Websites Powered by CentOS
227,740 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
Jun 2022
Jul 2024
Aug 2026
Domains observed using CentOS in each month's HTTP Archive crawl,
Apr 2018 to Aug 2026 · peak 118,511 in Nov 2022. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.6 s
INP 75 ms
CLS 0
TTFB 600 ms
Median site among 63,063 CentOS sites with Chrome UX data, p75 values, Aug 2026.
Top countries
Japan
13,559
United States
12,731
India
7,525
South Korea
6,436
Italy
5,915
United Kingdom
5,735
Germany
5,653
Brazil
5,371
Sites using CentOS by audience country, Chrome UX Report.
Top sites by authority
9+
4% · 14 of 372 sites
8+
4% · 290 of 7,677 sites
7+
2% · 928 of 45,712 sites
6+
1% · 1,577 of 110,136 sites
5+
1% · 2,502 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 | europa.eu | 9.57/10 | 42,200 | 31,835 | Aug 2018 |
| 2 | amazonaws.com | 9.50/10 | - | - | May 2019 |
| 3 | cloudfront.net | 9.47/10 | - | - | Jun 2020 |
| 4 | who.int | 9.26/10 | 3,114,700 | 778,407 | Feb 2022 |
| 5 | harvard.edu | 9.24/10 | 472,900 | 13,570 | Aug 2018 |
| 6 | stanford.edu | 9.19/10 | 3,302,700 | 5,160 | Aug 2018 |
| 7 | mit.edu | 9.18/10 | 161,200 | 27,360 | Aug 2018 |
| 8 | cornell.edu | 9.10/10 | 242,100 | 23,854 | Aug 2018 |
| 9 | mhlw.go.jp | 9.08/10 | 15,300 | 12,761 | Aug 2018 |
| 10 | columbia.edu | 9.02/10 | 770,900 | 41,349 | Aug 2018 |
| 11 | umich.edu | 9.01/10 | 36,500 | 1,974 | Aug 2018 |
| 12 | yale.edu | 9.01/10 | 177,900 | 6,885 | Aug 2018 |
| 13 | uk.com | 9.00/10 | 2 | 12 | May 2018 |
| 14 | upenn.edu | 9.00/10 | 179,200 | 5,457 | Aug 2018 |
| 15 | fortune.com | 8.99/10 | 1,538,600 | 582,756 | Jul 2020 |
| 16 | ox.ac.uk | 8.98/10 | 214,200 | 93,016 | Aug 2018 |
| 17 | wisc.edu | 8.97/10 | 461,400 | 7,361 | Aug 2018 |
| 18 | umn.edu | 8.96/10 | 78 | 49 | Aug 2018 |
| 19 | nsw.gov.au | 8.95/10 | 75,300 | 73,181 | Jan 2019 |
| 20 | ucla.edu | 8.93/10 | 412,200 | 14,756 | Aug 2018 |
| 21 | jhu.edu | 8.93/10 | 177,400 | 6,915 | Aug 2018 |
| 22 | cisco.com | 8.92/10 | 1,161,900 | 251,239 | Aug 2018 |
| 23 | uol.com.br | 8.92/10 | 33,600 | 42,015 | Apr 2018 |
| 24 | gov.ru | 8.91/10 | 2,700 | 216 | Apr 2018 |
| 25 | usc.edu | 8.89/10 | 361,000 | 14,987 | Aug 2018 |
| 26 | iheart.com | 8.88/10 | 1,899,600 | 677,344 | Aug 2018 |
| 27 | us.com | 8.86/10 | 32 | 9 | Jan 2019 |
| 28 | purdue.edu | 8.86/10 | 744,800 | 169,159 | Oct 2018 |
| 29 | ucsd.edu | 8.84/10 | 48,100 | 2,389 | Aug 2018 |
| 30 | ubc.ca | 8.84/10 | 14,500 | 2,813 | Aug 2018 |
| 31 | illinois.edu | 8.83/10 | 47,000 | 4,065 | Aug 2018 |
| 32 | ucdavis.edu | 8.83/10 | 383,600 | 93,475 | Aug 2018 |
| 33 | tokyo.lg.jp | 8.83/10 | - | - | Feb 2020 |
| 34 | cnrs.fr | 8.82/10 | 4,300 | 2,992 | Aug 2018 |
| 35 | mpg.de | 8.81/10 | 59,700 | 20,903 | Aug 2018 |
| 36 | utoronto.ca | 8.81/10 | 42,800 | 10,094 | Aug 2018 |
| 37 | msu.edu | 8.78/10 | 149,500 | 2,641 | Aug 2018 |
| 38 | gouv.qc.ca | 8.77/10 | - | - | Aug 2018 |
| 39 | uci.edu | 8.76/10 | 94,700 | 9,859 | Apr 2018 |
| 40 | rutgers.edu | 8.75/10 | 147,400 | 31,478 | Aug 2018 |
| 41 | virginia.edu | 8.73/10 | 265,200 | 11,663 | Aug 2018 |
| 42 | illinois.gov | 8.73/10 | 523,000 | 73,209 | Aug 2018 |
| 43 | ucsb.edu | 8.71/10 | 73,800 | 11,445 | Aug 2018 |
