Websites Powered by Pure CSS
31,216 websites tracked using Pure CSS (UI frameworks) · purecss.io
Pure CSS is a UI/CSS framework used to style and lay out the site. Its official site is purecss.io. PoweredBy tracks the websites that use Pure CSS across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the ui frameworks ecosystem.
Usage trend
5K
10K
15K
Apr 2018
May 2020
Jul 2022
Aug 2024
Sep 2026
Domains observed using Pure CSS in each month's HTTP Archive crawl,
Apr 2018 to Sep 2026 · peak 12,842 in Mar 2023. 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 10,753 Pure CSS sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
4,080
United Kingdom
1,500
Germany
1,414
India
1,342
France
1,175
Japan
1,121
Italy
1,063
Netherlands
1,039
Sites using Pure CSS by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Healthcare | 0.12% | 130 |
| Arts and entertainment | 0.11% | 45 |
| Education | 0.09% | 47 |
| Professional services | 0.09% | 35 |
| Automotive | 0.08% | 58 |
| Government | 0.06% | 5 |
| News and media | 0.06% | 24 |
| Travel and hospitality | 0.04% | 30 |
| Restaurants and food | 0.04% | 53 |
| Pets and animals | 0.04% | 1 |
| Finance and insurance | 0.04% | 6 |
| Sports and fitness | 0.04% | 6 |
Share of each industry's websites with a detected stack that use Pure CSS; industries come from what sites declare in their own structured data.
Top sites by authority
9+
4% · 16 of 372 sites
8+
1% · 109 of 7,677 sites
7+
<1% · 251 of 45,712 sites
6+
<1% · 379 of 110,136 sites
5+
<1% · 568 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Pure CSS in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Pure CSS
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | cloudfront.net | 9.47/10 | - | - | Dec 2020 |
| 2 | nih.gov | 9.44/10 | 298,300 | 34,546 | Aug 2025 |
| 3 | github.io | 9.43/10 | 1,800 | 1 | Aug 2018 |
| 4 | qq.com | 9.34/10 | 2,200 | 163 | Feb 2020 |
| 5 | zoom.us | 9.29/10 | 681,100 | 57,492 | Mar 2021 |
| 6 | yahoo.com | 9.27/10 | 15,772,000 | 8,807,788 | Aug 2018 |
| 7 | who.int | 9.26/10 | 3,114,700 | 778,407 | Aug 2022 |
| 8 | ca.gov | 9.23/10 | 1,455,600 | 26,086 | Aug 2018 |
| 9 | stanford.edu | 9.19/10 | 3,302,700 | 5,160 | Aug 2018 |
| 10 | acm.org | 9.05/10 | 24,100 | 17,765 | Jul 2021 |
| 11 | free.fr | 9.05/10 | 3,400 | 1,262 | Mar 2022 |
| 12 | ed.gov | 9.05/10 | 1,225,500 | 85,711 | Jul 2019 |
| 13 | wpengine.com | 9.04/10 | 66,200 | 15,765 | Oct 2022 |
| 14 | ieee.org | 9.02/10 | 37,200 | 20,161 | Aug 2018 |
| 15 | unicef.org | 9.01/10 | 286,700 | 135,578 | Apr 2023 |
| 16 | uk.com | 9.00/10 | 2 | 12 | Jan 2019 |
| 17 | ox.ac.uk | 8.98/10 | 214,200 | 93,016 | Aug 2022 |
| 18 | nsw.gov.au | 8.95/10 | 75,300 | 73,181 | Aug 2018 |
| 19 | mynavi.jp | 8.95/10 | 81 | 14 | Jul 2021 |
| 20 | wa.gov | 8.93/10 | 719,700 | 7,869 | Feb 2026 |
| 21 | utexas.edu | 8.92/10 | 502,800 | 11,092 | Aug 2019 |
| 22 | jimdofree.com | 8.88/10 | - | - | Aug 2023 |
| 23 | azurewebsites.net | 8.87/10 | - | - | Jan 2019 |
| 24 | appspot.com | 8.87/10 | - | - | Dec 2016 |
| 25 | illinois.edu | 8.83/10 | 47,000 | 3,612 | Oct 2022 |
| 26 | ucdavis.edu | 8.83/10 | 381,100 | 81,485 | Mar 2025 |
| 27 | unc.edu | 8.83/10 | 341,300 | 24,562 | Apr 2019 |
| 28 | js.org | 8.82/10 | 2 | 5 | Aug 2018 |
| 29 | cnrs.fr | 8.82/10 | 4,300 | 2,992 | Apr 2019 |
| 30 | mass.gov | 8.82/10 | 3,516,300 | 1,069,518 | Aug 2018 |
| 31 | it.com | 8.81/10 | - | - | Aug 2025 |
| 32 | fc2.com | 8.80/10 | 5,100 | 10 | Feb 2020 |
| 33 | utah.gov | 8.80/10 | 129,700 | 22,115 | Jun 2025 |
| 34 | mo.gov | 8.75/10 | 135,400 | 9,347 | May 2026 |
| 35 | justgiving.com | 8.71/10 | 3,100 | 5,043 | Aug 2017 |
| 36 | ucsb.edu | 8.71/10 | 73,800 | 11,445 | Aug 2018 |
