Websites Powered by Sphinx
1,499 websites tracked using Sphinx (Documentation) · www.sphinx-doc.org
Sphinx is a documentation platform for publishing technical docs. Its official site is sphinx-doc.org. PoweredBy tracks the websites that use Sphinx across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the documentation ecosystem.
Usage trend
250
500
750
1K
Apr 2018
Jun 2020
Jul 2022
Sep 2024
Oct 2026
Domains observed using Sphinx in each month's HTTP Archive crawl,
Apr 2018 to Oct 2026 · peak 845 in Apr 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.6 s
INP 50 ms
CLS 0
TTFB 700 ms
Median site among 599 Sphinx sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
423
India
378
Germany
242
France
235
United Kingdom
232
Canada
227
Brazil
224
Japan
213
Sites using Sphinx by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Games | 0.04% | 3 |
| Government | 0.01% | 1 |
| Blogs and publishing | <0.01% | 2 |
| Education | <0.01% | 3 |
| Arts and entertainment | <0.01% | 1 |
| Software and apps | <0.01% | 3 |
| Retail | <0.01% | 2 |
Share of each industry's websites with a detected stack that use Sphinx; industries come from what sites declare in their own structured data.
Top sites by authority
9+
2% · 7 of 372 sites
8+
<1% · 33 of 7,677 sites
7+
<1% · 68 of 45,712 sites
6+
<1% · 92 of 110,136 sites
5+
<1% · 124 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Sphinx in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Sphinx
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | github.io | 9.43/10 | 1,800 | 1 | Aug 2018 |
| 2 | gandi.net | 9.23/10 | 12,700 | 2,692 | Sep 2018 |
| 3 | pages.dev | 9.14/10 | - | - | Oct 2026 |
| 4 | openai.com | 9.10/10 | 1,962,300 | 167,582 | Jan 2019 |
| 5 | sourceforge.net | 9.06/10 | 989,700 | 262,344 | Aug 2018 |
| 6 | readthedocs.io | 9.04/10 | - | - | Aug 2018 |
| 7 | python.org | 9.03/10 | 408,400 | 29,027 | Aug 2018 |
| 8 | uchicago.edu | 8.92/10 | 63,700 | 10,331 | Aug 2018 |
| 9 | mitre.org | 8.76/10 | 29,600 | 10,047 | Feb 2025 |
| 10 | kernel.org | 8.73/10 | 29,000 | 6,432 | Mar 2022 |
| 11 | gitlab.io | 8.64/10 | - | - | Feb 2020 |
| 12 | gnome.org | 8.62/10 | 64,500 | 1,044 | Feb 2024 |
| 13 | sourceforge.io | 8.57/10 | - | - | Mar 2022 |
| 14 | pydata.org | 8.54/10 | 340 | 377 | Aug 2018 |
| 15 | ucar.edu | 8.52/10 | 1,500 | 873 | Jun 2025 |
| 16 | pypa.io | 8.51/10 | 110 | 21 | Jun 2018 |
| 17 | jupyter.org | 8.51/10 | 29,200 | 12,680 | Feb 2020 |
| 18 | bitcoin.org | 8.51/10 | 40,200 | 10,161 | Sep 2020 |
| 19 | databricks.com | 8.45/10 | 93,300 | 44,963 | Aug 2018 |
| 20 | llvm.org | 8.39/10 | 7,200 | 3,555 | Aug 2018 |
| 21 | dtu.dk | 8.35/10 | 2,600 | 3,489 | Oct 2023 |
| 22 | openstack.org | 8.33/10 | 2,800 | 3,253 | Aug 2018 |
| 23 | pocoo.org | 8.31/10 | - | - | Aug 2018 |
| 24 | reg.ru | 8.27/10 | 85 | 180 | Jul 2022 |
| 25 | confluent.io | 8.25/10 | 78,000 | 5,981 | Aug 2018 |
| 26 | yubico.com | 8.23/10 | 416,400 | 10,675 | Dec 2021 |
| 27 | thenounproject.com | 8.22/10 | 445,500 | 141,715 | Aug 2018 |
| 28 | scipy.org | 8.19/10 | 5,300 | 3,414 | Jun 2018 |
| 29 | luc.edu | 8.11/10 | 178,000 | 40,020 | Aug 2018 |
| 30 | palletsprojects.com | 8.10/10 | 2 | 17 | Jan 2019 |
| 31 | connpass.com | 8.09/10 | 1 | 9 | Sep 2021 |
| 32 | thunderbird.net | 8.07/10 | 97,500 | 12,040 | Feb 2023 |
| 33 | amu.edu.pl | 8.05/10 | 990 | 373 | Feb 2024 |
| 34 | chula.ac.th | 7.99/10 | 5,600 | 2,737 | Oct 2022 |
| 35 | osticket.com | 7.93/10 | 2,300 | 585 | Jan 2019 |
| 36 | openaire.eu | 7.87/10 | 1,100 | 475 | Oct 2022 |