| 44 | arizona.edu | 8.71/10 | 127,800 | 25,918 | Aug 2018 |
| 45 | hku.hk | 8.70/10 | 6,000 | 1,100 | Aug 2018 |
| 46 | mcgill.ca | 8.70/10 | 403,000 | 145,097 | Aug 2018 |
| 47 | in.net | 8.69/10 | - | - | Feb 2020 |
| 48 | unsw.edu.au | 8.69/10 | 77,400 | 61,319 | Aug 2018 |
| 49 | linuxfoundation.org | 8.68/10 | 15,600 | 5,532 | May 2020 |
| 50 | inria.fr | 8.68/10 | 1,200 | 667 | May 2019 |
| 51 | rtve.es | 8.68/10 | 65,500 | 98,573 | Aug 2018 |
| 52 | co.com | 8.67/10 | - | - | Jan 2019 |
| 53 | unl.edu | 8.67/10 | 64,000 | 6,655 | Apr 2018 |
| 54 | wustl.edu | 8.66/10 | - | - | Aug 2018 |
| 55 | ru.com | 8.65/10 | - | - | Jan 2019 |
| 56 | caltech.edu | 8.65/10 | 148,700 | 22,852 | Aug 2018 |
| 57 | uga.edu | 8.65/10 | 234,400 | 2,908 | Aug 2018 |
| 58 | usp.br | 8.65/10 | 1 | 19 | Aug 2018 |
| 59 | uq.edu.au | 8.65/10 | 9,700 | 1,554 | Aug 2018 |
| 60 | lu.se | 8.65/10 | 350 | 710 | Aug 2018 |
| 61 | wsu.edu | 8.64/10 | 66,200 | 13,870 | Aug 2018 |
| 62 | iowa.gov | 8.64/10 | 68,900 | 16,059 | Aug 2018 |
| 63 | vt.edu | 8.64/10 | 215,800 | 25,974 | Aug 2018 |
| 64 | gwu.edu | 8.64/10 | 257,600 | 13,986 | Aug 2018 |
| 65 | vanderbilt.edu | 8.63/10 | 268,300 | 63,961 | Aug 2018 |
| 66 | oregonstate.edu | 8.63/10 | 88,700 | 11,290 | Aug 2018 |
| 67 | ub.edu | 8.62/10 | 11,300 | 24,177 | Aug 2018 |
| 68 | hawaii.edu | 8.62/10 | 117,100 | 43,233 | Aug 2018 |
| 69 | uic.edu | 8.61/10 | 69,500 | 13,549 | Apr 2018 |
| 70 | iu.edu | 8.61/10 | 78,800 | 4,964 | Oct 2019 |
| 71 | ucm.es | 8.60/10 | 15,000 | 16,497 | Aug 2018 |
| 72 | gov.scot | 8.59/10 | 61,200 | 34,464 | Aug 2018 |
| 73 | krakow.pl | 8.59/10 | 690 | 649 | Apr 2018 |
| 74 | csic.es | 8.59/10 | 1,200 | 2,107 | Aug 2018 |
| 75 | state.tx.us | 8.58/10 | - | - | Aug 2018 |
| 76 | fu-berlin.de | 8.58/10 | 11,500 | 7,748 | Aug 2018 |
| 77 | univie.ac.at | 8.58/10 | 10,000 | 1,103 | May 2019 |
| 78 | jugem.jp | 8.58/10 | 18 | 6 | Dec 2020 |
| 79 | unam.mx | 8.58/10 | 1,900 | 1,196 | Aug 2018 |
| 80 | helsinki.fi | 8.57/10 | 10,800 | 5,290 | Aug 2018 |
| 81 | cnr.it | 8.57/10 | 810 | 1,174 | Aug 2018 |
| 82 | ualberta.ca | 8.57/10 | 69,300 | 47,780 | Aug 2018 |
| 83 | usf.edu | 8.57/10 | 453,200 | 120,359 | Aug 2018 |
| 84 | kyoto-u.ac.jp | 8.57/10 | 4,800 | 3,548 | Aug 2018 |
| 85 | ucsc.edu | 8.56/10 | 72,800 | 11,866 | Aug 2018 |
| 86 | uni-muenchen.de | 8.56/10 | - | - | Apr 2018 |
| 87 | gmu.edu | 8.56/10 | 143,500 | 30,472 | Aug 2018 |
| 88 | estadao.com.br | 8.56/10 | 19,800 | 38,709 | Aug 2018 |
| 89 | cuni.cz | 8.56/10 | 4,400 | 1,637 | Apr 2018 |
| 90 | liu.se | 8.56/10 | 6,700 | 3,335 | Aug 2018 |
| 91 | udel.edu | 8.55/10 | 126,300 | 47,905 | Aug 2018 |
| 92 | juntadeandalucia.es | 8.54/10 | 5,400 | 17,242 | Sep 2023 |
| 93 | spb.ru | 8.53/10 | - | - | Apr 2018 |
| 94 | uiuc.edu | 8.53/10 | 230 | 144 | Apr 2019 |
| 95 | ga.gov | 8.53/10 | - | - | Aug 2018 |
| 96 | su.se | 8.53/10 | 31,900 | 7,908 | Aug 2018 |
| 97 | jp.net | 8.52/10 | 66 | 7 | Apr 2018 |
| 98 | saude.gov.br | 8.52/10 | - | - | Aug 2018 |
| 99 | europepmc.org | 8.52/10 | 39,200 | 77,989 | Jul 2024 |
| 100 | upm.es | 8.52/10 | 2,100 | 1,692 | 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) →