Websites Powered by HeadJS
22,913 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
May 2020
May 2022
Jun 2024
Jun 2026
Domains observed using HeadJS in each month's HTTP Archive crawl,
Apr 2018 to Jun 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 9,381 HeadJS sites with Chrome UX data, p75 values, Jun 2026.
Top countries
United States
4,436
Japan
1,763
Germany
1,490
United Kingdom
1,204
India
1,136
Poland
1,115
France
1,088
Canada
926
Sites using HeadJS by audience country, Chrome UX Report.
Top sites by authority
9+
1% · 5 of 372 sites
8+
<1% · 62 of 7,677 sites
7+
<1% · 163 of 45,712 sites
6+
<1% · 248 of 110,136 sites
5+
<1% · 349 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 | stanford.edu | 9.19/10 | 3,302,700 | 5,160 | Aug 2018 |
| 3 | rakuten.co.jp | 9.11/10 | 9,200 | 1,689 | Aug 2018 |
| 4 | columbia.edu | 9.02/10 | 770,900 | 41,349 | Aug 2018 |
| 5 | uk.com | 9.00/10 | 2 | 12 | Jan 2019 |
| 6 | sakura.ne.jp | 8.95/10 | - | - | Aug 2018 |
| 7 | ucla.edu | 8.93/10 | 412,200 | 14,756 | Apr 2019 |
| 8 | azurewebsites.net | 8.87/10 | - | - | Jul 2019 |
| 9 | site.com | 8.86/10 | - | 1 | Apr 2023 |
| 10 | asu.edu | 8.82/10 | 144,700 | 4,208 | Aug 2020 |
| 11 | cnrs.fr | 8.82/10 | 4,300 | 2,992 | Aug 2018 |
| 12 | fc2.com | 8.80/10 | 5,100 | 10 | Aug 2018 |
| 13 | pa.gov | 8.78/10 | 3,838,500 | 1,368,223 | Aug 2018 |
| 14 | michigan.gov | 8.78/10 | 3,521,000 | 1,176,642 | Aug 2018 |
| 15 | rutgers.edu | 8.75/10 | 147,400 | 31,478 | Jan 2021 |
| 16 | illinois.gov | 8.73/10 | 523,000 | 73,209 | Dec 2022 |
| 17 | u-tokyo.ac.jp | 8.71/10 | 25,200 | 7,795 | Aug 2018 |
| 18 | in.net | 8.69/10 | - | - | Apr 2020 |
| 19 | xsrv.jp | 8.68/10 | - | - | Aug 2018 |
| 20 | lse.ac.uk | 8.67/10 | 60,400 | 38,566 | Aug 2022 |
| 21 | focus.de | 8.65/10 | 10,600 | 10,487 | Aug 2018 |
| 22 | main.jp | 8.64/10 | - | - | Aug 2018 |
| 23 | nh.gov | 8.63/10 | 193,800 | 6,712 | Feb 2024 |
| 24 | home.pl | 8.61/10 | 210 | 80 | Oct 2021 |
| 25 | ri.gov | 8.59/10 | 307,200 | 12,086 | Aug 2018 |
| 26 | krakow.pl | 8.59/10 | 690 | 649 | Aug 2018 |
| 27 | salesforce-sites.com | 8.58/10 | - | - | Apr 2023 |
| 28 | garmin.com | 8.58/10 | 1,027,200 | 249,401 | Aug 2018 |
| 29 | unam.mx | 8.58/10 | 1,900 | 1,196 | Aug 2018 |
| 30 | dhl.com | 8.56/10 | 1,187,200 | 132,595 | Apr 2026 |
| 31 | tue.nl | 8.55/10 | 5,600 | 3,367 | Nov 2021 |
| 32 | lolipop.jp | 8.54/10 | 11 | 20 | Aug 2018 |
| 33 | spb.ru | 8.53/10 | - | - | Jan 2019 |
| 34 | jp.net | 8.52/10 | 66 | 7 | Aug 2018 |
| 35 | coocan.jp | 8.51/10 | - | - | Jan 2019 |
| 36 | uni-goettingen.de | 8.49/10 | 6,400 | 3,874 | Jan 2019 |
| 37 | poznan.pl | 8.47/10 | 320 | 564 | Dec 2021 |
| 38 | k-state.edu | 8.45/10 | 242,700 | 74,729 | Aug 2018 |
| 39 | inserm.fr | 8.40/10 | 3,100 | 2,265 | May 2019 |
| 40 | tohoku.ac.jp | 8.38/10 | 2,300 | 1,759 | Dec 2020 |
| 41 | jpn.com | 8.36/10 | - | - | Jan 2019 |
| 42 | udc.es | 8.29/10 | 280 | 628 | Oct 2020 |
| 43 | kyushu-u.ac.jp | 8.28/10 | 680 | 731 | Mar 2025 |
| 44 | hostnet.nl | 8.27/10 | 64 | 40 | Aug 2022 |
| 45 | bindsite.jp | 8.27/10 | - | - | Aug 2018 |