| 37 | agcom.it | 7.84/10 | 32 | 312 | Sep 2024 |
| 38 | uberspace.de | 7.81/10 | 14 | 2 | Aug 2018 |
| 39 | ufu.br | 7.73/10 | 330 | 67 | Apr 2024 |
| 40 | epam.com | 7.71/10 | 8,600 | 8,050 | Jul 2021 |
| 41 | dataiku.com | 7.70/10 | 2,300 | 2,660 | Aug 2018 |
| 42 | unc.edu.ar | 7.70/10 | 620 | 954 | May 2024 |
| 43 | bostondynamics.com | 7.69/10 | 22,300 | 10,831 | Jun 2021 |
| 44 | opnsense.org | 7.63/10 | 6,800 | 2,521 | Aug 2018 |
| 45 | acesso.gov.br | 7.57/10 | 330 | 368 | Jun 2025 |
| 46 | cs-cart.com | 7.54/10 | 2,300 | 1,189 | Aug 2018 |
| 47 | pygments.org | 7.53/10 | 130 | 38 | Aug 2018 |
| 48 | roundcube.net | 7.46/10 | 5,600 | 1,066 | Nov 2024 |
| 49 | pubg.com | 7.46/10 | 34,000 | 8,401 | Jul 2019 |
| 50 | supervisord.org | 7.39/10 | 4,800 | 63 | Jun 2018 |
| 51 | python-guide.org | 7.39/10 | - | - | Aug 2018 |
| 52 | pypy.org | 7.34/10 | 87 | 76 | Aug 2018 |
| 53 | irssi.org | 7.33/10 | 310 | 88 | Sep 2022 |
| 54 | linaro.org | 7.24/10 | 260 | 97 | Jan 2024 |
| 55 | dask.org | 7.22/10 | 860 | 61 | Jan 2019 |
| 56 | tweepy.org | 7.17/10 | 59 | 17 | Aug 2018 |
| 57 | puri.sm | 7.12/10 | 14,300 | 2,693 | Feb 2019 |
| 58 | telecom-paris.fr | 7.11/10 | 120 | 310 | Nov 2022 |
| 59 | saltproject.io | 7.08/10 | 320 | 61 | Jun 2021 |
| 60 | imio.be | 7.03/10 | - | - | Aug 2022 |
| 61 | carpentries.org | 7.03/10 | 470 | 123 | Dec 2020 |
| 62 | libuv.org | 7.02/10 | 22 | 7 | Feb 2019 |
| 63 | pylonsproject.org | 7.02/10 | 470 | 25 | Aug 2018 |
| 64 | mirantis.com | 7.02/10 | 2,900 | 1,501 | Nov 2021 |
| 65 | fabfile.org | 7.02/10 | 590 | 44 | Jun 2018 |
| 66 | servicos.gov.br | 7.02/10 | 5 | 18 | May 2019 |
| 67 | cryptpad.org | 7.01/10 | 940 | 61 | Nov 2022 |
| 68 | terra.money | 7.01/10 | 660 | 71 | Feb 2022 |
| 69 | wazuh.com | 6.97/10 | 5,300 | 2,301 | Jan 2019 |
| 70 | scikit-image.org | 6.97/10 | 4,000 | 1,210 | Aug 2018 |
| 71 | ousd.org | 6.94/10 | 23,300 | 8,381 | May 2026 |
| 72 | mixxx.org | 6.92/10 | 7,300 | 2,146 | Jul 2021 |
| 73 | open-contracting.org | 6.88/10 | 3,100 | 203 | Jul 2019 |
| 74 | gromacs.org | 6.85/10 | 350 | 83 | Dec 2018 |
| 75 | geonetwork-opensource.org | 6.78/10 | 26 | 8 | Apr 2019 |
| 76 | graphcore.ai | 6.75/10 | 310 | 294 | Mar 2022 |
| 77 | d2l.ai | 6.73/10 | 7,300 | 5,030 | Apr 2019 |
| 78 | htwsaar.de | 6.72/10 | 50 | 86 | Dec 2020 |
| 79 | cloud-init.io | 6.71/10 | 83 | 41 | Mar 2024 |
| 80 | mapserver.org | 6.68/10 | 450 | 346 | Dec 2016 |
| 81 | readthedocs-hosted.com | 6.66/10 | - | - | Feb 2019 |
| 82 | usm.cl | 6.65/10 | 630 | 825 | Aug 2018 |
| 83 | citationstyles.org | 6.49/10 | 73 | 36 | Aug 2018 |
| 84 | translatehouse.org | 6.48/10 | - | - | Apr 2019 |
| 85 | jami.net | 6.43/10 | 1,800 | 680 | May 2023 |
| 86 | vinyl-cache.org | 6.35/10 | - | - | Jan 2026 |
| 87 | hfm-weimar.de | 6.35/10 | 140 | 120 | Jan 2019 |
| 88 | cyrusimap.org | 6.33/10 | 300 | 39 | Jul 2019 |
| 89 | ultraleap.com | 6.28/10 | - | - | Nov 2021 |
| 90 | paytronix.com | 6.26/10 | 6,400 | 2,990 | Oct 2022 |
| 91 | docker.jp | 6.13/10 | - | - | Aug 2018 |
| 92 | mlc.ai | 6.01/10 | 150 | 15 | Aug 2022 |
| 93 | panda3d.org | 5.88/10 | 790 | 94 | Dec 2020 |
| 94 | openenergymonitor.org | 5.87/10 | 62 | 61 | Feb 2023 |
| 95 | destination-earth.eu | 5.83/10 | 3,300 | 189 | Feb 2025 |
| 96 | w3af.org | 5.70/10 | - | - | Aug 2022 |
| 97 | hangfire.io | 5.70/10 | 1,700 | 1,595 | Aug 2018 |
| 98 | num.edu.mn | 5.66/10 | - | - | Jul 2023 |
| 99 | clo3d.com | 5.65/10 | 174,300 | 1,090 | Jun 2024 |
| 100 | quantecon.org | 5.57/10 | 300 | 52 | 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).