Websites Powered by Twenty Fifteen

17,501 websites tracked using Twenty Fifteen (WordPress themes) · wordpress.org

Twenty Fifteen is a WordPress theme controlling a site's appearance. Its official site is wordpress.org. PoweredBy tracks the websites that use Twenty Fifteen 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

Domains observed using Twenty Fifteen in each month's HTTP Archive crawl, Feb 2022 to Oct 2026 · peak 9,505 in Nov 2022. The tracked total above also counts sites not re-crawled recently.

Core Web Vitals

LCP 1.7 s INP 50 ms CLS 0 TTFB 900 ms

Median site among 5,347 Twenty Fifteen sites with Chrome UX data, p75 values, Sep 2026.

Top countries

Japan 1,271
United States 1,196
India 638
United Kingdom 626
Germany 582
France 499
Brazil 367
Canada 362

Sites using Twenty Fifteen by audience country, Chrome UX Report.

Usage by industry

Share of each industry's websites with a detected stack that use Twenty Fifteen; industries come from what sites declare in their own structured data.

Top sites by authority

9+ 2% · 7 of 372 sites
8+ <1% · 58 of 7,677 sites
7+ <1% · 116 of 45,712 sites
6+ <1% · 160 of 110,136 sites
5+ <1% · 226 of 246,751 sites

The share of the web's most authoritative domains, by Open Page Rank tier, seen running Twenty Fifteen in recent crawls. Only 372 domains worldwide score 9 or higher.

