Websites Powered by Lightning
43,870 websites tracked using Lightning (WordPress themes) · lightning.vektor-inc.co.jp
Lightning is a WordPress theme controlling a site's appearance. Its official site is lightning.vektor-inc.co.jp. PoweredBy tracks the websites that use Lightning across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the wordpress themes ecosystem.
Usage trend
10K
20K
30K
Feb 2022
Mar 2023
Apr 2024
May 2025
Jun 2026
Domains observed using Lightning in each month's HTTP Archive crawl,
Feb 2022 to Jun 2026 · peak 20,836 in Oct 2025. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.7 s
INP 25 ms
CLS 0
TTFB 900 ms
Median site among 21,065 Lightning sites with Chrome UX data, p75 values, Jun 2026.
Top countries
Japan
23,422
United States
232
Indonesia
205
Taiwan
198
South Korea
146
India
144
Thailand
142
Italy
132
Sites using Lightning by audience country, Chrome UX Report.
Top sites by authority
9+
<1% · 1 of 372 sites
8+
<1% · 47 of 7,677 sites
7+
<1% · 151 of 45,712 sites
6+
<1% · 241 of 110,136 sites
5+
<1% · 320 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Lightning in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Lightning
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | mhlw.go.jp | 9.08/10 | 15,300 | 12,761 | Aug 2022 |
| 2 | mynavi.jp | 8.95/10 | 81 | 14 | Feb 2022 |
| 3 | sakura.ne.jp | 8.95/10 | - | - | Feb 2022 |
| 4 | azurewebsites.net | 8.87/10 | - | - | Oct 2023 |
| 5 | tokyo.lg.jp | 8.83/10 | - | - | Jan 2023 |
| 6 | mext.go.jp | 8.78/10 | 1,300 | 1,556 | Feb 2022 |
| 7 | u-tokyo.ac.jp | 8.71/10 | 25,200 | 7,795 | Feb 2022 |
| 8 | in.net | 8.69/10 | - | - | Feb 2022 |
| 9 | xsrv.jp | 8.68/10 | - | - | Feb 2022 |
| 10 | main.jp | 8.64/10 | - | - | Feb 2022 |
| 11 | sa.com | 8.58/10 | - | - | Jun 2026 |
| 12 | cnr.it | 8.57/10 | 810 | 1,174 | Nov 2022 |
| 13 | kyoto-u.ac.jp | 8.57/10 | 4,800 | 3,548 | Feb 2022 |
| 14 | osaka.lg.jp | 8.53/10 | - | - | Feb 2024 |
| 15 | jp.net | 8.52/10 | 66 | 7 | May 2022 |
| 16 | keio.ac.jp | 8.52/10 | 9,400 | 1,068 | Jul 2022 |
| 17 | coocan.jp | 8.51/10 | - | - | Aug 2022 |
| 18 | vektor-inc.co.jp | 8.50/10 | - | 5 | Feb 2022 |
| 19 | kobe-u.ac.jp | 8.44/10 | 2,400 | 1,229 | Feb 2022 |
| 20 | us.org | 8.39/10 | - | 2 | Jun 2026 |
| 21 | tohoku.ac.jp | 8.38/10 | 2,300 | 1,759 | Mar 2022 |
| 22 | jpn.com | 8.36/10 | - | - | Feb 2022 |
| 23 | fukuoka.lg.jp | 8.36/10 | - | - | Feb 2022 |
| 24 | med.or.jp | 8.34/10 | 210 | 304 | Feb 2022 |
| 25 | osaka-u.ac.jp | 8.34/10 | 1,900 | 915 | Feb 2022 |
| 26 | city.nagoya.jp | 8.32/10 | 5 | 68 | Dec 2024 |
| 27 | hokudai.ac.jp | 8.30/10 | 390 | 19 | Apr 2022 |
| 28 | nifty.com | 8.29/10 | 14 | 15 | Feb 2022 |
| 29 | tsukuba.ac.jp | 8.28/10 | 1,800 | 517 | Feb 2022 |
| 30 | kyushu-u.ac.jp | 8.28/10 | 680 | 731 | Feb 2022 |
| 31 | asahi.co.jp | 8.28/10 | 280 | 141 | Jan 2023 |
| 32 | ritsumei.ac.jp | 8.27/10 | 960 | 1,069 | Aug 2022 |
| 33 | waseda.jp | 8.27/10 | 13,200 | 3,964 | Jun 2025 |
| 34 | ulisboa.pt | 8.25/10 | 6,100 | 1,009 | Feb 2024 |
| 35 | riken.jp | 8.25/10 | 3,800 | 2,348 | Jul 2023 |
| 36 | nagoya-u.ac.jp | 8.25/10 | 11 | 36 | Aug 2022 |
| 37 | kyoto.lg.jp | 8.24/10 | - | - | Jan 2023 |
| 38 | sub.jp | 8.24/10 | - | - | Aug 2022 |
| 39 | shueisha.co.jp | 8.23/10 | 2,100 | 162 | Jan 2025 |