| 46 | ou.edu | 8.27/10 | 382,900 | 71,501 | Aug 2018 |
| 47 | ulisboa.pt | 8.25/10 | 6,100 | 1,009 | Jan 2019 |
| 48 | ilfattoquotidiano.it | 8.25/10 | 6,500 | 8,927 | Jun 2018 |
| 49 | nagoya-u.ac.jp | 8.25/10 | 11 | 36 | Aug 2018 |
| 50 | epo.org | 8.24/10 | 25,300 | 8,775 | Jun 2018 |
| 51 | iol.pt | 8.23/10 | 3,500 | 361 | Aug 2018 |
| 52 | jpmorganchase.com | 8.23/10 | 2,100,100 | 99,134 | Sep 2024 |
| 53 | sheffield.ac.uk | 8.23/10 | 48,800 | 24,975 | Dec 2019 |
| 54 | ufsc.br | 8.22/10 | 120 | 86 | Aug 2018 |
| 55 | hslu.ch | 8.18/10 | 290 | 438 | Apr 2018 |
| 56 | rtp.pt | 8.16/10 | 11,400 | 9,298 | Feb 2020 |
| 57 | health.qld.gov.au | 8.15/10 | 144,600 | 54,940 | Oct 2020 |
| 58 | jpn.org | 8.13/10 | - | - | Aug 2018 |
| 59 | books.com.tw | 8.12/10 | 1,700 | 8,673 | Jun 2018 |
| 60 | auth.gr | 8.11/10 | 1,900 | 302 | Jan 2023 |
| 61 | ui.ac.id | 8.04/10 | 190 | 21 | Mar 2023 |
| 62 | bham.ac.uk | 8.02/10 | - | - | Jul 2020 |
| 63 | hec.ca | 7.99/10 | 4,600 | 2,911 | Oct 2021 |
| 64 | ltu.se | 7.91/10 | 670 | 766 | Aug 2022 |
| 65 | ucr.ac.cr | 7.90/10 | 3,300 | 1,872 | Oct 2018 |
| 66 | pw.edu.pl | 7.90/10 | 95 | 170 | Oct 2020 |
| 67 | canalplus.com | 7.89/10 | 19,800 | 14,672 | Feb 2020 |
| 68 | carm.es | 7.84/10 | 3,800 | 3,901 | Jul 2019 |
| 69 | ciao.jp | 7.83/10 | - | - | Aug 2018 |
| 70 | ac-versailles.fr | 7.82/10 | 97 | 231 | Nov 2019 |
| 71 | noe.gv.at | 7.79/10 | 440 | 638 | Apr 2020 |
| 72 | fudan.edu.cn | 7.77/10 | 5,000 | 1,339 | May 2023 |
| 73 | weblife.me | 7.75/10 | - | - | Aug 2018 |
| 74 | nopcommerce.com | 7.74/10 | 2,900 | 3,427 | Dec 2019 |
| 75 | ifj.org | 7.74/10 | 2,900 | 2,006 | Jan 2019 |
| 76 | uoc.gr | 7.73/10 | 44 | 79 | Mar 2022 |
| 77 | inc-conso.fr | 7.72/10 | 44 | 253 | Jan 2019 |
| 78 | iisc.ac.in | 7.72/10 | 3,800 | 6,692 | Jul 2020 |
| 79 | us.edu.pl | 7.71/10 | 1,000 | 479 | Sep 2018 |
| 80 | ustc.edu.cn | 7.70/10 | - | 1 | Sep 2025 |
| 81 | fit.edu | 7.70/10 | 101,200 | 37,749 | Aug 2018 |
| 82 | waseda.ac.jp | 7.70/10 | - | - | Dec 2022 |
| 83 | parentsquare.com | 7.69/10 | 85,100 | 42,438 | Aug 2024 |
| 84 | bildungsserver.de | 7.69/10 | 910 | 786 | Apr 2018 |
| 85 | polsl.pl | 7.66/10 | 1,100 | 347 | Nov 2021 |
| 86 | humboldt.edu | 7.65/10 | 92,900 | 19,296 | Dec 2018 |
| 87 | itb.ac.id | 7.65/10 | 2,200 | 780 | May 2020 |
| 88 | nlg.gr | 7.56/10 | 66 | 40 | Sep 2021 |
| 89 | copyright.com | 7.55/10 | 650 | 1,226 | Aug 2018 |
| 90 | pima.gov | 7.55/10 | 274,600 | 84,493 | Aug 2018 |
| 91 | caterpillar.com | 7.53/10 | 223,200 | 31,216 | Jun 2018 |
| 92 | ipb.ac.id | 7.53/10 | 6,900 | 4,130 | Jul 2021 |
| 93 | cat.com | 7.50/10 | 374,200 | 36,277 | Jun 2018 |
| 94 | tmu.ac.jp | 7.49/10 | 120 | 125 | Aug 2023 |
| 95 | dauphine.fr | 7.47/10 | - | - | Aug 2018 |
| 96 | bindcloud.jp | 7.47/10 | - | - | Aug 2018 |
| 97 | utm.my | 7.47/10 | 4,700 | 609 | Oct 2020 |
| 98 | fieramilano.it | 7.46/10 | 91 | 102 | Nov 2022 |
| 99 | uvsq.fr | 7.46/10 | 320 | 387 | Dec 2020 |
| 100 | sbg.ac.at | 7.45/10 | - | - | 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) →