Websites Powered by CentOS

226,786 websites tracked using CentOS (Operating systems) · centos.org

CentOS is a server operating system the site runs on. Its official site is centos.org. PoweredBy tracks the websites that use CentOS across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the operating systems ecosystem.

Usage trend

Domains observed using CentOS in each month's HTTP Archive crawl, Apr 2018 to Oct 2026 · peak 118,511 in Nov 2022. The tracked total above also counts sites not re-crawled recently.

Core Web Vitals

LCP 1.5 s INP 75 ms CLS 0 TTFB 600 ms

Median site among 62,749 CentOS sites with Chrome UX data, p75 values, Sep 2026.

Top countries

Japan 13,364
United States 12,631
India 7,375
South Korea 6,485
Italy 6,135
United Kingdom 5,698
Germany 5,581
Brazil 5,311

Sites using CentOS by audience country, Chrome UX Report.

Usage by industry

IndustryShareWebsites
Government 0.82% 77
Beauty and wellness 0.74% 230
Games 0.38% 27
Education 0.32% 203
Sports and fitness 0.25% 54
Arts and entertainment 0.20% 104
News and media 0.13% 64
Blogs and publishing 0.12% 35
Non-profit and religious 0.11% 11
Healthcare 0.08% 106
Software and apps 0.08% 126
Finance and insurance 0.07% 15

Share of each industry's websites with a detected stack that use CentOS; industries come from what sites declare in their own structured data.

Top sites by authority

9+ 3% · 11 of 372 sites
8+ 3% · 268 of 7,677 sites
7+ 2% · 862 of 45,712 sites
6+ 1% · 1,457 of 110,136 sites
5+ <1% · 2,310 of 246,751 sites

The share of the web's most authoritative domains, by Open Page Rank tier, seen running CentOS in recent crawls. Only 372 domains worldwide score 9 or higher.

