Websites Powered by YUI
881,163 websites tracked using YUI (JavaScript libraries) · clarle.github.io
YUI is a JavaScript library used to add functionality to web pages. Its official site is clarle.github.io. PoweredBy tracks the websites that use YUI across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the javascript libraries ecosystem.
Usage trend
100K
200K
300K
Apr 2018
May 2020
May 2022
Jun 2024
Jun 2026
Domains observed using YUI in each month's HTTP Archive crawl,
Apr 2018 to Jun 2026 · peak 290,944 in Oct 2024. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.6 s
INP 50 ms
CLS 0
TTFB 500 ms
Median site among 278,335 YUI sites with Chrome UX data, p75 values, Jun 2026.
Top countries
United States
179,743
United Kingdom
34,441
Canada
26,943
Australia
21,473
India
16,285
Germany
14,312
France
12,463
Spain
11,638
Sites using YUI by audience country, Chrome UX Report.
Top sites by authority
9+
12% · 43 of 372 sites
8+
10% · 793 of 7,677 sites
7+
6% · 2,639 of 45,712 sites
6+
4% · 4,457 of 110,136 sites
5+
3% · 6,973 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running YUI in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using YUI
| # | 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 | nih.gov | 9.44/10 | 301,200 | 37,339 | Aug 2018 |
| 3 | blogspot.com | 9.39/10 | - | - | Aug 2018 |
| 4 | paypal.com | 9.36/10 | 4,830,900 | 336,712 | Aug 2018 |
| 5 | yahoo.com | 9.27/10 | 16,064,700 | 10,883,592 | Aug 2018 |
| 6 | who.int | 9.26/10 | 3,114,700 | 778,407 | Dec 2020 |
| 7 | harvard.edu | 9.24/10 | 472,900 | 13,570 | Aug 2018 |
| 8 | bund.de | 9.23/10 | - | - | Aug 2018 |
| 9 | ca.gov | 9.23/10 | 1,457,100 | 28,722 | Aug 2018 |
| 10 | apache.org | 9.21/10 | 35,700 | 6,177 | Aug 2022 |
| 11 | un.org | 9.21/10 | 2,209,200 | 439,253 | Aug 2018 |
| 12 | stanford.edu | 9.19/10 | 3,302,700 | 5,160 | Aug 2018 |
| 13 | mit.edu | 9.18/10 | 161,200 | 27,360 | Aug 2018 |
| 14 | cnn.com | 9.16/10 | 15,960,900 | 3,032,217 | Nov 2022 |
| 15 | yahoo.co.jp | 9.16/10 | 23,900 | 128 | Aug 2018 |
| 16 | nasa.gov | 9.15/10 | 2,715,500 | 372,280 | Aug 2018 |
| 17 | usda.gov | 9.14/10 | 476,600 | 147,178 | Oct 2018 |
| 18 | ibm.com | 9.13/10 | 11,139,500 | 518,522 | Jun 2018 |
| 19 | squarespace.com | 9.11/10 | 240,100 | 36,138 | Jun 2018 |
| 20 | ft.com | 9.10/10 | 698,500 | 489,218 | May 2020 |
| 21 | berkeley.edu | 9.10/10 | 166,900 | 5,412 | Aug 2018 |
| 22 | cornell.edu | 9.10/10 | 242,100 | 23,854 | Aug 2018 |
| 23 | etsy.com | 9.09/10 | 22,475,200 | 11,513,779 | Jun 2023 |
| 24 | mckinsey.com | 9.09/10 | 530,900 | 291,302 | Aug 2022 |
| 25 | sagepub.com | 9.07/10 | 31,500 | 2,940 | Aug 2018 |
| 26 | noaa.gov | 9.07/10 | 1,258,800 | 144,262 | Aug 2018 |
| 27 | bandcamp.com | 9.06/10 | 44,100 | 31,391 | Jun 2018 |
| 28 | unesco.org | 9.06/10 | 294,400 | 71,304 | Apr 2019 |
| 29 | frontiersin.org | 9.06/10 | 869,400 | 706,983 | Jan 2019 |
| 30 | tripadvisor.com | 9.05/10 | 163,456,300 | 21,362,855 | Dec 2020 |
| 31 | ed.gov | 9.05/10 | 1,229,500 | 99,935 | Aug 2018 |
| 32 | iso.org | 9.04/10 | 663,700 | 64,103 | Oct 2022 |
| 33 | cambridge.org | 9.04/10 | 633,100 | 518,312 | Aug 2023 |
| 34 | mayoclinic.org | 9.04/10 | 61,726,300 | 4,533,343 | Aug 2023 |
| 35 | ny.gov | 9.04/10 | 691,300 | 55,212 | Aug 2018 |
| 36 | ieee.org | 9.02/10 | 37,200 | 20,161 | Aug 2018 |
| 37 | columbia.edu | 9.02/10 | 770,900 | 41,349 | Aug 2018 |
| 38 | unicef.org | 9.01/10 | 286,700 | 135,578 | Aug 2018 |
| 39 | psu.edu | 9.01/10 | 581,600 | 94,595 | Aug 2018 |
