Server Usage Distribution in the Top 1 Million Sites

Top In Server Usage Distribution in the Top 1 Million Sites

Technology	Websites	%
IPv6	467,814	46.78
Ubuntu	81,383	8.14
Envoy	43,979	4.4
OpenSSL	38,278	3.83
QUIC	34,057	3.41
Parallels Plesk Panel	28,082	2.81
Debian	24,218	2.42
CentOS	19,473	1.95
GitHub Hosting	10,403	1.04
Unix	8,861	0.89
Red Hat Enterprise Linux	5,336	0.53
mod_pagespeed	5,096	0.51
AlmaLinux	3,101	0.31
mod_perl	2,689	0.27
mod_ssl	2,580	0.26
Apache Tomcat JK	1,791	0.18
FreeBSD	1,775	0.18
Win32 Header	1,556	0.16
Fedora	1,310	0.13
Limiter Modules	799	0.08
Suhosin	512	0.05
Squid	449	0.04
Gentoo Linux	340	0.03
Alternate Protocol	149	0.01
Hiawatha	63	0.01
GZIP Module	61	0.01
Auth Passthrough	48	0
HHVM	38	0
Go Server	25	0
PowerPC	19	0
Joyent JWS	14	0
Cisco/Arrowpoint Content Service Switch	11	0

784,310 Detections

of Operating Systems and Servers in the Top 1 Million Sites. Last updated 01st Jul 2025.

IPv6 is currently the most popular technology in this category.