| 40 | chiba.lg.jp | 8.22/10 | - | - | Jun 2025 |
| 41 | hiroshima-u.ac.jp | 8.17/10 | 7,800 | 648 | Feb 2022 |
| 42 | titech.ac.jp | 8.17/10 | 2,400 | 817 | Jul 2022 |
| 43 | pref.kyoto.jp | 8.15/10 | 1,700 | 314 | Feb 2022 |
| 44 | jpn.org | 8.13/10 | - | - | Feb 2022 |
| 45 | gifu.lg.jp | 8.12/10 | - | - | Feb 2022 |
| 46 | nojima.co.jp | 8.03/10 | 64 | 81 | Aug 2022 |
| 47 | pref.nara.jp | 8.01/10 | 300 | 157 | Oct 2023 |
| 48 | tochigi.lg.jp | 7.99/10 | - | - | Sep 2025 |
| 49 | mie.lg.jp | 7.98/10 | - | - | May 2023 |
| 50 | moo.jp | 7.95/10 | - | - | Feb 2022 |
| 51 | shochiku.co.jp | 7.95/10 | 130 | 113 | Apr 2025 |
| 52 | ssl-lolipop.jp | 7.94/10 | - | - | Aug 2022 |
| 53 | nihon-u.ac.jp | 7.92/10 | 550 | 67 | Jun 2026 |
| 54 | shinjuku.lg.jp | 7.87/10 | - | - | Jul 2022 |
| 55 | skr.jp | 7.85/10 | - | - | Apr 2022 |
| 56 | sch.gr | 7.84/10 | 12 | 33 | Nov 2022 |
| 57 | ciao.jp | 7.83/10 | - | - | Jun 2023 |
| 58 | chu.jp | 7.79/10 | - | - | Feb 2022 |
| 59 | kagawa.lg.jp | 7.79/10 | - | - | Mar 2024 |
| 60 | johas.go.jp | 7.76/10 | - | - | Feb 2022 |
| 61 | yoshimoto.co.jp | 7.76/10 | 22 | 8 | Oct 2023 |
| 62 | chuo-u.ac.jp | 7.74/10 | 430 | 163 | Aug 2022 |
| 63 | waseda.ac.jp | 7.70/10 | - | - | Jun 2023 |
| 64 | hit-u.ac.jp | 7.67/10 | 7 | 58 | Feb 2022 |
| 65 | juntendo.ac.jp | 7.65/10 | 20 | 46 | Feb 2022 |
| 66 | kansai-u.ac.jp | 7.65/10 | 600 | 296 | Feb 2022 |
| 67 | itb.ac.id | 7.65/10 | 2,200 | 780 | May 2024 |
| 68 | kanazawa-u.ac.jp | 7.65/10 | 13 | 72 | Feb 2022 |
| 69 | ijs.si | 7.63/10 | 210 | 65 | Dec 2022 |
| 70 | benesse.co.jp | 7.63/10 | 79 | 23 | Apr 2023 |
| 71 | stars.ne.jp | 7.61/10 | - | - | May 2022 |
| 72 | nagasaki-u.ac.jp | 7.61/10 | 4 | 7 | Jan 2023 |
| 73 | pref.osaka.jp | 7.60/10 | - | - | Feb 2024 |
| 74 | yamagata-u.ac.jp | 7.58/10 | 54 | 53 | Nov 2022 |
| 75 | ubbcluj.ro | 7.57/10 | 110 | 11 | Apr 2024 |
| 76 | mie-u.ac.jp | 7.55/10 | 55 | 117 | Jun 2023 |
| 77 | xrea.jp | 7.52/10 | - | - | Feb 2024 |
| 78 | gakken.co.jp | 7.51/10 | 1 | 3 | Feb 2022 |
| 79 | geidai.ac.jp | 7.51/10 | 360 | 312 | Feb 2022 |
| 80 | u-ryukyu.ac.jp | 7.49/10 | 29 | 43 | Aug 2022 |
| 81 | tmu.ac.jp | 7.49/10 | 120 | 125 | Jan 2024 |
| 82 | ehime-u.ac.jp | 7.48/10 | 18 | 28 | Feb 2022 |
| 83 | u-tokai.ac.jp | 7.47/10 | 580 | 65 | Aug 2022 |
| 84 | ynu.ac.jp | 7.47/10 | 460 | 90 | Aug 2022 |
| 85 | boy.jp | 7.47/10 | - | - | Oct 2022 |
| 86 | halfmoon.jp | 7.47/10 | - | - | Nov 2023 |
| 87 | city.hachioji.tokyo.jp | 7.46/10 | 10 | 35 | Jan 2025 |
| 88 | chiba-u.jp | 7.46/10 | 6 | 4 | May 2025 |
| 89 | shimadzu.co.jp | 7.44/10 | 130 | 36 | Jun 2023 |
| 90 | sunnyday.jp | 7.44/10 | - | - | Feb 2022 |
| 91 | yamaguchi-u.ac.jp | 7.44/10 | 91 | 66 | Jul 2024 |
| 92 | xii.jp | 7.44/10 | - | - | Aug 2022 |
| 93 | gunma-u.ac.jp | 7.43/10 | 62 | 7 | Nov 2022 |
| 94 | gree.jp | 7.41/10 | 1 | 7 | Nov 2022 |
| 95 | tuat.ac.jp | 7.41/10 | 270 | 91 | Sep 2022 |
| 96 | mixh.jp | 7.41/10 | - | - | Apr 2022 |
| 97 | xbiz.jp | 7.40/10 | - | - | May 2022 |
| 98 | shizuoka.ac.jp | 7.39/10 | 51 | 46 | Feb 2022 |
| 99 | jsce.or.jp | 7.39/10 | 92 | 135 | May 2022 |
| 100 | daa.jp | 7.39/10 | - | - | Jun 2022 |
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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