CentOS on new websites

Community-supported Linux distribution derived from Red Hat Enterprise Linux, commonly used as a server operating system.

Sites using CentOS
1,315
since Apr 2026
Last 30 days
0.0%
of new sites, to Oct 18
no change on the 30 days before
Last 7 days
0.0%
of new sites, 7-day average
no change on the week before
Rank in OS
#3
of 14 tools, all time
In our data since Apr 2026
Last seen Oct 19, 2026
Website centos.org

What we found

  1. CentOS appeared on about 390 new sites in the last 30 days.[1]
  2. It is the third most common OS technology on new sites. Ubuntu appears on about 120 times as many.
  3. Almost all new CentOS sites also use Apache.
  4. It is unusually common on .uk domains: 24% of the domains running it, against 3% of domains across new sites.

Share of new sites using CentOS

0.00% 0.01% 0.02% 0.03% 10 Sep Oct

The line is the 7-day average share of new sites that use CentOS, since 10 September.

Who uses CentOS

Kind of site 199 sites with a known type
TypeSitesShareBar
Productivity 30 15.1%
E-commerce 28 14.1%
Health 25 12.6%
Marketing 23 11.6%
Finance 21 10.6%
Education 14 7.0%
Content 13 6.5%
Games 9 4.5%
AI 8 4.0%
Hiring & HR 8 4.0%
Developer Tools 7 3.5%
Social 7 3.5%
Country[2] 140 sites with a known country
CountrySitesShareBar
Taiwan 76 54.3%
UK 38 27.1%
South Korea 9 6.4%
India 4 2.9%
Australia 3 2.1%
China 2 1.4%
Germany 2 1.4%
US 2 1.4%
Brazil 1 0.7%
Canada 1 0.7%
Ecuador 1 0.7%
Slovakia 1 0.7%
Domain ending 1,315 sites
EndingSitesShareBar
.com 734 55.8%
.uk 324 24.6%
.in 34 2.6%
.net 32 2.4%
.site 20 1.5%
.online 17 1.3%
.org 17 1.3%
.co 14 1.1%
.space 11 0.8%
.io 10 0.8%
.store 10 0.8%
.app 7 0.5%
Green hosting[3] 29 checked sites since Apr 2026
SitesGreenBar
CentOS 3%
All new sites 47%

OS on new sites

# Movement Tool Share of all sites Share of category Bar
1 – Ubuntu 2.5% 91.5%
2 – Debian 0.2% 6.0%
3 ▼1 CentOS <0.1% 0.8%
4 ▲1 Amazon Linux <0.1% 0.7%
5 – AlmaLinux <0.1% 0.7%

All-time shares across the new sites we track: of all of them, and of the sites using any OS tool. All 14 in OS

Often used with CentOS

Tool Sites with both vs all new sites Bar
AMCS DNS 326 4555x
New World Digital Media 299 4539x
LiveMail 319 351x
LiveDNS 319 198x
Apache 1,315 21x

Tools that turn up far more often on CentOS sites than on new sites in general, and how many times as common each one is there.

Recently launched products built on CentOS

Notes

  1. These figures cover websites that went live since April 2026, not the web as a whole.
  2. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. We count a country only where it is stated plainly enough to be sure: a governing-law clause or company registration number on a legal page, a phone country code, or a country domain ending. Sites that publish none are not counted at all.
  3. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.

How this page is made

FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards CentOS when we detect CentOS on it at that look.

Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.