Websites Powered by ClientJS
8,196 websites tracked using ClientJS (JavaScript libraries) · clientjs.org
ClientJS is a JavaScript library used to add functionality to web pages. Its official site is clientjs.org. PoweredBy tracks the websites that use ClientJS 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
1K
2K
3K
4K
Jul 2021
Oct 2022
Jan 2024
Mar 2025
Jun 2026
Domains observed using ClientJS in each month's HTTP Archive crawl,
Jul 2021 to Jun 2026 · peak 3,370 in Sep 2022. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 2 s
INP 100 ms
CLS 0
TTFB 700 ms
Median site among 3,035 ClientJS sites with Chrome UX data, p75 values, Jun 2026.
Top countries
United States
1,118
Germany
825
Brazil
774
United Kingdom
702
India
698
France
695
Italy
633
Spain
564
Sites using ClientJS by audience country, Chrome UX Report.
Top sites by authority
9+
<1% · 3 of 372 sites
8+
<1% · 55 of 7,677 sites
7+
<1% · 171 of 45,712 sites
6+
<1% · 254 of 110,136 sites
5+
<1% · 360 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running ClientJS in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using ClientJS
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 101 | utc.edu | 7.46/10 | 126,200 | 37,881 | Apr 2025 |
| 102 | lut.fi | 7.46/10 | 580 | 281 | Apr 2026 |
| 103 | firstthings.com | 7.46/10 | 60,900 | 29,636 | Dec 2025 |
| 104 | saashr.com | 7.45/10 | - | - | Aug 2025 |
| 105 | covidtracking.com | 7.45/10 | 290 | 1,445 | Jul 2021 |
| 106 | napier.ac.uk | 7.44/10 | 3,300 | 1,964 | Apr 2026 |
| 107 | cdac.in | 7.44/10 | 2,200 | 2,662 | May 2023 |
| 108 | univ-lemans.fr | 7.44/10 | 69 | 74 | Apr 2026 |
| 109 | uca.edu | 7.44/10 | 115,000 | 38,254 | Apr 2026 |
| 110 | univ-reims.fr | 7.44/10 | 220 | 380 | Aug 2025 |
| 111 | univ-pau.fr | 7.44/10 | 140 | 134 | Mar 2026 |
| 112 | everbridge.net | 7.43/10 | - | - | Aug 2025 |
| 113 | upct.es | 7.43/10 | 1,000 | 627 | Jun 2026 |
| 114 | u-picardie.fr | 7.43/10 | 360 | 318 | Dec 2025 |
| 115 | thenewslens.com | 7.42/10 | 130 | 411 | Sep 2021 |
| 116 | escp.eu | 7.42/10 | 5,800 | 10,111 | May 2025 |
| 117 | univ-rennes2.fr | 7.42/10 | 360 | 146 | Jan 2026 |
| 118 | huntington.com | 7.40/10 | 1,736,800 | 148,037 | Jul 2021 |
| 119 | clarkson.edu | 7.40/10 | 13,300 | 9,828 | Jul 2025 |
| 120 | umcs.pl | 7.40/10 | 970 | 661 | Jul 2025 |
| 121 | makemytrip.com | 7.39/10 | 633,500 | 540,057 | Sep 2021 |
| 122 | bureauveritas.fr | 7.39/10 | 21 | 109 | Mar 2023 |
| 123 | univ-rennes.fr | 7.39/10 | 580 | 365 | Jun 2023 |
| 124 | uny.ac.id | 7.38/10 | 58 | 114 | Jun 2025 |
| 125 | yupoo.com | 7.34/10 | - | - | Jul 2021 |
| 126 | dataprev.gov.br | 7.34/10 | 17 | 24 | Jul 2021 |
| 127 | uww.edu | 7.34/10 | 199,500 | 53,653 | Sep 2025 |
| 128 | univ-perp.fr | 7.34/10 | 83 | 147 | Feb 2026 |
| 129 | kkbox.com | 7.32/10 | 248,500 | 79,159 | May 2026 |
| 130 | ffr.fr | 7.32/10 | 1,100 | 748 | Apr 2026 |
| 131 | cdjapan.co.jp | 7.32/10 | 10,800 | 19,336 | Feb 2026 |
| 132 | cosme.net | 7.31/10 | 7,400 | 1,530 | Oct 2025 |
| 133 | uha.fr | 7.30/10 | 100 | 133 | Mar 2025 |
| 134 | ukw.edu.pl | 7.29/10 | 48 | 96 | Jun 2025 |
| 135 | internationalsos.com | 7.27/10 | 10,600 | 9,629 | Apr 2024 |
| 136 | engage.it | 7.25/10 | 12 | 231 | Aug 2022 |
| 137 | mavrck.co | 7.22/10 | 31 | 15 | Jul 2021 |
| 138 | latech.edu | 7.22/10 | 56,800 | 24,862 | Feb 2026 |
| 139 | cfdt.fr | 7.20/10 | 310 | 435 | Apr 2026 |
| 140 | ultimatelysocial.com | 7.15/10 | 9 | 53 | Jul 2021 |
