82
Parallels Plesk Panel	2,498	2.5
QUIC	2,419	2.42
Unix	2,152	2.15
Red Hat Enterprise Linux	2,093	2.09
mod_perl	823	0.82
mod_pagespeed	725	0.73
mod_ssl	656	0.66
AlmaLinux	635	0.64
Apache Tomcat JK	568	0.57
Win32 Header	435	0.43
FreeBSD	414	0.41
Fedora	394	0.39
Suhosin	166	0.17
Squid	156	0.16
Limiter Modules	119	0.12
Gentoo Linux	53	0.05
Alternate Protocol	35	0.03
GZIP Module	14	0.01
Hiawatha	13	0.01
HHVM	11	0.01
Joyent JWS	8	0.01
Auth Passthrough	7	0.01
PowerPC	7	0.01
Go Server	7	0.01
Cisco/Arrowpoint Content Service Switch	5	0

117,133 Detections

of Operating Systems and Servers in the Top 100k Sites. Last updated 01st Jul 2025.

IPv6 is currently the most popular technology in this category.