Websites Powered by Phusion Passenger
85,792 websites tracked using Phusion Passenger (Web servers) · phusionpassenger.com
Phusion Passenger is a web server that delivers the site's pages. Its official site is phusionpassenger.com. PoweredBy tracks the websites that use Phusion Passenger across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the web servers ecosystem.
Usage trend
10K
20K
30K
40K
Apr 2018
May 2020
May 2022
Jun 2024
Jun 2026
Domains observed using Phusion Passenger in each month's HTTP Archive crawl,
Apr 2018 to Jun 2026 · peak 31,082 in Nov 2022. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.8 s
INP 75 ms
CLS 0
TTFB 800 ms
Median site among 24,042 Phusion Passenger sites with Chrome UX data, p75 values, Jun 2026.
Top countries
United States
10,916
India
3,869
United Kingdom
3,214
Canada
3,165
Germany
3,118
France
2,766
Brazil
2,378
Spain
2,333
Sites using Phusion Passenger by audience country, Chrome UX Report.
Top sites by authority
9+
4% · 15 of 372 sites
8+
2% · 190 of 7,677 sites
7+
1% · 493 of 45,712 sites
6+
<1% · 755 of 110,136 sites
5+
<1% · 1,077 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Phusion Passenger in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Phusion Passenger
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | nih.gov | 9.44/10 | 301,200 | 37,339 | Aug 2018 |
| 2 | creativecommons.org | 9.33/10 | 115,400 | 60,133 | Aug 2018 |
| 3 | harvard.edu | 9.24/10 | 472,900 | 13,570 | Aug 2018 |
| 4 | ca.gov | 9.23/10 | 1,457,100 | 28,722 | Aug 2018 |
| 5 | mit.edu | 9.18/10 | 161,200 | 27,360 | Aug 2018 |
| 6 | nasa.gov | 9.15/10 | 2,715,500 | 372,280 | Aug 2018 |
| 7 | berkeley.edu | 9.10/10 | 166,900 | 5,412 | Aug 2018 |
| 8 | cornell.edu | 9.10/10 | 242,100 | 23,854 | Aug 2018 |
| 9 | openstreetmap.org | 9.04/10 | 84,300 | 9,254 | Jun 2018 |
| 10 | b-cdn.net | 9.02/10 | - | - | Aug 2025 |
| 11 | columbia.edu | 9.02/10 | 770,900 | 41,349 | Aug 2018 |
| 12 | psu.edu | 9.01/10 | 581,600 | 94,595 | Aug 2018 |
| 13 | yale.edu | 9.01/10 | 177,900 | 6,885 | Aug 2018 |
| 14 | uk.com | 9.00/10 | 2 | 12 | Apr 2018 |
| 15 | upenn.edu | 9.00/10 | 179,200 | 5,457 | Aug 2018 |
| 16 | ox.ac.uk | 8.98/10 | 214,200 | 93,016 | Aug 2018 |
| 17 | princeton.edu | 8.98/10 | 246,800 | 50,700 | Aug 2018 |
| 18 | wisc.edu | 8.97/10 | 461,400 | 7,361 | Aug 2018 |
| 19 | umn.edu | 8.96/10 | 78 | 49 | Aug 2018 |
| 20 | lefigaro.fr | 8.95/10 | 18,400 | 38,648 | Aug 2018 |
| 21 | mynavi.jp | 8.95/10 | 81 | 14 | Aug 2018 |
| 22 | maine.gov | 8.93/10 | 1,116,200 | 428,738 | Mar 2021 |
| 23 | utexas.edu | 8.92/10 | 503,000 | 11,984 | Aug 2018 |
| 24 | uchicago.edu | 8.92/10 | 63,700 | 10,331 | Aug 2018 |
| 25 | nyu.edu | 8.90/10 | 674,000 | 142,032 | Aug 2018 |
| 26 | duke.edu | 8.88/10 | 193,100 | 821 | Aug 2018 |
| 27 | northwestern.edu | 8.86/10 | 193,400 | 45,922 | Aug 2018 |
| 28 | ucsd.edu | 8.84/10 | 48,100 | 2,389 | Aug 2018 |
| 29 | illinois.edu | 8.83/10 | 47,000 | 4,065 | Aug 2018 |
| 30 | unc.edu | 8.83/10 | 342,800 | 27,928 | Apr 2019 |
| 31 | maryland.gov | 8.82/10 | 173,300 | 7,828 | Jun 2020 |
| 32 | cnrs.fr | 8.82/10 | 4,300 | 2,992 | Aug 2018 |
| 33 | mpg.de | 8.81/10 | 59,700 | 20,903 | Aug 2018 |
| 34 | colorado.gov | 8.81/10 | 81,400 | 12,781 | Oct 2020 |
| 35 | utoronto.ca | 8.81/10 | 42,800 | 10,094 | Dec 2023 |
| 36 | uzh.ch | 8.79/10 | 7,800 | 3,263 | Dec 2022 |
| 37 | georgetown.edu | 8.78/10 | 138,100 | 27,817 | Aug 2018 |
| 38 | eu.com | 8.77/10 | - | - | Jan 2019 |
| 39 | osu.edu | 8.76/10 | 163,600 | 14,045 | Aug 2018 |
| 40 | rutgers.edu | 8.75/10 | 147,400 | 31,478 | Aug 2022 |