| 141 | bancaintesa.rs | 7.11/10 | 1,200 | 382 | Jul 2021 |
| 142 | koszalin.pl | 7.11/10 | 19 | 2 | May 2026 |
| 143 | inesctec.pt | 7.10/10 | 85 | 95 | Jul 2021 |
| 144 | whitman.edu | 7.10/10 | 97,900 | 22,869 | Jun 2025 |
| 145 | itacanotizie.it | 7.09/10 | 21 | 122 | Aug 2022 |
| 146 | arnhem.nl | 7.09/10 | 15 | 60 | Jan 2025 |
| 147 | u-paris2.fr | 7.07/10 | - | - | Jul 2025 |
| 148 | hwupgrade.it | 7.06/10 | 420 | 2,742 | May 2024 |
| 149 | ninjal.ac.jp | 7.06/10 | 240 | 61 | May 2025 |
| 150 | firabarcelona.com | 7.03/10 | 960 | 276 | Jun 2025 |
| 151 | ffessm.fr | 7.03/10 | 28 | 110 | Jul 2021 |
| 152 | exoclick.com | 7.02/10 | 330 | 223 | Feb 2026 |
| 153 | entertimeonline.com | 7.02/10 | 24 | 2 | Feb 2026 |
| 154 | kap.org.tr | 7.02/10 | 130 | 564 | Oct 2025 |
| 155 | sipgate.de | 7.02/10 | 9 | 28 | Oct 2025 |
| 156 | socalgas.com | 7.02/10 | 570,400 | 59,311 | Mar 2025 |
| 157 | lojasrenner.com.br | 7.02/10 | 3,500 | 3,660 | Sep 2024 |
| 158 | lkpp.go.id | 7.02/10 | 47 | 12 | Sep 2024 |
| 159 | msb.gov.tr | 7.02/10 | 480 | 549 | Jan 2025 |
| 160 | vtc.vn | 7.02/10 | 21 | 1 | Feb 2022 |
| 161 | tim.com.br | 7.02/10 | 3,500 | 1,704 | Jul 2021 |
| 162 | csufresno.edu | 7.02/10 | - | - | Jul 2025 |
| 163 | univ-littoral.fr | 7.02/10 | 66 | 119 | Jul 2025 |
| 164 | expertisefrance.fr | 7.02/10 | 150 | 156 | Aug 2025 |
| 165 | univ-ubs.fr | 7.02/10 | 42 | 157 | May 2025 |
| 166 | ana.gov.br | 7.02/10 | 210 | 38 | Sep 2024 |
| 167 | lasicilia.it | 7.02/10 | 220 | 684 | Mar 2023 |
| 168 | prz.edu.pl | 7.02/10 | 3 | 17 | Mar 2025 |
| 169 | hig.se | 7.02/10 | 100 | 177 | Aug 2022 |
| 170 | cbos.pl | 7.02/10 | 210 | 47 | Jun 2026 |
| 171 | umlub.pl | 7.02/10 | - | - | Jun 2026 |
| 172 | ebc.net.tw | 6.98/10 | - | 7 | Feb 2023 |
| 173 | oneadvanced.com | 6.97/10 | 4,400 | 4,099 | Jun 2022 |
| 174 | insa-toulouse.fr | 6.97/10 | 240 | 81 | May 2026 |
| 175 | boticario.com.br | 6.92/10 | 2,600 | 3,656 | Jul 2021 |
| 176 | thaihealth.or.th | 6.91/10 | - | 10 | Jan 2023 |
| 177 | weathercn.com | 6.90/10 | - | - | Jul 2021 |
| 178 | agri.ee | 6.87/10 | 2 | 6 | Oct 2025 |
| 179 | inside.com.tw | 6.87/10 | 19 | 191 | Oct 2021 |
| 180 | utt.fr | 6.87/10 | 130 | 139 | Jan 2026 |
| 181 | dzhw.eu | 6.84/10 | 3 | 15 | Apr 2023 |
| 182 | puce.edu.ec | 6.84/10 | 1,700 | 992 | May 2025 |
| 183 | vietcombank.com.vn | 6.82/10 | 44,400 | 8,140 | Dec 2023 |
| 184 | managertoday.com.tw | 6.79/10 | 93 | 322 | Oct 2021 |
| 185 | celtx.com | 6.78/10 | 17,900 | 3,180 | Feb 2024 |
| 186 | agglo-larochelle.fr | 6.78/10 | 13 | 83 | Oct 2025 |
| 187 | accuwebhosting.com | 6.75/10 | 7,600 | 4,334 | May 2025 |
| 188 | atlasante.fr | 6.74/10 | - | - | Mar 2026 |
| 189 | nif.no | 6.71/10 | - | - | Jul 2021 |
| 190 | santafe.gov.ar | 6.71/10 | 2,400 | 5,121 | Jan 2026 |
| 191 | univ-lehavre.fr | 6.70/10 | 44 | 134 | Jun 2025 |
| 192 | insa-rennes.fr | 6.68/10 | 310 | 93 | Apr 2026 |
| 193 | chiayi.gov.tw | 6.67/10 | 10 | 10 | Nov 2025 |
| 194 | ube.fr | 6.65/10 | 310 | 112 | Jan 2026 |
| 195 | wit.edu | 6.64/10 | 29,900 | 9,032 | Jun 2026 |
| 196 | wsb.pl | 6.64/10 | - | - | Aug 2025 |
| 197 | kbcard.com | 6.61/10 | - | - | Sep 2022 |
| 198 | vub.sk | 6.60/10 | 680 | 345 | Jan 2023 |
| 199 | athinorama.gr | 6.60/10 | 3,000 | 4,543 | Jan 2022 |
| 200 | livesicilia.it | 6.59/10 | 270 | 927 | Jul 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) →
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