Websites using Twenty Fifteen

#DomainOpen Page RankOPREst. monthly visits (US)Visits (US)KeywordsFirst seen
1 mit.edu 9.18/10 163,800 31,239 Feb 2022
2 wsj.com 9.13/10 3,080,500 919,012 Feb 2022
3 state.gov 9.07/10 3,264,300 173,312 Jul 2022
4 free.fr 9.05/10 3,400 1,262 Feb 2022
5 wpengine.com 9.04/10 66,200 15,765 Aug 2022
6 columbia.edu 9.02/10 768,900 38,656 Aug 2022
7 uk.com 9.00/10 2 12 Aug 2022
8 princeton.edu 8.98/10 244,600 46,551 Mar 2022
9 sakura.ne.jp 8.95/10 - - Mar 2022
10 utexas.edu 8.92/10 502,800 11,092 Feb 2022
11 usc.edu 8.89/10 362,800 14,354 Jul 2022
12 gdpr-info.eu 8.83/10 74,800 17,296 Feb 2022
13 illinois.edu 8.83/10 47,000 3,612 Aug 2022
14 unc.edu 8.83/10 341,300 24,562 Aug 2022
15 tokyo.lg.jp 8.83/10 - - Feb 2022
16 cnrs.fr 8.82/10 4,300 2,992 Feb 2022
17 wpenginepowered.com 8.77/10 - - Jul 2024
18 bu.edu 8.77/10 804,600 234,428 Feb 2022
19 xsrv.jp 8.68/10 - - Feb 2022
20 penguinrandomhouse.com 8.66/10 1,947,200 312,835 Feb 2022
21 altervista.org 8.66/10 - - Feb 2022
22 cuny.edu 8.65/10 293,300 49,477 Feb 2022
23 usp.br 8.65/10 1 19 Feb 2022
24 main.jp 8.64/10 - - Aug 2022
25 wi.gov 8.63/10 - - Jan 2026
26 com.de 8.62/10 5 14 Jul 2026
27 dsgvo-gesetz.de 8.59/10 38 209 Feb 2022
28 hamburg.de 8.58/10 2,000 2,955 Mar 2022
29 unam.mx 8.58/10 1,900 1,196 Feb 2022
30 cnr.it 8.57/10 810 1,174 Nov 2022
31 kyoto-u.ac.jp 8.57/10 4,800 3,548 Feb 2022
32 spb.ru 8.53/10 - - Feb 2022
33 jp.net 8.52/10 66 7 Mar 2022
34 gov.ro 8.51/10 640 166 Nov 2022
35 nikkei.co.jp 8.50/10 490 255 Feb 2022
36 hypotheses.org 8.42/10 2 4 Feb 2022
37 uk.net 8.41/10 - - Aug 2022
38 wroc.pl 8.36/10 - - Feb 2022
39 ufmg.br 8.36/10 3,300 1,765 Aug 2022
40 cvut.cz 8.34/10 1,200 214 Feb 2022
41 city.nagoya.jp 8.32/10 5 68 Feb 2022
42 cafe24.com 8.31/10 6 6 Sep 2022
43 hokudai.ac.jp 8.30/10 390 19 Jun 2022
44 auburn.edu 8.28/10 359,300 36,996 Feb 2022
45 mygov.in 8.25/10 1,900 2,221 Feb 2022
46 nagoya-u.ac.jp 8.25/10 11 36 Feb 2022
47 kyoto.lg.jp 8.24/10 - - Feb 2022
48 edublogs.org 8.23/10 770 536 Aug 2022
49 utdallas.edu 8.22/10 151,700 20,834 Feb 2022
50 titech.ac.jp 8.17/10 2,400 817 Jul 2022
51 mention.com 8.15/10 9,800 10,704 Feb 2022
52 technion.ac.il 8.15/10 1,300 301 Aug 2022
53 jpn.org 8.13/10 - - Apr 2022
54 xrea.com 8.07/10 - 4 Oct 2022
55 ut.ee 8.05/10 1,200 561 Feb 2022
56 swarthmore.edu 8.03/10 29,600 10,823 Jan 2023
57 msu.ru 8.02/10 4,500 86 Nov 2022
58 msk.ru 8.02/10 - - Feb 2022
59 goteborg.se 7.99/10 430 713 Oct 2026
60 ugm.ac.id 7.99/10 2,400 2,813 Feb 2022
61 noblogs.org 7.98/10 27 1 Feb 2022
62 villanova.edu 7.97/10 880 54 Feb 2022
63 kaist.ac.kr 7.91/10 4,900 1,443 Nov 2022
64 net.ru 7.88/10 - 4 Mar 2022
65 sch.gr 7.84/10 12 33 Mar 2022
66 webfoundation.org 7.81/10 26,900 737 Feb 2022
67 retractionwatch.com 7.80/10 5,100 4,101 Feb 2022
68 psyarxiv.com 7.80/10 42 59 Jan 2023
69 miyazaki.lg.jp 7.80/10 - - Dec 2022
70 fxstreet.com 7.79/10 165,000 42,723 Aug 2022
71 chu.jp 7.79/10 - - Jul 2026
72 dreamhosters.com 7.74/10 - - Aug 2022
73 hosei.ac.jp 7.71/10 270 89 Feb 2022
74 lesinrocks.com 7.69/10 1,100 2,985 Mar 2022
75 univ-fcomte.fr 7.66/10 - - Feb 2022
76 prv.pl 7.66/10 - 2 Jul 2022
77 tokushima.lg.jp 7.65/10 - - Feb 2022
78 unas.cz 7.59/10 - - Feb 2022
79 du.ac.in 7.58/10 7,800 10,871 Feb 2022
80 igualdad.gob.es 7.54/10 560 511 Jul 2025
81 arnes.si 7.53/10 150 12 Mar 2022
82 u-ryukyu.ac.jp 7.49/10 29 43 May 2024
83 wb.gov.in 7.46/10 5,300 3,311 Jan 2026
84 bbbs.org 7.44/10 18,400 3,427 Jul 2023
85 opoka.org.pl 7.44/10 860 845 Mar 2022
86 xii.jp 7.44/10 - - Feb 2022
87 bilkent.edu.tr 7.43/10 260 64 Feb 2022
88 ku.ac.th 7.36/10 230 70 Oct 2024
89 minsk.by 7.35/10 - - Feb 2022
90 bsu.by 7.33/10 150 51 Nov 2022
91 wordpressfoundation.org 7.32/10 120 26 Feb 2022
92 phzh.ch 7.32/10 29 56 Feb 2022
93 holy.jp 7.31/10 - - Dec 2022
94 calil.jp 7.25/10 4 11 Feb 2022
95 deon.pl 7.13/10 760 1,505 Apr 2022
96 ore.edu.pl 7.11/10 25 53 Feb 2022
97 iwate-u.ac.jp 7.11/10 49 34 Dec 2022
98 nycu.edu.tw 7.08/10 140 91 Mar 2023
99 net.hr 7.08/10 2,000 3,601 Jul 2022
100 deia.eus 7.08/10 1,200 5,401 Feb 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) →

Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).

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