Websites using CentOS

#DomainOpen Page RankOPREst. monthly visits (US)Visits (US)KeywordsFirst seen
201 unl.pt 8.19/10 480 245 Aug 2018
202 unige.it 8.18/10 4,100 1,729 Aug 2018
203 uni-saarland.de 8.18/10 2,200 1,673 Aug 2018
204 kyoukaikenpo.or.jp 8.18/10 19 76 Aug 2022
205 takashimaya.co.jp 8.18/10 600 640 Aug 2018
206 nmap.org 8.17/10 28,400 15,010 May 2017
207 navarra.es 8.17/10 2,600 4,406 Aug 2018
208 pref.shizuoka.jp 8.17/10 240 103 Jan 2019
209 lublin.pl 8.17/10 4 3 Apr 2018
210 wfu.edu 8.16/10 12,200 7,235 Aug 2018
211 sbn.it 8.15/10 - - May 2017
212 uma.es 8.15/10 1,700 2,592 Aug 2018
213 inmotionhosting.com 8.14/10 48,600 20,648 Aug 2022
214 nkp.cz 8.14/10 250 72 May 2020
215 u-bordeaux.fr 8.14/10 810 529 Jan 2019
216 uoa.gr 8.13/10 29 56 Aug 2018
217 geonames.org 8.12/10 291,800 35,597 Jan 2017
218 auth.gr 8.11/10 1,900 302 Aug 2018
219 unina.it 8.10/10 2,800 1,842 Aug 2018
220 capes.gov.br 8.09/10 - - Aug 2018
221 niu.edu 8.09/10 262,400 46,167 Aug 2018
222 cultura.gov.it 8.09/10 670 1,458 Nov 2023
223 thunderbird.net 8.07/10 97,500 12,040 Apr 2026
224 xunta.gal 8.07/10 2,400 3,286 Aug 2018
225 prefeitura.sp.gov.br 8.07/10 3,800 5,554 Jan 2019
226 uta.edu 8.06/10 218,100 45,252 Jan 2019
227 unive.it 8.06/10 3,800 1,946 Sep 2020
228 nagano.lg.jp 8.06/10 - - May 2021
229 inra.fr 8.06/10 - - Aug 2018
230 sjtu.edu.cn 8.05/10 22 9 Jan 2020
231 camcom.it 8.05/10 - - Aug 2018
232 puc-rio.br 8.05/10 750 657 Aug 2018
233 embrapa.br 8.05/10 1,700 2,896 Aug 2018
234 nationalrail.co.uk 8.04/10 74,400 27,723 Mar 2023
235 eso.org 8.04/10 77,000 19,163 Aug 2022
236 elte.hu 8.04/10 1,100 915 Aug 2018
237 newcastle.edu.au 8.04/10 41,700 15,359 Dec 2022
238 ui.ac.id 8.04/10 190 21 Feb 2019
239 nojima.co.jp 8.03/10 64 81 Aug 2018
240 cgiar.org 8.03/10 10,400 4,338 Aug 2018
241 msu.ru 8.02/10 4,500 86 Aug 2018
242 copyscape.com 8.02/10 5,000 2,542 Jan 2016
243 msk.ru 8.02/10 - - Jan 2019
244 tuni.fi 8.02/10 3,800 2,222 Jun 2024
245 bg.ac.rs 8.02/10 68 28 Jan 2016
246 utu.fi 8.02/10 2,000 1,036 Jan 2019
247 uc.cl 8.02/10 2,800 2,417 Aug 2018
248 uff.br 8.02/10 56 156 Aug 2018
249 apc.org 8.01/10 6,300 1,138 Aug 2018
250 regione.toscana.it 8.01/10 490 645 Jan 2019
251 realclearpolitics.com 8.01/10 228,500 8,146 Mar 2017
252 uni-paderborn.de 8.01/10 600 604 Sep 2021
253 uliege.be 8.01/10 320 106 Jan 2019
254 universite-paris-saclay.fr 8.01/10 3,700 1,800 Feb 2020
255 oulu.fi 8.01/10 5,300 1,326 Aug 2018
256 ndsu.edu 8.01/10 105,700 40,780 Aug 2018
257 uminho.pt 8.01/10 300 85 Aug 2018
258 ntua.gr 8.01/10 1,000 53 Aug 2018
259 animate-onlineshop.jp 8.01/10 1,400 658 Feb 2024
260 city.sendai.jp 8.01/10 740 67 Jan 2019
261 pref.nara.jp 8.01/10 300 157 Jan 2019
262 uva.es 8.01/10 240 324 Aug 2018
263 myswitzerland.com 8.00/10 378,600 30,847 Aug 2018
264 polyu.edu.hk 8.00/10 12,700 10,727 Aug 2018
265 uniandes.edu.co 8.00/10 2,300 994 Apr 2016
266 u-strasbg.fr 8.00/10 - - Aug 2018
267 uniroma2.it 8.00/10 3 23 Aug 2018
268 umk.pl 8.00/10 240 151 Aug 2018
269 health.gov.lk 7.99/10 1,000 1,345 Aug 2016
270 diputados.gob.mx 7.99/10 12,000 28,182 Dec 2020
271 wlu.ca 7.99/10 7,400 4,251 Aug 2018
272 chula.ac.th 7.99/10 5,600 2,737 Aug 2018
273 unlp.edu.ar 7.99/10 960 1,360 Aug 2018
274 cnam.fr 7.99/10 210 158 Aug 2018
275 infn.it 7.99/10 900 585 Jun 2018
276 en-gage.net 7.98/10 42 99 Jun 2020
277 ddns.net 7.98/10 - - Jan 2019
278 ust.hk 7.98/10 - - Aug 2018
279 iitb.ac.in 7.98/10 7,000 1,635 Aug 2018
280 ernet.in 7.98/10 140 181 Jan 2016
281 seclists.org 7.97/10 850 1,946 Aug 2018
282 iqvia.com 7.97/10 43,700 14,446 Oct 2020
283 enedis.fr 7.97/10 910 1,014 Apr 2024
284 meteofrance.com 7.96/10 38,600 16,054 Feb 2019
285 regione.piemonte.it 7.96/10 450 1,080 Feb 2020
286 cdmx.gob.mx 7.96/10 1,900 1,510 Aug 2018
287 tomsk.ru 7.95/10 23 11 Oct 2016
288 loria.fr 7.95/10 3 17 Oct 2022
289 nishinippon.co.jp 7.95/10 13 55 Dec 2020
290 real.com 7.94/10 9,000 4,978 Aug 2018
291 pchome.com.tw 7.94/10 500 31 Jan 2019
292 arts.ac.uk 7.94/10 23,100 9,526 Aug 2018
293 kerala.gov.in 7.94/10 540 50 Aug 2018
294 state.ms.us 7.93/10 - - Aug 2019
295 uvigo.es 7.93/10 - - Feb 2019
296 maharashtra.gov.in 7.92/10 15 54 Mar 2019
297 jiji.com 7.92/10 1,500 1,814 Oct 2019
298 sre.gob.mx 7.92/10 820 618 Jun 2021
299 castillalamancha.es 7.92/10 1,600 3,617 Aug 2018
300 uji.es 7.92/10 210 128 Mar 2018

Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.

Download top 10,000 as CSV (zip) →

Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).

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