Websites Powered by CentOS
227,290 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
50K
100K
150K
Apr 2018
May 2020
Jul 2022
Aug 2024
Sep 2026
Domains observed using CentOS in each month's HTTP Archive crawl,
Apr 2018 to Sep 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
| Industry | Share | Websites |
|---|---|---|
| Beauty and wellness | 0.88% | 226 |
| Government | 0.80% | 64 |
| Games | 0.56% | 27 |
| Education | 0.37% | 184 |
| Arts and entertainment | 0.20% | 82 |
| News and media | 0.15% | 62 |
| Blogs and publishing | 0.13% | 31 |
| Non-profit and religious | 0.10% | 8 |
| Software and apps | 0.10% | 114 |
| Professional services | 0.09% | 39 |
| Healthcare | 0.08% | 90 |
| Travel and hospitality | 0.07% | 54 |
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% · 10 of 372 sites
8+
4% · 274 of 7,677 sites
7+
2% · 873 of 45,712 sites
6+
1% · 1,491 of 110,136 sites
5+
<1% · 2,372 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
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | cloudfront.net | 9.47/10 | - | - | Dec 2017 |
| 2 | who.int | 9.26/10 | 3,114,700 | 778,407 | Feb 2022 |
| 3 | harvard.edu | 9.24/10 | 472,700 | 11,444 | Aug 2018 |
| 4 | stanford.edu | 9.19/10 | 3,302,700 | 5,160 | Aug 2018 |
| 5 | mit.edu | 9.18/10 | 163,800 | 31,239 | Aug 2018 |
| 6 | cornell.edu | 9.10/10 | 140,600 | 19,190 | Aug 2018 |
| 7 | columbia.edu | 9.02/10 | 768,900 | 38,656 | Jan 2016 |
| 8 | umich.edu | 9.01/10 | 36,500 | 1,974 | Aug 2018 |
| 9 | uk.com | 9.00/10 | 2 | 12 | Jan 2016 |
| 10 | upenn.edu | 9.00/10 | 178,900 | 4,794 | Aug 2018 |
| 11 | fortune.com | 8.99/10 | 1,515,200 | 527,201 | Jul 2020 |
| 12 | ox.ac.uk | 8.98/10 | 214,200 | 93,016 | Aug 2018 |
| 13 | wisc.edu | 8.97/10 | 461,200 | 6,382 | Aug 2018 |
| 14 | umn.edu | 8.96/10 | 78 | 51 | Aug 2018 |
| 15 | nsw.gov.au | 8.95/10 | 75,300 | 73,181 | Jan 2019 |
| 16 | ucla.edu | 8.93/10 | 410,700 | 13,782 | Apr 2016 |
| 17 | jhu.edu | 8.93/10 | 177,300 | 5,821 | Aug 2018 |
| 18 | cisco.com | 8.92/10 | 1,161,900 | 251,239 | Aug 2018 |
| 19 | uol.com.br | 8.92/10 | 33,600 | 42,015 | Sep 2017 |
| 20 | gov.ru | 8.91/10 | 2,700 | 216 | May 2017 |
| 21 | usc.edu | 8.89/10 | 362,800 | 14,354 | Aug 2018 |
| 22 | iheart.com | 8.88/10 | 1,878,100 | 578,548 | Aug 2018 |
| 23 | us.com | 8.86/10 | 32 | 8 | Apr 2017 |
| 24 | purdue.edu | 8.86/10 | 746,900 | 132,133 | Oct 2018 |
| 25 | ucsd.edu | 8.84/10 | 48,100 | 2,261 | Aug 2018 |
| 26 | ubc.ca | 8.84/10 | 14,500 | 2,813 | Aug 2018 |
| 27 | illinois.edu | 8.83/10 | 47,000 | 3,612 | Aug 2018 |
| 28 | ucdavis.edu | 8.83/10 | 381,100 | 81,485 | Aug 2018 |
| 29 | tokyo.lg.jp | 8.83/10 | - | - | Feb 2020 |
| 30 | cnrs.fr | 8.82/10 | 4,300 | 2,992 | Aug 2018 |
| 31 | mpg.de | 8.81/10 | 59,700 | 20,903 | Aug 2018 |
| 32 | utoronto.ca | 8.81/10 | 42,800 | 10,094 | Aug 2018 |
| 33 | msu.edu | 8.78/10 | 149,500 | 2,186 | Jan 2016 |
| 34 | gouv.qc.ca | 8.77/10 | - | - | Aug 2018 |
| 35 | uci.edu | 8.76/10 | 94,600 | 9,503 | Jan 2016 |
| 36 | rutgers.edu | 8.75/10 | 146,600 | 28,567 | Jan 2016 |
| 37 | virginia.edu | 8.73/10 | 265,100 | 10,889 | Aug 2018 |
| 38 | illinois.gov | 8.73/10 | 521,900 | 65,410 | Aug 2018 |
| 39 | ucsb.edu | 8.71/10 | 73,800 | 11,445 | Aug 2018 |
| 40 | arizona.edu | 8.71/10 | 127,500 | 23,873 | Aug 2018 |
