Websites Powered by HeadJS
22,262 websites tracked using HeadJS (JavaScript libraries) · headjs.com
HeadJS is a JavaScript library used to add functionality to web pages. Its official site is headjs.com. PoweredBy tracks the websites that use HeadJS 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
5K
10K
15K
Apr 2018
Jun 2020
Jul 2022
Sep 2024
Oct 2026
Domains observed using HeadJS in each month's HTTP Archive crawl,
Apr 2018 to Oct 2026 · peak 13,269 in Aug 2022. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.6 s
INP 75 ms
CLS 0
TTFB 600 ms
Median site among 9,493 HeadJS sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
4,298
Japan
1,479
Germany
1,299
United Kingdom
1,049
India
972
Poland
960
France
889
Canada
799
Sites using HeadJS by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Education | 0.32% | 204 |
| Travel and hospitality | 0.11% | 91 |
| Government | 0.10% | 9 |
| Healthcare | 0.06% | 74 |
| Non-profit and religious | 0.05% | 5 |
| Finance and insurance | 0.04% | 8 |
| Pets and animals | 0.03% | 1 |
| Arts and entertainment | 0.03% | 13 |
| Home and construction | 0.02% | 13 |
| Retail | 0.02% | 65 |
| Blogs and publishing | 0.01% | 4 |
| Professional services | 0.01% | 7 |
Share of each industry's websites with a detected stack that use HeadJS; industries come from what sites declare in their own structured data.
Top sites by authority
9+
<1% · 3 of 372 sites
8+
<1% · 59 of 7,677 sites
7+
<1% · 148 of 45,712 sites
6+
<1% · 226 of 110,136 sites
5+
<1% · 322 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running HeadJS in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using HeadJS
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | blogspot.com | 9.39/10 | - | - | Aug 2018 |
| 2 | rakuten.co.jp | 9.11/10 | 9,200 | 1,689 | Aug 2018 |
| 3 | uk.com | 9.00/10 | 2 | 12 | Jan 2019 |
| 4 | sakura.ne.jp | 8.95/10 | - | - | Aug 2018 |
| 5 | ucla.edu | 8.93/10 | 410,700 | 13,782 | Apr 2019 |
| 6 | azurewebsites.net | 8.87/10 | - | - | Jul 2019 |
| 7 | site.com | 8.86/10 | - | 1 | Apr 2023 |
| 8 | asu.edu | 8.82/10 | 144,500 | 3,666 | Aug 2020 |
| 9 | cnrs.fr | 8.82/10 | 4,300 | 2,992 | Aug 2018 |
| 10 | fc2.com | 8.80/10 | 5,100 | 10 | Aug 2018 |
| 11 | pa.gov | 8.78/10 | 3,807,400 | 1,087,569 | Aug 2018 |
| 12 | michigan.gov | 8.78/10 | 3,492,800 | 959,849 | Aug 2018 |
| 13 | rutgers.edu | 8.75/10 | 146,600 | 28,567 | Jan 2021 |
| 14 | illinois.gov | 8.73/10 | 521,900 | 65,410 | Dec 2022 |
| 15 | u-tokyo.ac.jp | 8.71/10 | 25,200 | 7,795 | Aug 2018 |
| 16 | in.net | 8.69/10 | - | - | Apr 2020 |
| 17 | xsrv.jp | 8.68/10 | - | - | Aug 2018 |
| 18 | lse.ac.uk | 8.67/10 | 60,400 | 38,566 | Aug 2022 |
| 19 | altervista.org | 8.66/10 | - | - | Sep 2021 |
| 20 | main.jp | 8.64/10 | - | - | Aug 2018 |
| 21 | nh.gov | 8.63/10 | 193,800 | 6,279 | Feb 2024 |
| 22 | home.pl | 8.61/10 | 210 | 80 | Oct 2021 |
| 23 | ri.gov | 8.59/10 | 305,500 | 10,044 | Aug 2018 |
| 24 | krakow.pl | 8.59/10 | 690 | 649 | Aug 2018 |
| 25 | salesforce-sites.com | 8.58/10 | - | - | Apr 2023 |
| 26 | unam.mx | 8.58/10 | 1,900 | 1,196 | Aug 2018 |
| 27 | neocities.org | 8.57/10 | 22,900 | 5,318 | Jul 2026 |
| 28 | dhl.com | 8.56/10 | 1,187,200 | 132,595 | Apr 2026 |
| 29 | tue.nl | 8.55/10 | 5,600 | 3,367 | Nov 2021 |
| 30 | lolipop.jp | 8.54/10 | 11 | 20 | Aug 2018 |
| 31 | spb.ru | 8.53/10 | - | - | Jan 2019 |
| 32 | jp.net | 8.52/10 | 66 | 7 | Aug 2018 |
| 33 | coocan.jp | 8.51/10 | - | - | Jan 2019 |
| 34 | uni-goettingen.de | 8.49/10 | 6,400 | 3,874 | Jan 2019 |
| 35 | k-state.edu | 8.45/10 | 237,500 | 61,630 | Aug 2018 |