| 41 | ucl.ac.uk | 8.74/10 | 154,800 | 93,062 | Jul 2022 |
| 42 | brown.edu | 8.73/10 | 377,100 | 26,065 | Aug 2018 |
| 43 | virginia.edu | 8.73/10 | 265,200 | 11,663 | Aug 2018 |
| 44 | illinois.gov | 8.73/10 | 523,000 | 73,209 | Sep 2022 |
| 45 | ncsu.edu | 8.72/10 | 155,900 | 15,968 | Jan 2019 |
| 46 | softbank.jp | 8.72/10 | 812,900 | 156,175 | May 2026 |
| 47 | colorado.edu | 8.72/10 | 591,600 | 213,520 | Aug 2018 |
| 48 | sxsw.com | 8.71/10 | 59,500 | 8,602 | Aug 2018 |
| 49 | mcgill.ca | 8.70/10 | 403,000 | 145,097 | Jun 2020 |
| 50 | unsw.edu.au | 8.69/10 | 77,400 | 61,319 | Dec 2021 |
| 51 | unbounce.com | 8.68/10 | 32,500 | 10,575 | Aug 2022 |
| 52 | siemens.com | 8.68/10 | 155,200 | 53,421 | Apr 2026 |
| 53 | gatech.edu | 8.68/10 | 72,600 | 12,653 | Mar 2020 |
| 54 | tufts.edu | 8.68/10 | 98,500 | 9,726 | Aug 2018 |
| 55 | ed.ac.uk | 8.67/10 | 29,600 | 5,927 | May 2019 |
| 56 | lse.ac.uk | 8.67/10 | 60,400 | 38,566 | Aug 2018 |
| 57 | delaware.gov | 8.67/10 | 128,800 | 12,757 | Jun 2020 |
| 58 | wdr.de | 8.67/10 | 440 | 367 | Feb 2023 |
| 59 | unl.edu | 8.67/10 | 64,000 | 6,655 | Aug 2018 |
| 60 | wustl.edu | 8.66/10 | - | - | Aug 2018 |
| 61 | state.mn.us | 8.65/10 | 1,200 | 52 | Jan 2024 |
| 62 | caltech.edu | 8.65/10 | 148,700 | 22,852 | Aug 2018 |
| 63 | uga.edu | 8.65/10 | 234,400 | 2,908 | Aug 2018 |
| 64 | orange.fr | 8.64/10 | 2,600 | 209 | Aug 2018 |
| 65 | gwu.edu | 8.64/10 | 257,600 | 13,986 | Sep 2020 |
| 66 | gencat.cat | 8.63/10 | 86 | 174 | Jul 2021 |
| 67 | uiowa.edu | 8.63/10 | 93,200 | 14,896 | May 2025 |
| 68 | wi.gov | 8.63/10 | - | - | Jun 2025 |
| 69 | vanderbilt.edu | 8.63/10 | 268,300 | 63,961 | Aug 2018 |
| 70 | oregonstate.edu | 8.63/10 | 88,700 | 11,290 | Aug 2018 |
| 71 | tudelft.nl | 8.63/10 | 23,300 | 7,683 | May 2019 |
| 72 | thinkific.com | 8.62/10 | 31,100 | 15,318 | Jan 2019 |
| 73 | buffalo.edu | 8.62/10 | 707,900 | 105,520 | Aug 2022 |
| 74 | uva.nl | 8.62/10 | 24,400 | 9,670 | Aug 2022 |
| 75 | iu.edu | 8.61/10 | 78,800 | 4,964 | Aug 2018 |
| 76 | dartmouth.edu | 8.60/10 | 38,300 | 13,550 | Aug 2022 |
| 77 | ucm.es | 8.60/10 | 15,000 | 16,497 | Aug 2018 |
| 78 | letemps.ch | 8.60/10 | 2,900 | 5,495 | Jun 2023 |
| 79 | unibe.ch | 8.60/10 | 4,700 | 1,336 | Jul 2020 |
| 80 | nd.edu | 8.59/10 | 56,800 | 8,385 | Aug 2018 |
| 81 | krakow.pl | 8.59/10 | 690 | 649 | Jun 2018 |
| 82 | univie.ac.at | 8.58/10 | 10,000 | 1,103 | Aug 2022 |
| 83 | unam.mx | 8.58/10 | 1,900 | 1,196 | Aug 2022 |
| 84 | helsinki.fi | 8.57/10 | 10,800 | 5,290 | Aug 2022 |
| 85 | ualberta.ca | 8.57/10 | 69,300 | 47,780 | Aug 2018 |
| 86 | realtor.com | 8.56/10 | 11,765,800 | 4,616,582 | Jun 2018 |
| 87 | signupgenius.com | 8.56/10 | 241,100 | 26,896 | Jan 2025 |
| 88 | emory.edu | 8.56/10 | 201,700 | 16,626 | Feb 2020 |
| 89 | cuni.cz | 8.56/10 | 4,400 | 1,637 | Dec 2020 |
| 90 | sc.edu | 8.55/10 | 527,200 | 137,589 | Aug 2022 |
| 91 | arkansas.gov | 8.55/10 | 1,000 | 768 | Mar 2021 |
| 92 | rwth-aachen.de | 8.55/10 | 640 | 1,476 | Jul 2020 |
| 93 | uky.edu | 8.55/10 | 270,500 | 30,796 | Jan 2019 |
| 94 | uoregon.edu | 8.55/10 | 156,600 | 8,876 | Aug 2018 |
| 95 | za.com | 8.53/10 | - | - | Aug 2022 |
| 96 | spb.ru | 8.53/10 | - | - | Jan 2019 |
| 97 | uni-hamburg.de | 8.53/10 | 5,500 | 3,110 | Jun 2018 |
| 98 | su.se | 8.53/10 | 31,900 | 7,908 | Aug 2018 |
| 99 | saude.gov.br | 8.52/10 | - | - | Sep 2023 |
| 100 | nebraska.gov | 8.52/10 | 97,900 | 26,778 | Aug 2022 |
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) →
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