| 40 | umich.edu | 9.01/10 | 36,500 | 1,974 | Aug 2018 |
| 41 | yale.edu | 9.01/10 | 177,900 | 6,885 | Aug 2018 |
| 42 | uk.com | 9.00/10 | 2 | 12 | Jan 2019 |
| 43 | upenn.edu | 9.00/10 | 179,200 | 5,457 | Aug 2018 |
| 44 | va.gov | 8.99/10 | 3,933,900 | 1,032,734 | Aug 2018 |
| 45 | marriott.com | 8.98/10 | 13,740,800 | 1,485,399 | Aug 2018 |
| 46 | ox.ac.uk | 8.98/10 | 214,200 | 93,016 | Apr 2019 |
| 47 | princeton.edu | 8.98/10 | 246,800 | 50,700 | Jan 2019 |
| 48 | texas.gov | 8.98/10 | 856,400 | 43,777 | Aug 2018 |
| 49 | cmu.edu | 8.97/10 | 436,800 | 81,774 | Aug 2018 |
| 50 | umn.edu | 8.96/10 | 78 | 49 | Aug 2018 |
| 51 | change.org | 8.96/10 | 209,800 | 138,005 | Aug 2018 |
| 52 | nsw.gov.au | 8.95/10 | 75,300 | 73,181 | Aug 2018 |
| 53 | ethz.ch | 8.95/10 | 12,900 | 11,869 | Aug 2018 |
| 54 | sakura.ne.jp | 8.95/10 | - | - | Aug 2018 |
| 55 | economist.com | 8.94/10 | 418,800 | 155,666 | Jun 2026 |
| 56 | fao.org | 8.93/10 | 213,900 | 125,762 | Aug 2018 |
| 57 | ucla.edu | 8.93/10 | 412,200 | 14,756 | Aug 2018 |
| 58 | jhu.edu | 8.93/10 | 177,400 | 6,915 | Aug 2018 |
| 59 | wa.gov | 8.93/10 | 719,800 | 8,195 | Apr 2019 |
| 60 | bayern.de | 8.92/10 | 12,500 | 512 | Aug 2022 |
| 61 | utexas.edu | 8.92/10 | 503,000 | 11,984 | Aug 2018 |
| 62 | uchicago.edu | 8.92/10 | 63,700 | 10,331 | Aug 2018 |
| 63 | gov.ru | 8.91/10 | 2,700 | 216 | Aug 2018 |
| 64 | nyu.edu | 8.90/10 | 674,000 | 142,032 | Aug 2018 |
| 65 | usc.edu | 8.89/10 | 361,000 | 14,987 | Aug 2018 |
| 66 | iheart.com | 8.88/10 | 1,899,600 | 677,344 | Aug 2018 |
| 67 | moodle.org | 8.88/10 | 20,900 | 11,079 | Jun 2018 |
| 68 | jimdofree.com | 8.88/10 | - | - | Mar 2020 |
| 69 | duke.edu | 8.88/10 | 193,100 | 821 | Aug 2018 |
| 70 | fema.gov | 8.88/10 | 633,000 | 225,330 | Dec 2022 |
| 71 | azurewebsites.net | 8.87/10 | - | - | Sep 2020 |
| 72 | cam.ac.uk | 8.87/10 | 208,200 | 35,354 | Aug 2018 |
| 73 | us.com | 8.86/10 | 32 | 9 | Jan 2019 |
| 74 | coe.int | 8.86/10 | 138,700 | 44,475 | Jun 2018 |
| 75 | purdue.edu | 8.86/10 | 744,800 | 169,159 | Aug 2018 |
| 76 | northwestern.edu | 8.86/10 | 193,400 | 45,922 | Aug 2018 |
| 77 | uspto.gov | 8.86/10 | 808,300 | 111,978 | Aug 2018 |
| 78 | cancer.gov | 8.86/10 | 4,680,800 | 325,886 | Aug 2018 |
| 79 | heart.org | 8.85/10 | 3,203,900 | 465,174 | Aug 2018 |
| 80 | umd.edu | 8.85/10 | 253,300 | 15,690 | Aug 2018 |
| 81 | acs.org | 8.85/10 | 801,500 | 102,932 | Aug 2018 |
| 82 | buzzfeed.com | 8.84/10 | 2,987,800 | 1,687,461 | Aug 2018 |
| 83 | ufl.edu | 8.84/10 | 241,600 | 3,624 | Apr 2020 |
| 84 | ucsd.edu | 8.84/10 | 48,100 | 2,389 | Aug 2018 |
| 85 | ubc.ca | 8.84/10 | 14,500 | 2,813 | Aug 2018 |
| 86 | redhat.com | 8.83/10 | 290,500 | 84,884 | Jun 2020 |
| 87 | nrw.de | 8.83/10 | - | - | Aug 2018 |
| 88 | illinois.edu | 8.83/10 | 47,000 | 4,065 | Aug 2018 |
| 89 | ct.gov | 8.83/10 | 4,800 | 35 | Dec 2020 |
| 90 | unc.edu | 8.83/10 | 342,800 | 27,928 | Aug 2018 |
| 91 | uscourts.gov | 8.83/10 | 1,639,600 | 209,380 | Aug 2018 |
| 92 | tokyo.lg.jp | 8.83/10 | - | - | May 2023 |
| 93 | ubuntu.com | 8.82/10 | 321,700 | 67,096 | Aug 2018 |
| 94 | youradchoices.ca | 8.82/10 | 63 | 78 | Apr 2019 |
| 95 | maryland.gov | 8.82/10 | 173,300 | 7,828 | Aug 2018 |
| 96 | cnrs.fr | 8.82/10 | 4,300 | 2,992 | Oct 2024 |
| 97 | virginia.gov | 8.82/10 | 339,900 | 20,933 | Aug 2018 |
| 98 | it.com | 8.81/10 | - | - | Aug 2024 |
| 99 | garanteprivacy.it | 8.81/10 | 1,000 | 328 | Jun 2018 |
| 100 | utoronto.ca | 8.81/10 | 42,800 | 10,094 | 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) →