| 41 | hku.hk | 8.70/10 | 6,000 | 1,100 | Aug 2018 |
| 42 | in.net | 8.69/10 | - | - | Feb 2020 |
| 43 | unsw.edu.au | 8.69/10 | 77,400 | 61,319 | Aug 2018 |
| 44 | linuxfoundation.org | 8.68/10 | 15,600 | 5,532 | May 2020 |
| 45 | inria.fr | 8.68/10 | 1,200 | 667 | May 2019 |
| 46 | rtve.es | 8.68/10 | 65,500 | 98,573 | Aug 2018 |
| 47 | co.com | 8.67/10 | - | - | May 2017 |
| 48 | unl.edu | 8.67/10 | 64,000 | 6,422 | Jan 2016 |
| 49 | wustl.edu | 8.66/10 | - | - | Aug 2018 |
| 50 | caltech.edu | 8.65/10 | 148,200 | 20,173 | Aug 2018 |
| 51 | uga.edu | 8.65/10 | 234,500 | 2,950 | Aug 2018 |
| 52 | usp.br | 8.65/10 | 1 | 19 | Aug 2018 |
| 53 | uq.edu.au | 8.65/10 | 9,700 | 1,554 | Aug 2018 |
| 54 | lu.se | 8.65/10 | 350 | 710 | Aug 2018 |
| 55 | wsu.edu | 8.64/10 | 66,200 | 13,870 | Aug 2018 |
| 56 | vt.edu | 8.64/10 | 215,100 | 20,548 | Aug 2018 |
| 57 | gwu.edu | 8.64/10 | 257,300 | 13,278 | Aug 2018 |
| 58 | vanderbilt.edu | 8.63/10 | 265,200 | 51,240 | Aug 2018 |
| 59 | ub.edu | 8.62/10 | 11,300 | 24,177 | Aug 2018 |
| 60 | hawaii.edu | 8.62/10 | 117,100 | 43,233 | Aug 2018 |
| 61 | uic.edu | 8.61/10 | 68,900 | 11,201 | Jan 2016 |
| 62 | iu.edu | 8.61/10 | 79,300 | 4,571 | Oct 2019 |
| 63 | ucm.es | 8.60/10 | 15,000 | 16,497 | Aug 2018 |
| 64 | krakow.pl | 8.59/10 | 690 | 649 | Jun 2016 |
| 65 | csic.es | 8.59/10 | 1,200 | 2,107 | Aug 2018 |
| 66 | state.tx.us | 8.58/10 | - | - | Aug 2018 |
| 67 | fu-berlin.de | 8.58/10 | 11,500 | 7,748 | Aug 2018 |
| 68 | univie.ac.at | 8.58/10 | 10,000 | 1,103 | Jan 2016 |
| 69 | jugem.jp | 8.58/10 | 18 | 6 | Dec 2020 |
| 70 | unam.mx | 8.58/10 | 1,900 | 1,196 | Aug 2018 |
| 71 | helsinki.fi | 8.57/10 | 10,800 | 5,290 | Aug 2018 |
| 72 | cnr.it | 8.57/10 | 810 | 1,174 | Aug 2018 |
| 73 | ualberta.ca | 8.57/10 | 69,300 | 47,780 | Aug 2018 |
| 74 | usf.edu | 8.57/10 | 459,500 | 80,745 | Aug 2018 |
| 75 | kyoto-u.ac.jp | 8.57/10 | 4,800 | 3,548 | Aug 2018 |
| 76 | ucsc.edu | 8.56/10 | 72,800 | 11,228 | Aug 2018 |
| 77 | uni-muenchen.de | 8.56/10 | - | - | May 2017 |
| 78 | gmu.edu | 8.56/10 | 143,200 | 25,328 | Aug 2018 |
| 79 | estadao.com.br | 8.56/10 | 19,800 | 38,709 | Aug 2018 |
| 80 | cuni.cz | 8.56/10 | 4,400 | 1,637 | Jan 2016 |
| 81 | liu.se | 8.56/10 | 6,700 | 3,335 | Aug 2018 |
| 82 | udel.edu | 8.55/10 | 157,300 | 39,674 | Aug 2018 |
| 83 | juntadeandalucia.es | 8.54/10 | 5,400 | 17,242 | Sep 2023 |
| 84 | spb.ru | 8.53/10 | - | - | Jan 2016 |
| 85 | uiuc.edu | 8.53/10 | 230 | 143 | Apr 2019 |
| 86 | ga.gov | 8.53/10 | - | - | Aug 2018 |
| 87 | su.se | 8.53/10 | 31,900 | 7,908 | Aug 2018 |
| 88 | jp.net | 8.52/10 | 66 | 7 | Sep 2017 |
| 89 | saude.gov.br | 8.52/10 | - | - | Aug 2018 |
| 90 | europepmc.org | 8.52/10 | 39,200 | 77,989 | Jul 2024 |
| 91 | upm.es | 8.52/10 | 2,100 | 1,692 | Aug 2018 |
| 92 | keio.ac.jp | 8.52/10 | 9,400 | 1,068 | Aug 2018 |
| 93 | gov.ro | 8.51/10 | 640 | 166 | Nov 2019 |
| 94 | uni-bremen.de | 8.51/10 | 2,000 | 1,789 | Aug 2018 |
| 95 | unizar.es | 8.51/10 | 280 | 138 | Aug 2018 |
| 96 | ibge.gov.br | 8.51/10 | 4,400 | 4,506 | Jun 2018 |
| 97 | muni.cz | 8.51/10 | 1,300 | 919 | Aug 2018 |
| 98 | umontreal.ca | 8.50/10 | 3,700 | 761 | Mar 2020 |
| 99 | ocn.ne.jp | 8.50/10 | 16 | 18 | Aug 2018 |
| 100 | uni-tuebingen.de | 8.49/10 | 2,900 | 2,712 | Aug 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).