| 37 | biglobe.ne.jp | 8.71/10 | 1 | 2 | Aug 2018 |
| 38 | u-tokyo.ac.jp | 8.71/10 | 25,200 | 7,795 | Aug 2022 |
| 39 | lse.ac.uk | 8.67/10 | 60,400 | 38,566 | Oct 2024 |
| 40 | indiana.edu | 8.67/10 | - | - | Aug 2022 |
| 41 | uw.edu | 8.66/10 | - | 3 | Aug 2022 |
| 42 | cuny.edu | 8.65/10 | 293,300 | 49,477 | Mar 2023 |
| 43 | usp.br | 8.65/10 | 1 | 19 | Aug 2022 |
| 44 | autodesk.com | 8.63/10 | 742,400 | 114,708 | Jan 2021 |
| 45 | oregonstate.edu | 8.63/10 | 88,600 | 10,954 | May 2019 |
| 46 | usaid.gov | 8.61/10 | 11,700 | 5,261 | Oct 2021 |
| 47 | developpement-durable.gouv.fr | 8.60/10 | - | - | Aug 2022 |
| 48 | rug.nl | 8.60/10 | 11,600 | 9,018 | Aug 2024 |
| 49 | salesforce-sites.com | 8.58/10 | - | - | Jul 2023 |
| 50 | warwick.ac.uk | 8.58/10 | 45,500 | 33,900 | Aug 2018 |
| 51 | univie.ac.at | 8.58/10 | 10,000 | 1,103 | Aug 2018 |
| 52 | unam.mx | 8.58/10 | 1,900 | 1,196 | Aug 2018 |
| 53 | neocities.org | 8.57/10 | 22,900 | 5,318 | May 2021 |
| 54 | kyoto-u.ac.jp | 8.57/10 | 4,800 | 3,548 | Oct 2024 |
| 55 | cuni.cz | 8.56/10 | 4,400 | 1,637 | Jul 2019 |
| 56 | overcast.fm | 8.53/10 | 4,300 | 458 | May 2017 |
| 57 | wmo.int | 8.53/10 | 104,500 | 28,334 | Dec 2022 |
| 58 | ibge.gov.br | 8.51/10 | 4,400 | 4,506 | Oct 2017 |
| 59 | hostingersite.com | 8.49/10 | - | - | Mar 2026 |
| 60 | coca-cola.com | 8.49/10 | 780,500 | 84,974 | Aug 2022 |
| 61 | wfp.org | 8.49/10 | 127,500 | 25,111 | Aug 2018 |
| 62 | uni-koeln.de | 8.49/10 | 1,200 | 427 | Jan 2019 |
| 63 | docs.rs | 8.48/10 | 75,400 | 17,716 | Aug 2018 |
| 64 | strikingly.com | 8.44/10 | 12,600 | 14,735 | Aug 2018 |
| 65 | bremen.de | 8.38/10 | 340 | 509 | Sep 2023 |
| 66 | saitama.lg.jp | 8.38/10 | - | - | Mar 2024 |
| 67 | ugr.es | 8.38/10 | 8,500 | 8,711 | May 2023 |
| 68 | gnupg.org | 8.37/10 | 5,800 | 2,176 | Dec 2022 |
| 69 | pp.ua | 8.37/10 | 22 | 5 | Nov 2022 |
| 70 | unwto.org | 8.37/10 | 750 | 329 | May 2024 |
| 71 | jrc.or.jp | 8.37/10 | 420 | 340 | Nov 2020 |
| 72 | wroc.pl | 8.36/10 | - | - | Jan 2019 |
| 73 | pref.aichi.jp | 8.36/10 | 440 | 254 | Oct 2024 |
| 74 | kinsta.cloud | 8.35/10 | - | - | Jun 2026 |
| 75 | tuwien.ac.at | 8.35/10 | - | - | Dec 2022 |
| 76 | uni-hannover.de | 8.35/10 | 1,300 | 518 | Feb 2026 |
| 77 | uchile.cl | 8.35/10 | 1,900 | 3,976 | May 2020 |
| 78 | uv.es | 8.35/10 | 19,100 | 19,126 | Aug 2022 |
| 79 | haskell.org | 8.34/10 | 19,400 | 3,472 | Apr 2023 |
| 80 | tistory.com | 8.33/10 | 230 | 8 | Aug 2018 |
| 81 | state.or.us | 8.32/10 | - | - | Aug 2018 |
| 82 | rotary.org | 8.30/10 | 73,100 | 17,519 | Oct 2021 |
| 83 | carleton.ca | 8.30/10 | 49,300 | 20,005 | Nov 2023 |
| 84 | firebaseapp.com | 8.27/10 | - | - | Aug 2022 |
| 85 | ou.edu | 8.27/10 | 392,000 | 52,695 | Aug 2018 |
| 86 | fiocruz.br | 8.27/10 | 500 | 722 | Aug 2018 |
| 87 | edf.fr | 8.25/10 | 4,400 | 2,871 | Nov 2018 |
| 88 | nagoya-u.ac.jp | 8.25/10 | 11 | 36 | Jun 2020 |
| 89 | gcs-web.com | 8.22/10 | - | - | Jun 2021 |
| 90 | soton.ac.uk | 8.22/10 | - | - | Oct 2022 |
| 91 | alaska.edu | 8.22/10 | 50,600 | 7,766 | Nov 2022 |
| 92 | uoguelph.ca | 8.22/10 | 21,400 | 14,311 | Apr 2019 |
| 93 | ufsc.br | 8.22/10 | 120 | 86 | Sep 2023 |
| 94 | uba.ar | 8.21/10 | 670 | 586 | Aug 2020 |
| 95 | uc.pt | 8.21/10 | 3,500 | 1,118 | Nov 2023 |
| 96 | nedic.ca | 8.16/10 | 99 | 351 | Aug 2019 |
| 97 | jku.at | 8.13/10 | 1,500 | 1,119 | Dec 2022 |
| 98 | onrender.com | 8.07/10 | - | - | Nov 2023 |
| 99 | ucc.ie | 8.07/10 | 16,700 | 13,116 | Sep 2024 |
| 100 | cambridgeenglish.org | 8.06/10 | 114,000 | 80,936 | May 2021 |
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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