| 36 | inserm.fr | 8.40/10 | 3,100 | 2,265 | May 2019 |
| 37 | tohoku.ac.jp | 8.38/10 | 2,300 | 1,759 | Dec 2020 |
| 38 | jpn.com | 8.36/10 | - | - | Jan 2019 |
| 39 | udc.es | 8.29/10 | 280 | 628 | Oct 2020 |
| 40 | kyushu-u.ac.jp | 8.28/10 | 680 | 731 | Mar 2025 |
| 41 | hostnet.nl | 8.27/10 | 64 | 40 | Aug 2022 |
| 42 | bindsite.jp | 8.27/10 | - | - | Aug 2018 |
| 43 | ulisboa.pt | 8.25/10 | 6,100 | 1,009 | Jan 2019 |
| 44 | ilfattoquotidiano.it | 8.25/10 | 6,500 | 8,927 | Jun 2018 |
| 45 | nagoya-u.ac.jp | 8.25/10 | 11 | 36 | Aug 2018 |
| 46 | epo.org | 8.24/10 | 23,400 | 7,069 | Jun 2018 |
| 47 | iol.pt | 8.23/10 | 3,500 | 361 | Aug 2018 |
| 48 | smu.edu.sg | 8.23/10 | 3,700 | 1,696 | Jul 2023 |
| 49 | jpmorganchase.com | 8.23/10 | 2,099,200 | 81,852 | Sep 2024 |
| 50 | sheffield.ac.uk | 8.23/10 | 48,800 | 24,975 | Dec 2019 |
| 51 | ufsc.br | 8.22/10 | 120 | 86 | Aug 2018 |
| 52 | hslu.ch | 8.18/10 | 290 | 438 | Jul 2017 |
| 53 | rtp.pt | 8.16/10 | 11,400 | 9,298 | Feb 2020 |
| 54 | health.qld.gov.au | 8.15/10 | 144,600 | 54,940 | Oct 2020 |
| 55 | jpn.org | 8.13/10 | - | - | Aug 2018 |
| 56 | books.com.tw | 8.12/10 | 1,700 | 8,673 | Jun 2018 |
| 57 | newschool.edu | 8.11/10 | 61,500 | 35,182 | Aug 2018 |
| 58 | ui.ac.id | 8.04/10 | 190 | 21 | Mar 2023 |
| 59 | bham.ac.uk | 8.02/10 | - | - | Jul 2020 |
| 60 | hec.ca | 7.99/10 | 4,600 | 2,911 | Oct 2021 |
| 61 | ltu.se | 7.91/10 | 670 | 766 | Aug 2022 |
| 62 | ucr.ac.cr | 7.90/10 | 3,300 | 1,872 | Oct 2018 |
| 63 | pw.edu.pl | 7.90/10 | 95 | 170 | Oct 2020 |
| 64 | canalplus.com | 7.89/10 | 19,800 | 14,672 | Feb 2020 |
| 65 | carm.es | 7.84/10 | 3,800 | 3,901 | Jul 2019 |
| 66 | noe.gv.at | 7.79/10 | 440 | 638 | Apr 2020 |
| 67 | weblife.me | 7.75/10 | - | - | Aug 2018 |
| 68 | nopcommerce.com | 7.74/10 | 2,900 | 3,427 | Dec 2019 |
| 69 | ifj.org | 7.74/10 | 2,900 | 2,006 | Jan 2019 |
| 70 | uoc.gr | 7.73/10 | 44 | 79 | Mar 2022 |
| 71 | inc-conso.fr | 7.72/10 | 44 | 253 | Jan 2019 |
| 72 | iisc.ac.in | 7.72/10 | 3,800 | 6,692 | Jul 2020 |
| 73 | us.edu.pl | 7.71/10 | 1,000 | 479 | Sep 2018 |
| 74 | ustc.edu.cn | 7.70/10 | - | 1 | Sep 2025 |
| 75 | fit.edu | 7.70/10 | 101,000 | 32,811 | Aug 2018 |
| 76 | parentsquare.com | 7.69/10 | 69,000 | 38,479 | Aug 2024 |
| 77 | bildungsserver.de | 7.69/10 | 910 | 786 | Oct 2017 |
| 78 | polsl.pl | 7.66/10 | 1,100 | 347 | Nov 2021 |
| 79 | prv.pl | 7.66/10 | - | 2 | Oct 2020 |
| 80 | humboldt.edu | 7.65/10 | 92,600 | 14,359 | Dec 2018 |
| 81 | itb.ac.id | 7.65/10 | 2,200 | 780 | May 2020 |
| 82 | nlg.gr | 7.56/10 | 66 | 40 | Sep 2021 |
| 83 | copyright.com | 7.55/10 | 650 | 1,226 | Aug 2018 |
| 84 | pima.gov | 7.55/10 | 257,900 | 72,934 | Aug 2018 |
| 85 | zhp.pl | 7.53/10 | 35 | 46 | Aug 2022 |
| 86 | caterpillar.com | 7.53/10 | 213,300 | 25,884 | Jun 2018 |
| 87 | ipb.ac.id | 7.53/10 | 6,900 | 4,130 | Jul 2021 |
| 88 | cat.com | 7.50/10 | 374,200 | 36,277 | Jun 2018 |
| 89 | tmu.ac.jp | 7.49/10 | 120 | 125 | Aug 2023 |
| 90 | dauphine.fr | 7.47/10 | - | - | Aug 2018 |
| 91 | bindcloud.jp | 7.47/10 | - | - | Aug 2018 |
| 92 | utm.my | 7.47/10 | 4,700 | 609 | Oct 2020 |
| 93 | fieramilano.it | 7.46/10 | 91 | 102 | Nov 2022 |
| 94 | uvsq.fr | 7.46/10 | 320 | 387 | Dec 2020 |
| 95 | ruc.edu.cn | 7.45/10 | 11 | 6 | Aug 2026 |
| 96 | sbg.ac.at | 7.45/10 | - | - | May 2021 |
| 97 | cancercare.org | 7.45/10 | 10,400 | 6,590 | Jun 2022 |
| 98 | aptoide.com | 7.44/10 | - | 3 | Aug 2018 |
| 99 | jakarta.go.id | 7.44/10 | 240 | 52 | Jan 2022 |
| 100 | libertaddigital.com | 7.43/10 | 4,100 | 15,242 | Jan 2017 |
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).